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Primary care doctors who accept Medicare in Ephrata, WA
CMS lists 18 clinicians in this specialty with a practice address in Ephrata. Accept Medicare assignment (the Medicare-approved amount as full payment): 17. Offer telehealth: 1.
Typical amounts Medicare approves in ZIP 98823 (2024 Medicare rates, the latest CMS has published): a new-patient visit $131, of which you pay about $33; a follow-up visit $101, of which you pay about $25 — 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.
Holly Bassler, DO
✓ Accepts Medicare assignmentMIPS score (2024): 86.7/100Graduated 2003FemaleOther offices in Ephrata: 2Michael J. Abbott, MD
✓ Accepts Medicare assignmentGraduated 1996 · University of Washington School of MedicineMaleAlexander L. Brzezny, MD
✓ Accepts Medicare assignmentGraduated 1996MaleOther offices in Ephrata: 2Casey Celerian, DO
✓ Accepts Medicare assignmentGraduated 2020 · Pacific NW Un of HS, Col of Osteopathic MedicineFemaleMaria C. Celerian, MD
✓ Accepts Medicare assignmentGraduated 1991FemaleTrent Delong, DO
✓ Accepts Medicare assignmentGraduated 2021MaleOther offices in Ephrata: 3Drug and device company payments (2025): $17Thomas P. Dillon, MD
✓ Accepts Medicare assignmentGraduated 1993 · University of Colorado School of Medicine, DenverMaleRaul P. Dominguiano, MD
✓ Accepts Medicare assignmentGraduated 2001MaleKori L. Hunt, MD
✓ Accepts Medicare assignmentGraduated 2008 · University of New Mexico School of MedicineFemaleOther offices in Ephrata: 2Marcus R. Kubosumi, MD
✓ Accepts Medicare assignmentGraduated 1984 · University of Utah School of MedicineMaleGeorge Lupas, DO
✓ Accepts Medicare assignmentGraduated 2015MaleReena Ramakrishnan, DO
✓ Accepts Medicare assignment✓ TelehealthGraduated 2015FemaleOther offices in Ephrata: 3Eryn M. Reager, DO
✓ Accepts Medicare assignmentGraduated 2022 · Rocky Vista University College of Osteopathic MedMaleOther offices in Ephrata: 2Drug and device company payments (2025): $87Mary C. Ridgeway, MD
✓ Accepts Medicare assignmentGraduated 1999 · Oregon Health Sciences University School of MedicineFemaleNathan Thomas, MD
✓ Accepts Medicare assignmentGraduated 2019 · Texas Tech University Health Science Center School of MedicineMaleLuther Thompson, MD
✓ Accepts Medicare assignmentGraduated 2008MaleMark Wefel, MD
✓ Accepts Medicare assignmentGraduated 2015 · University of Washington School of MedicineMaleMonty M. Salanoa, MD
May accept assignmentGraduated 2022 · Creighton University School of MedicineMale
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).