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Neurosurgeons who accept Medicare in Ventura, CA
CMS lists 8 clinicians in this specialty with a practice address in Ventura. Accept Medicare assignment (the Medicare-approved amount as full payment): 8. Offer telehealth: 5.
Typical amounts Medicare approves in ZIP 93003 (2024 Medicare rates, the latest CMS has published): a new-patient visit $141, of which you pay about $35; a follow-up visit $77, of which you pay about $19 — the 20% coinsurance after the yearly Part B deductible. Clinicians who don't accept assignment can charge up to 15% more; with a Medicare Advantage plan, your plan's copay applies instead.
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Order: clinicians who accept assignment first, then by MIPS score (highest first), then by last name.
James M. Herman, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86/100Graduated 1986 · Northwestern University Feinberg Medical SchoolMaleNathan S. Oh, DO
✓ Accepts Medicare assignmentMIPS score (2024): 86/100✓ TelehealthGraduated 2014 · Des Moines University of Osteopathic Medicine and Health SciencesMaleDrug and device company payments (2025): $1,560David L. Westra, MD
✓ Accepts Medicare assignmentMIPS score (2024): 23.5/100Graduated 2004 · University of Texas Medical School at HoustonMaleDrug and device company payments (2025): $821Richard Y. Chung, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1994 · Harvard Medical SchoolMaleChristopher A. Sarkiss, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2011MaleDrug and device company payments (2025): $257Minwoo Song
✓ Accepts Medicare assignmentGraduated 2018 · Loma Linda University School of MedicineMaleDrug and device company payments (2025): $28Katherine E. Wagner, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2014 · Rutgers New Jersey Medical SchoolFemaleOther offices in Ventura: 1Drug and device company payments (2025): $6,583Brian Walcott, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2008 · Loyola University of Chicago, Stritch School of MedicineMaleDrug and device company payments (2025): $514
Before you book
This list comes from Medicare's enrollment records, not from reviews. Call the office to confirm the clinician is taking new Medicare patients. With Original Medicare, a clinician who accepts assignment can only charge you the Medicare deductible and coinsurance; one who doesn't may charge up to 15% more than the Medicare-approved amount. If you have a Medicare Advantage plan, check that the clinician is in the plan's network.
The MIPS final score (0–100) comes from Medicare's Merit-based Incentive Payment System for 2024. It combines quality measures, cost, improvement activities and use of certified health records, and it sets a payment adjustment. Clinicians who report as a group share the group's score. It is not a patient rating, and many clinicians have no published score.
Payments from drug and medical device companies come from CMS Open Payments (2025 general payments: meals, travel, consulting and speaking fees, gifts and similar), summed for each clinician. Receiving payments is legal and common and does not mean a clinician did anything wrong.
Other specialists in Ventura
- Primary care doctors336
- Nurse practitioners73
- Cardiologists26
- Dermatologists13
- Orthopedic surgeons31
- Neurologists14
- Gastroenterologists13
- Ophthalmologists19
- Optometrists38
- Podiatrists14
- Urologists11
- Pulmonologists10
- Nephrologists7
- Endocrinologists9
- Rheumatologists8
- ENT doctors13
- Oncologists13
- Psychiatrists61
- Psychologists22
- Therapists and counselors117
- Physical therapists90
- Occupational therapists20
- Speech therapists8
- Chiropractors28
- Gynecologists31
- General surgeons18
- Vascular surgeons6
- Pain management doctors5
- Physiatrists10
- Dietitians5
- Infectious disease doctors4
Other care in Ventura
Hospitals · Nursing homes · Dialysis centers · Home health agencies · Hospices
Nearby cities
Enrollment, addresses and scores are as reported to CMS and can change. This is not a list of in-network providers for any Medicare Advantage plan, and it is not medical advice. Source: CMS Provider Data Catalog — Doctors and Clinicians National Downloadable File, Clinician MIPS Performance 2024 and Facility Affiliation Data (released Oct 2, 2026).