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Oncologists who accept Medicare in Thousand Oaks, CA
CMS lists 19 clinicians in this specialty with a practice address in Thousand Oaks. Accept Medicare assignment (the Medicare-approved amount as full payment): 19. Offer telehealth: 16.
Typical amounts Medicare approves in ZIP 91360 (2024 Medicare rates, the latest CMS has published): a new-patient visit $185, of which you pay about $46; a follow-up visit $109, of which you pay about $27 — 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.
Bahareh Bahadini, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.8/100✓ TelehealthGraduated 1996 · University of Southern California Keck School of MedicineFemaleDrug and device company payments (2025): $31George Hajjar, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.8/100✓ TelehealthGraduated 1988MaleDrug and device company payments (2025): $664Sabrina A. Hardy, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.8/100✓ TelehealthGraduated 2015FemaleDrug and device company payments (2025): $56Ashwin Kashyap, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.8/100✓ TelehealthGraduated 1985MaleDrug and device company payments (2025): $63Nikhila Kethireddy, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.8/100✓ TelehealthGraduated 2016FemaleDrug and device company payments (2025): $313Benjamin Leach, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.8/100✓ TelehealthGraduated 2011 · Tulane University School of MedicineMaleDrug and device company payments (2025): $234Shamel Sanani, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.8/100✓ TelehealthGraduated 1972MaleDrug and device company payments (2025): $48Sidharth R. Anand, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.5/100✓ TelehealthGraduated 2010 · University of Southern California Keck School of MedicineMaleOther offices in Thousand Oaks: 1Drug and device company payments (2025): $5,461Shahryar A. Ashouri, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.5/100Graduated 2002 · University of Southern California Keck School of MedicineMaleDrug and device company payments (2025): $31Alexander C. Black, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.5/100✓ TelehealthGraduated 1983MaleDrug and device company payments (2025): $33Wanxing Chai-Ho, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.5/100✓ TelehealthGraduated 2011FemaleDrug and device company payments (2025): $2,746Lauren E. Eisenbud, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.5/100✓ TelehealthGraduated 2014FemaleOther offices in Thousand Oaks: 1Drug and device company payments (2025): $68Rodolfo Gutierrez, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.5/100✓ TelehealthGraduated 2012 · University of California, Davis School of MedicineMaleOther offices in Thousand Oaks: 1Drug and device company payments (2025): $302Solomon I. Hamburg, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.5/100✓ TelehealthGraduated 1981 · New York University School of MedicineMaleDrug and device company payments (2025): $18,056Julie Huynh, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.5/100✓ TelehealthGraduated 2009 · Albany Medical College of Union UniversityFemaleOther offices in Thousand Oaks: 1Drug and device company payments (2025): $327Tasha L. Lin, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.5/100✓ TelehealthGraduated 2013 · University of Michigan Medical SchoolFemaleDrug and device company payments (2025): $135Samuel J. Slomowitz, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.5/100✓ TelehealthGraduated 2008MaleOther offices in Thousand Oaks: 1Michael T. Cerniglia, MD
✓ Accepts Medicare assignmentGraduated 2019 · Georgetown University School of MedicineMaleOther offices in Thousand Oaks: 1Drug and device company payments (2025): $1,384Juan E. Sanchez, MD
✓ Accepts Medicare assignmentGraduated 1984MaleDrug and device company payments (2025): $5,004
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 Thousand Oaks
- Primary care doctors134
- Nurse practitioners68
- Cardiologists33
- Dermatologists24
- Orthopedic surgeons16
- Neurologists18
- Gastroenterologists17
- Ophthalmologists16
- Optometrists18
- Podiatrists9
- Urologists4
- Pulmonologists12
- Nephrologists7
- Endocrinologists6
- Rheumatologists6
- ENT doctors14
- Psychiatrists12
- Psychologists10
- Therapists and counselors48
- Physical therapists84
- Occupational therapists16
- Audiologists4
- Chiropractors32
- Gynecologists16
- General surgeons16
- Vascular surgeons4
- Pain management doctors5
- Physiatrists6
- Allergists3
- Sleep medicine doctors3
- Neurosurgeons4
- Infectious disease doctors4
Other care in Thousand Oaks
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).