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General surgeons who accept Medicare in Thousand Oaks, CA
CMS lists 16 clinicians in this specialty with a practice address in Thousand Oaks. Accept Medicare assignment (the Medicare-approved amount as full payment): 16. Offer telehealth: 1.
Typical amounts Medicare approves in ZIP 91360 (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.
David Litvak, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.8/100Graduated 1993 · University of Chicago, Pritzker School of MedicineMaleDrug and device company payments (2025): $279Marissa A. De Freese, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88/100Graduated 2003FemaleOther offices in Thousand Oaks: 1Drug and device company payments (2025): $114David E. Handman, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88/100Graduated 2001MaleDrug and device company payments (2025): $1,260Mamta Swaroop, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88/100Graduated 2003FemaleOther offices in Thousand Oaks: 1Drug and device company payments (2025): $102Kathy Palatnik, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100Graduated 2010 · University of California, Geffen School of MedicineFemaleDrug and device company payments (2025): $385Mai N. Brooks, MD
✓ Accepts Medicare assignmentMIPS score (2024): 38.8/100Graduated 1988 · Harvard Medical SchoolFemaleOther offices in Thousand Oaks: 1Drug and device company payments (2025): $95Rahim Aimaq, MD
✓ Accepts Medicare assignmentGraduated 2008 · University of California, San Diego School of MedicineMaleWalid S. Arnaout, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1985MaleOther offices in Thousand Oaks: 1Drug and device company payments (2025): $168Gregory A. Chambers, MD
✓ Accepts Medicare assignmentGraduated 1995 · University of Kansas School of Med (kc/wich/sal)MaleOther offices in Thousand Oaks: 1Drug and device company payments (2025): $2,581Timothy Deaconson, MD
✓ Accepts Medicare assignmentGraduated 1983 · University of Texas Southwestern Medical School at DallasMaleOther offices in Thousand Oaks: 1Drug and device company payments (2025): $145Lissette Gomez, MD
✓ Accepts Medicare assignmentGraduated 2014 · Baylor College of MedicineFemaleOther offices in Thousand Oaks: 1Makrouhi A. Kademian, MD
✓ Accepts Medicare assignmentGraduated 1997 · R Franklin University of Med & Sci/chicago Medical SchoolFemaleOther offices in Thousand Oaks: 1Drug and device company payments (2025): $1,754Amir Mehran, MD
✓ Accepts Medicare assignmentGraduated 1994 · Duke University School of MedicineMaleDrug and device company payments (2025): $328James A. Murray, MD
✓ Accepts Medicare assignmentGraduated 1990MaleYoussef Shaban, DO
✓ Accepts Medicare assignmentGraduated 2016 · Nova Southeastern College of Osteo MedicineMaleOther offices in Thousand Oaks: 1Donald J. Waldrep, MD
✓ Accepts Medicare assignmentGraduated 1990 · Medical University of South Carolina College of MedicineMaleOther offices in Thousand Oaks: 2Drug and device company payments (2025): $1,426
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
- Oncologists19
- Psychiatrists12
- Psychologists10
- Therapists and counselors48
- Physical therapists84
- Occupational therapists16
- Audiologists4
- Chiropractors32
- Gynecologists16
- 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).