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Dermatologists who accept Medicare in Ventura, CA
CMS lists 13 clinicians in this specialty with a practice address in Ventura. Accept Medicare assignment (the Medicare-approved amount as full payment): 13. Offer telehealth: 3.
Typical amounts Medicare approves in ZIP 93003 (2024 Medicare rates, the latest CMS has published): a new-patient visit $95, of which you pay about $24; 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.
Larissa N. Larsen, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.5/100✓ TelehealthGraduated 2010FemaleDrug and device company payments (2025): $19Rikk N. Lynn, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86/100Graduated 2006MaleOther offices in Ventura: 1Drug and device company payments (2025): $1,848John H. Thacher, MD
✓ Accepts Medicare assignmentMIPS score (2024): 12.1/100Graduated 1969 · University of Southern California Keck School of MedicineMaleRobert R. Jordan, MD
✓ Accepts Medicare assignmentMIPS score (2024): 0/100Graduated 1984 · University of California, Geffen School of MedicineMalePeter L. Karlsberg, MD
✓ Accepts Medicare assignmentMIPS score (2024): 0/100Graduated 1991 · University of California, San Francisco School of MedicineMaleDrug and device company payments (2025): $4Brian D. Brosnan, MD
✓ Accepts Medicare assignmentGraduated 2000 · New York Medical CollegeMaleDrug and device company payments (2025): $117Charles W. Chia, MD
✓ Accepts Medicare assignmentGraduated 2005 · Warren Alpert Medical School of Brown UniversityMaleDrug and device company payments (2025): $52Vida Chitsazzadeh, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2016FemaleKarin Eshagh, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2014 · University of California, San Diego School of MedicineFemaleOther offices in Ventura: 1Drug and device company payments (2025): $129Seth R. Stevens, MD
✓ Accepts Medicare assignmentGraduated 1986 · Oregon Health Sciences University School of MedicineMaleDrug and device company payments (2025): $147Grace S. Sun, MD
✓ Accepts Medicare assignmentGraduated 2009 · Baylor College of MedicineFemaleDrug and device company payments (2025): $1,905Ryan D. Wells, MD
✓ Accepts Medicare assignmentGraduated 1999 · Eastern Virginia Medical SchoolMaleMay M. Zhang, MD
✓ Accepts Medicare assignmentGraduated 2014Female
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
- 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
- Neurosurgeons8
- 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).