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Endocrinologists who accept Medicare in Simi Valley, CA
CMS lists 9 clinicians in this specialty with a practice address in Simi Valley. Accept Medicare assignment (the Medicare-approved amount as full payment): 9. Offer telehealth: 5.
Typical amounts Medicare approves in ZIP 93065 (2024 Medicare rates, the latest CMS has published): a new-patient visit $141, of which you pay about $35; 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.
Zarmen K. Israelian, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.8/100Graduated 1988MaleDrug and device company payments (2025): $2,105Leon Kujmanian, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.8/100Graduated 1993MaleDrug and device company payments (2025): $636Oliver L. Ong, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.8/100Graduated 1996 · George Washington University School of MedicineMaleOther offices in Simi Valley: 2Drug and device company payments (2025): $2,347Nissar A. Shah, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.8/100✓ TelehealthGraduated 1989MaleOther offices in Simi Valley: 1Drug and device company payments (2025): $72Behrouz D. Salehian, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.8/100✓ TelehealthGraduated 1979MaleDrug and device company payments (2025): $73Amy Y. Chow, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.5/100✓ TelehealthGraduated 2008FemaleHarris L. Wasser, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100Graduated 1977MaleOther offices in Simi Valley: 1Adam Puchalski, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2014MaleOther offices in Simi Valley: 1Drug and device company payments (2025): $459Malika C. Singh, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2009FemaleDrug and device company payments (2025): $160
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 Simi Valley
- Primary care doctors109
- Nurse practitioners54
- Cardiologists25
- Dermatologists7
- Orthopedic surgeons13
- Neurologists9
- Gastroenterologists10
- Ophthalmologists5
- Optometrists17
- Podiatrists3
- Urologists6
- Nephrologists3
- Rheumatologists5
- ENT doctors5
- Oncologists11
- Psychiatrists10
- Psychologists3
- Therapists and counselors26
- Physical therapists39
- Occupational therapists9
- Audiologists7
- Chiropractors6
- Gynecologists6
- General surgeons12
Other care in Simi Valley
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).