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Primary care doctors who accept Medicare in Alpine, CA
CMS lists 16 clinicians in this specialty with a practice address in Alpine. Accept Medicare assignment (the Medicare-approved amount as full payment): 16. Offer telehealth: 1.
Typical amounts Medicare approves in ZIP 91901 (2024 Medicare rates, the latest CMS has published): a new-patient visit $140, of which you pay about $35; a follow-up visit $108, 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.
Mary C. Gessner-Peterson, DO
✓ Accepts Medicare assignmentMIPS score (2024): 73.9/100Graduated 2005 · Philadelphia College of Osteopathic MedicineFemalePeter M. Baum, DO
✓ Accepts Medicare assignmentGraduated 2015MaleJoshua M. Blessing, MD
✓ Accepts Medicare assignmentGraduated 2017 · Creighton University School of MedicineMaleOther offices in Alpine: 1Robert T. Calvert, DO
✓ Accepts Medicare assignmentGraduated 2016 · College of Osteo Med of the Pacific at PomonaMaleSteve A. Granada, MD
✓ Accepts Medicare assignmentGraduated 1995 · New York Medical CollegeMaleJames Grebosky, MD
✓ Accepts Medicare assignmentGraduated 1989 · Pennsylvania State University College of MedicineMaleMichael D. Hurst, DO
✓ Accepts Medicare assignmentGraduated 1997 · At Still University of Health Sciences, College of Osteo Med, KirksvilleMaleOther offices in Alpine: 1Drug and device company payments (2025): $20Estefania Larrosa, MD
✓ Accepts Medicare assignmentGraduated 2021 · University of California, Davis School of MedicineFemaleDrug and device company payments (2025): $110Sheila Malekian, MD
✓ Accepts Medicare assignmentGraduated 2025FemaleSofia Qureshi, MD
✓ Accepts Medicare assignmentGraduated 2010FemaleDrug and device company payments (2025): $20Dana A. Ryan, MD
✓ Accepts Medicare assignmentGraduated 1997 · Washington University School of MedicineFemaleNiloufar Salehi, DO
✓ Accepts Medicare assignmentGraduated 2008FemaleDrug and device company payments (2025): $198Mariana V. Salerno, MD
✓ Accepts Medicare assignmentGraduated 2004FemaleKarun K. Singla, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2017MaleRuth Wang, MD
✓ Accepts Medicare assignmentGraduated 2021 · University of California, San Diego School of MedicineFemaleBlake A. Wylie, DO
✓ Accepts Medicare assignmentGraduated 2008Male
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.
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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).