Top Deep Brain Stimulation Specialists in the USA: Find Your Care Team
A patient with tremor-resistant Parkinson’s disease sits in a clinic while a Deep brain stimulation specialists USA team maps their brain’s motor circuits in real time. This network of neurologists, neurosurgeons, and programmers evaluates each case through multidisciplinary review, then tailors electrode placement and stimulation parameters to the individual’s symptoms. By integrating pre-operative imaging, intraoperative microelectrode recording, and post-operative optimization, the team reduces motor fluctuations and medication side effects. Referring physicians or patients directly contact these specialists for a comprehensive DBS candidacy assessment and ongoing device management.
Leading Centers for Neuromodulation Across the United States
Across the United States, leading centers for neuromodulation cluster in academic hubs where deep brain stimulation specialists form tight-knit, multidisciplinary teams. At the Cleveland Clinic, neurosurgeons and neurologists jointly map each patient’s targeted circuits, adjusting electrodes over months in shared clinics—a model mirrored at UCSF, where intraoperative recording lets specialists hear the brain’s own signals before final placement. In the Midwest, the University of Minnesota’s center thrives on long-term follow-up, with the same DBS specialist adjusting programming years after surgery, not just at implant. At Emory and Vanderbilt, specialists prioritize recalibration for dystonia and OCD, while Stanford’s team leads with closed-loop systems that adapt stimulation in real time. Patients often travel between these hubs for second opinions, but the real continuity comes from nurse practitioners who coordinate care across state lines. What separates the best centers isn’t the technology alone—it’s how their specialists argue respectfully over your imaging in a weekly conference. For practical referrals, ask each center how many of their physicians handle only DBS, not general movement disorders.
Top-tier Academic Hospitals Pioneering Advanced Electrode Implantation
Top-tier academic hospitals pioneering advanced electrode implantation set the standard for precision neuromodulation surgery in the United States. Institutions like Cleveland Clinic, Johns Hopkins, and UCSF employ stereotactic systems with intraoperative MRI and microelectrode recording to target submillimeter structures, such as the subthalamic nucleus, with exceptional accuracy. These centers refine implantation trajectories using patient-specific connectomic mapping, reducing side effects and optimizing therapeutic windows for complex conditions like dystonia or treatment-resistant depression. *Their rigorous fellowship programs ensure that lead placement is performed by surgeons who have completed hundreds of procedures, directly translating into lower revision rates.* Patients seeking the most advanced electrode technologies—including directional leads and closed-loop systems—find these hospitals unmatched in clinical outcome data and multidisciplinary follow-up.
Regional Hubs of Excellence in Movement Disorder Surgery
Regional Hubs of Excellence in Movement Disorder Surgery are concentrated, multi-disciplinary centers—often within academic medical systems—that specialize in high-volume deep brain stimulation (DBS) for conditions like Parkinson’s disease, essential tremor, and dystonia. These hubs typically combine experienced neurosurgeons, movement disorder neurologists, and dedicated programming teams, enabling streamlined preoperative evaluation and postoperative optimization. For patients, seeking care at a designated hub means access to standardized DBS protocols and comprehensive long-term follow-up, which can reduce complications and improve outcome consistency. Many hubs also participate in shared registries, allowing benchmarking of surgical techniques and lead placement accuracy. Regional referral networks often emerge around these centers, with satellite clinics for initial screening and local programming support.
Question: Why should a patient prioritize a Regional Hub of Excellence in Movement Disorder Surgery over a local hospital?
Answer: These hubs offer higher surgical volumes, multidisciplinary team reviews, and dedicated DBS programming resources, which are directly linked to better targeting precision and more reliable symptom control after implantation.
How to Verify a Center’s Volume and Success Metrics for DBS
To verify a DBS center’s true volume, ask directly for the number of lead implantations performed annually, then cross-check this with Medicare claims data or the center’s own published neurosurgical case logs. Success metrics should be scrutinized beyond patient satisfaction scores: request specific rates for motor improvement (e.g., UPDRS III change), complication incidence (hemorrhage, infection), and revision or explant rates. Critically, compare these figures against national benchmarks from multicenter registries. Follow a strict sequence:
- Request procedure volume for the last three years, separated by indication (PD, ET, OCD).
- Demand de-identified outcome data, including stimulation settings at one year and reduction in medication.
- Ask for adverse event rates and how they handle lead malposition or loss of efficacy.
- Confirm whether outcomes are tracked prospectively or recalled retrospectively—only prospective, audited outcome tracking is reliable for meaningful comparison.
Finally, interview a nurse coordinator or programmer; their daily data entry habits reveal whether metrics are real or curated for marketing.
Key Medical Specialists Who Make Up a Functional Neurosurgery Team
A functional neurosurgery team for deep brain stimulation (DBS) in the USA is led by a neurosurgeon specializing in stereotactic and functional procedures, who handles precise electrode placement. The neurologist—often a movement disorder specialist—manages patient selection, medication adjustments, and postoperative programming of the stimulator. A neuropsychologist performs cognitive and psychological evaluations to screen for contraindications and guide targeting decisions. Intraoperative neurophysiologists or electrophysiologists map brain signals during surgery to confirm optimal lead location. A DBS nurse coordinator educates patients, schedules follow-ups, and troubleshoots device issues between clinic visits. Together, these key medical specialists who make up a functional neurosurgery team ensure safe implantation and long-term symptom control. For patients seeking DBS centers across the USA, confirming all these roles are active is essential—geography matters less than a fully integrated, experienced squad.
The Role of the Stereotactic Neurosurgeon in Target Mapping
The stereotactic neurosurgeon is the precision architect of DBS, translating MRI and CT data into a 3D brain map. They fuse these images, calculate coordinates, and choose the safest trajectory to avoid blood vessels and critical cortex. They also interpret subtle anatomical variations, since no two brains are identical, to refine the final target. Using a stereotactic frame or frameless system, they then guide the electrode to that exact spot, verifying placement with microelectrode recordings. Their judgment directly determines whether the lead lands in the subthalamic nucleus or misses it by a millimeter. Accurate target mapping is the foundation of every successful DBS outcome, separating effective therapy from poor results.
In short, the stereotactic neurosurgeon’s role in target mapping is to fuse imaging, calculate coordinates, and guide the electrode with sub-millimeter precision—making them the definitive arbiter of where therapy begins.
Behavioral Neurologists and Their Part in Patient Selection
Behavioral neurologists anchor the patient selection process for DBS in the USA by dissecting the neuropsychiatric profile that motor scores alone miss. They systematically evaluate executive function, impulse control, affective lability, and baseline cognitive reserve to predict post-operative outcomes, particularly for subthalamic or pallidal targets. Their structured interviews and standardized scales, such as the Frontal Assessment Battery or neurobehavioral inventories, filter out candidates with emerging dementia, active psychosis, or severe apathy who would not benefit or could deteriorate. They also determine whether psychiatric comorbidities like treatment-resistant depression or OCD—common DBS indications—are genuine targets versus confounding variables. Without their granular pre-surgical characterization, an otherwise motorically ideal candidate might receive electrodes but lose functional independence. Their role directly dictates whether a referral proceeds to stereotactic planning or returns to conservative management.
Q: How does a behavioral neurologist alter a DBS candidacy decision?
A: They veto or approve based on nuanced behavioral predictors—for example, a patient with obsessive-compulsive traits and good insight may be selected, while one with frontal disinhibition and poor emotional regulation is excluded, even if tremor severity is identical.
Neuropsychologists Who Evaluate Cognitive Fitness Pre-Procedure
Before any DBS surgery, a neuropsychologist runs you through detailed memory, attention, and problem-solving tests to see if your brain can handle the implant and the stimulation changes ahead. They flag early cognitive decline that could worsen post-op, and they help set realistic expectations—like whether you’ll still manage daily tasks or need extra support. Their pre-procedure evaluation also creates a baseline score, so later they can measure if the stimulator is truly helping or accidentally dulling your thinking. For cognitive fitness screening in DBS candidates, this consult is your best safeguard against surprises.
Criteria for Choosing a High-Performing Implantation Expert
When seeking a high-performing implantation expert for deep brain stimulation in the USA, you must look beyond board certification and examine their annual surgical volume—ask directly how many leads they place per year and what their complication rates are for hemorrhage or infection. A top specialist will also show you their intraoperative microelectrode recording success rate, since this precision mapping determines whether the electrode lands within a millimeter of your target. During consultations, the expert should openly discuss their revision statistics and whether they use asleep versus awake techniques, because your symptom relief hinges on that choice.
The real differentiator is how they handle a misplaced lead—the best ones will walk you through their salvage strategy before you ever sign a consent form.
Finally, verify they have dedicated movement disorder neurologists on-call who can manage stimulation programming in the weeks after surgery, as that follow-up continuity is part of the implantation package, not an afterthought.
Board Certifications and Fellowship Training in Functional Surgery
When evaluating Deep brain stimulation specialists in the USA, verify board certification in neurosurgery or neurology from the American Board of Neurological Surgery or the American Board of Psychiatry and Neurology. Fellowship training in stereotactic and functional neurosurgery is non-negotiable; this dedicated year focuses solely on DBS lead placement, mapping, and intraoperative testing. Confirm the fellowship was completed at a high-volume center, ideally one performing over 100 DBS cases annually. A practical sequence for vetting credentials:
- Query the ABMS certification status online.
- Request the exact fellowship program name and director.
- Ask how many DBS procedures the specialist performed during fellowship.
- Check for sub-specialty certification in functional neurosurgery if offered.
Certifications alone do not guarantee technical skill; the fellowship’s surgical volume is the decisive marker of proficiency.
Years of Hands-On Experience with Both Old and New Hardware Systems
A specialist’s years of hands-on experience with both old and new hardware systems directly determines their diagnostic flexibility during programming adjustments. Older pulse generators, such as non-rechargeable models with limited battery telemetry, require distinct impedance readings and voltage calibration compared to modern directional leads with segmented contacts and adaptive closed-loop sensing. Surgeons who have managed legacy systems can troubleshoot sudden battery depletion or erratic stimulation without relying solely on manufacturer software, while familiarity with newer hardware—like Bluetooth-enabled neurostimulators—enables precise remote titration of current steering. A veteran clinician who has physically implanted both generations understands that electrode migration behaves differently across lead designs, altering stimulation thresholds in ways manuals rarely capture. This cross-era fluency reduces the risk of unnecessary surgical revisions when patients transfer from older devices to upgraded platforms.
- Recognize hardware-specific failure modes, such as cracked insulation on legacy cables versus wireless interference in modern systems.
- Adjust programming protocols for differing pulse-width ranges and frequency limits between old and new implantable pulse generators.
- Anticipate battery longevity discrepancies and rechargeable coil alignment nuances across device generations.
Access to Cutting-Edge Imaging Tools Like 7T MRI and Interventional Scans
When vetting deep brain stimulation specialists in the USA, access to cutting-edge imaging tools like 7T MRI and interventional scans separates good outcomes from exceptional precision. A 7T MRI reveals submillimeter basal ganglia anatomy, allowing the surgeon to target the subthalamic nucleus or globus pallidus with unprecedented fidelity, reducing side effects. Interventional CT or MRI, used during lead placement, offers real-time confirmation of electrode depth and trajectory, enabling immediate repositioning if a microelectrode drifts. However, a scanner on-site means nothing without a surgeon who actively translates its data into intraoperative decisions. Ask prospective experts how frequently they utilize these modalities for complex redo cases or patients with prior brain surgery.
- Confirm the facility offers 7T MRI specifically for DBS planning, not just diagnostic use.
- Inquire if interventional MRI is available for awake or asleep lead placement.
- Check whether the specialist personally reviews raw imaging sequences or relies solely on software reconstructions.
Conditions Commonly Treated by These Subspecialists
Deep brain stimulation specialists across the USA primarily treat **movement disorders**, with Parkinson’s disease being the most common indication—targeting tremors, rigidity, and medication-resistant motor fluctuations. They also manage **dystonia** and essential tremor, where DBS can dramatically restore functional control when oral therapies fail. Beyond movement, these experts address **obsessive-compulsive disorder (OCD)** under FDA humanitarian device exemptions, implanting electrodes to modulate dysregulated frontal circuits. Epilepsy, particularly drug-resistant focal seizures, is another key condition, with responsive neurostimulation or anterior nucleus stimulation offering seizure reduction. Tourette syndrome and chronic pain are emerging targets at specialized academic centers. *The nuance is that candidacy hinges not just on diagnosis, but on psychiatric stability and realistic postoperative expectations.* Each condition demands precise anatomical targeting and individualized programming by these subspecialists, who tailor stimulation parameters to each patient’s unique neural signature.
Parkinson’s Disease and Essential Tremor Program Directors
Program directors for Parkinson’s disease and essential tremor lead multidisciplinary DBS teams, ensuring every candidate undergoes rigorous motor, cognitive, and psychiatric screening before surgery. They personally refine target coordinates for subthalamic nucleus or ventral intermediate nucleus placement, adjusting stimulation parameters in follow-up visits to minimize dyskinesia or gait freezing. These directors also decide when to transition patients from medication optimization to surgical evaluation, often using quantitative tremor assessments and wearable sensor data to track progression. By coordinating with movement disorder neurologists and neurosurgeons, they manage essential tremor DBS candidacy with precision, fine-tuning settings for voice, balance, or fine motor control while troubleshooting complications like lead migration or infection. Their expertise directly shapes patient outcomes, from initial referral to long-term programming.
Dystonia and Tourette Syndrome Referral Networks
For dystonia and Tourette syndrome, specialized referral networks for DBS candidates streamline access to movement disorder neurologists and functional neurosurgeons who are essential for pre-surgical screening. These networks connect primary neurologists with centers that have dedicated dystonia and tic clinics, ensuring that patients undergo rigorous motor and psychiatric evaluations before lead implantation. When selecting a DBS specialist, verify that their network includes a multidisciplinary team—neuropsychologists, psychiatrists, and rehabilitation therapists—who manage the complex titration of stimulation and medication adjustments post-operatively. For Tourette syndrome, referral networks prioritize specialists experienced in treating refractory tics, often coordinating with pediatric or adult psychiatry to monitor impulsive or affective side effects. In the USA, these pathways reduce diagnostic delays and prevent unnecessary surgeries by funneling cases to centers with the highest volume for these specific indications. Direct self-referral is possible, but a formal network referral often yields faster, more tailored evaluations.
Emerging Uses for Psychiatric Indications Like OCD and Depression
Beyond movement disorders, DBS specialists in the USA increasingly apply targeted neuromodulation for refractory psychiatric conditions, particularly obsessive-compulsive disorder and major depression. For OCD, electrodes placed in the ventral capsule/ventral striatum or subthalamic nucleus can interrupt maladaptive frontostriatal circuits, often when therapy and medication fail. In depression, stimulation of the subcallosal cingulate or medial forebrain bundle is emerging as a viable option for treatment-resistant cases, with response defined by sustained symptom reduction rather than acute mood shifts. *Individual anatomical targeting based on white-matter tractography is critical for predicting psychiatric response.*
- DBS for OCD targets the ventral capsule/ventral striatum to modulate compulsive loops.
- Depression protocols prioritize the subcallosal cingulate for anhedonia and rumination.
- Adaptive DBS (closed-loop) is being trialed to adjust stimulation based on neural biomarkers of mood state.
- Patient selection requires documented failure of at least two evidence-based psychiatric treatments.
Geographic Distribution of Recognized DBS Programs
For patients seeking Deep brain stimulation specialists USA, the geographic distribution of recognized DBS programs is heavily concentrated in major academic medical hubs. The highest density of multidisciplinary teams exists along the Northeast corridor—Boston, New York, and Philadelphia—followed by the Midwest’s Cleveland and Minneapolis, and the West Coast’s San Francisco and Los Angeles. These centers offer the full continuum of care, including neuroimaging, intraoperative neurophysiology, and post-op programming. However, recognized programs also operate in smaller regional referral centers, such as those in Denver, Houston, and Seattle, which serve vast rural catchment areas. Because travel frequency is high for initial evaluation and follow-up adjustments, prioritizing a program within a manageable radius—while verifying its comprehensive team—is often more practical than seeking a distant, larger center.
High-Density Clusters on the East Coast and Within the Midwest
For patients seeking high-density DBS specialist clusters, the East Coast corridor from Boston through New York to Philadelphia offers the deepest concentration of movement disorder centers, often within a two-hour drive—meaning shorter wait times for second opinions and easier access to clinical trials. Within the Midwest, Chicago and Cleveland form a secondary hub, with the Cleveland Clinic and University of Chicago anchoring a dense network of fellowship-trained neurosurgeons who perform high-volume procedures. *Patients in these regions rarely need to cross state lines for a comprehensive evaluation, though intra-cluster competition can make scheduling faster at smaller satellite sites.* A practical advantage emerges: residents near these clusters can request same-day imaging or programming adjustments more readily than those in rural zones. The true benefit lies in proximity to multidisciplinary teams, not just surgeons.
East Coast (Boston–NYC–Philly) and Midwest (Chicago–Cleveland) hold the highest concentration of DBS specialists, enabling rapid access, abundant second opinions, and streamlined follow-up care.
Premier West Coast Institutions for Adaptive Closed-Loop Systems
The **Premier West Coast Institutions for Adaptive Closed-Loop Systems** center on Stanford Medicine and UC San Francisco, where clinical DBS programming now integrates real-time neural feedback. At Stanford, the Baker Lab spearheads closed-loop trials using electrocorticography to adjust stimulation parameters for tremor and obsessive-compulsive disorder. UCSF’s Rajput Lab focuses on adaptive systems for depression, employing chronic sensing leads that auto-modulate amplitude based on beta-band biomarkers. Both centers offer evaluation for patients refractory to standard DBS, requiring a referral and multiday intracranial monitoring. Closed-loop DBS refinement on the West Coast remains available only at these academic sites, not community hospitals.
Q: Which West Coast institution offers the most comprehensive adaptive closed-loop DBS evaluation?
A: Stanford Medicine provides the widest tier of adaptive DBS trials, including sensor-driven tuning for both motor and psychiatric indications, though UCSF excels in chronic sensing configurations.
Southern and Mountain State Centers Gaining National Recognition
Centers in the Southern and Mountain states now command national referrals for deep brain stimulation, particularly for complex movement and psychiatric indications. Houston’s Texas Medical Center and Atlanta’s Emory system have built recognized programs for refractory epilepsy and obsessive-compulsive disorder, drawing patients from coasts due to their high-volume surgical teams. In the Mountain region, Phoenix’s Barrow Neurological Institute and Denver’s UCHealth deliver stereotactic precision for Parkinson’s and essential tremor, with outcomes matching traditional Northeast hubs. These sites excel in adaptive stimulation protocols and intraoperative imaging, making them **destination DBS centers for out-of-state patients** seeking shorter wait times and comparative cost advantages without compromising expertise.
Questions to Ask a Prospective Functional Neurosurgery Provider
When you’re vetting deep brain stimulation specialists in the USA, start by asking about their **surgical volume**—specifically, how many DBS procedures they perform annually and whether they handle both awake and asleep (MRI-guided) techniques. A high-volume provider is crucial. Ask if they personally interpret the brain mapping or delegate it, and inquire about their complication rates for hemorrhage or infection. You should also probe how they manage lead placement accuracy—do they use intraoperative testing or advanced imaging? For programming, ask if the clinic offers fused, multidisciplinary follow-ups with a neurologist who specializes in DBS, and how quickly they can see you for troubleshooting. Finally, request to speak with a current patient to gauge real-world responsiveness.
Inquiring About Lead Placement Accuracy and Complication Rates
When evaluating a prospective DBS provider, you must directly inquire about their lead placement accuracy metrics and how they track complication rates. Ask for specific data on postoperative imaging confirming electrode coordinates versus planned targets, as this reveals surgical precision. Request their infection, hemorrhage, and revision rates, and compare these figures against national benchmarks from academic centers. A confident specialist will openly share this information without hesitation, offering tangible numbers rather than vague assurances. Probe how they handle misplaced leads—including intraoperative microelectrode recording failures or repositioning protocols—since this demonstrates their contingency planning. Ultimately, transparent disclosure of complication statistics is a hallmark of high-volume, experienced programs, and your safety depends on holding them accountable to those measurable outcomes.
Understanding the Team’s Approach to Post-Operative Programming
When evaluating a prospective DBS team, ask specifically how they structure post-operative programming sessions—whether they use a standard schedule or tailor titration based on symptom diaries. Clarify who performs adjustments (physician vs. trained nurse) and whether programming occurs in-clinic, remotely, or via home visits. Inquire about the typical interval between lead placement and first activation, plus how they handle medication reduction during this phase. Confirm their threshold for imaging or re-programming if stimulation fails to alleviate symptoms, and whether they offer emergency contact for sudden side effects like dyskinesia or speech changes. Finally, assess their willingness to collaborate with your local neurologist for maintenance adjustments.
Asking About Battery Life, Rechargeable Options, and Follow-Up Care
When evaluating a deep brain stimulation specialist in the USA, ask directly about the specific battery type they implant—primary-cell versus rechargeable—and how that choice affects replacement surgery intervals, typically three to five years for non-rechargeable units versus up to fifteen for rechargeable models. Clarify the daily recharging burden, including whether the patient must charge for 30–60 minutes per day or weekly, and whether the system supports “burst” or “sleep” modes to extend battery life. Inquire about the follow-up protocol: who programs the device, how often battery status is checked remotely or in-clinic, and what the surgical revision timeline looks like when depletion approaches. Finally, confirm the clinic’s policy for emergency battery depletion, including whether on-call programming support exists.
- Compare projected battery longevity and replacement costs for both rechargeable and non-rechargeable systems.
- Ask about remote monitoring capabilities for battery status between scheduled visits.
- Verify which provider (neurologist, nurse, or surgeon) handles routine battery checks and reprogramming.
- Request a written follow-up schedule covering battery depletion checks, programming adjustments, and device troubleshooting.
Insurance and Multidisciplinary Care Considerations
When you finally secure a consultation with a deep brain stimulation specialist in the USA, the first conversation often isn’t about electrodes—it’s about prior authorization. Your specialist’s office will need to prove medical necessity to your insurer, documenting failed medication trials and imaging results, a process that can take weeks. Meanwhile, the real weight of multidisciplinary care becomes clear: your neurologist, neurosurgeon, and psychiatrist must all submit synchronized notes to the same carrier, because one missing report can stall coverage. You’ll learn to coordinate separately with a DBS programmer and a movement disorder psychologist, each billing differently. Most patients discover their policy only covers the surgery, not the 20+ adjustment visits, forcing you to negotiate bundled payment plans before the first incision.
Navigating Prior Authorizations and Coverage for Advanced Stimulators
Securing coverage for advanced stimulators demands a proactive, documentation-heavy approach from your DBS specialist’s office. Your care team must submit a prior authorization that explicitly justifies the device’s medical necessity—citing failed conservative therapies, specific neuroimaging, and why a rechargeable or directional system outperforms standard options for your anatomy. **Navigating prior authorizations for advanced DBS devices** requires appealing initial denials with peer-to-peer reviews and leveraging your surgeon’s clinical notes to counter insurer objections. Insurers often delay approval, so your specialist’s coordinator should file expedited requests and track every deadline. Without this targeted advocacy, even ideal surgical candidates face months of unnecessary waiting, making a dedicated authorization navigator essential to your outcome.
Q: What triggers an insurance denial for an advanced stimulator?
A: Denials typically stem from insufficient proof that conventional treatments failed or from coding errors that misclassify the device’s complexity—both fixable with a revised clinical justification from your DBS specialist.
Finding Practices with Dedicated Nurse Navigators and DBS Coordinators
When you’re hunting for the right DBS team, ask point-blank if they have a **dedicated nurse navigator or DBS coordinator**—this role is a game-changer for insurance and care logistics. These pros handle prior authorizations, appeal denials, and schedule your programming sessions, so you’re not stuck on hold with your insurer. Search clinic websites for “coordinator” under their DBS program, or call and ask who manages your pre-surgery checklist. Many top US centers list these roles openly, and patient Facebook groups often name specific coordinators who smooth out the process. Skip practices where the surgeon’s front desk doubles as insurance help—you want someone whose sole job is shepherding you through.
A dedicated nurse navigator or DBS coordinator simplifies insurance hurdles and visit coordination—confirm this role exists before committing to a practice.
Multi-State Telehealth Consultations for Second Opinions
For DBS candidates, multi-state telehealth consultations for second opinions enable access to top surgical teams without travel. You can send uploaded MRI sequences, medication logs, and prior neuropsychological testing to a specialist in another state, then review candidacy, target selection, and risk stratification in a live video session. Confirm the remote physician can access your imaging portal and that your local neurologist remains copied on the written recommendation. This route is especially useful when your current center lacks experience with complex cases like prior failed leads or comorbid dystonia.
- Request a synchronous review of your actual DBS targeting MRI, thync inc not just a summary report.
- Ask whether the consulting specialist will co-manage postoperative programming remotely or only advise.
- Ensure the written second opinion explicitly states if it overrides your local team’s risk assessment.