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General surgeons who accept Medicare in Hermiston, OR
CMS lists 5 clinicians in this specialty with a practice address in Hermiston. Accept Medicare assignment (the Medicare-approved amount as full payment): 5. Offer telehealth: 0.
Typical amounts Medicare approves in ZIP 97838 (2024 Medicare rates, the latest CMS has published): a new-patient visit $85, of which you pay about $21; a follow-up visit $69, of which you pay about $17 — 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.
Isabella Flores Merritt, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.4/100Graduated 1999 · Temple University School of MedicineFemaleOther offices in Hermiston: 1Drug and device company payments (2025): $155Marques S. Johnson, MD
✓ Accepts Medicare assignmentGraduated 2010 · Loma Linda University School of MedicineMaleOther offices in Hermiston: 1Drug and device company payments (2025): $11David L. Maccabee, MD
✓ Accepts Medicare assignmentGraduated 1996 · University of California, Davis School of MedicineMaleOther offices in Hermiston: 1Drug and device company payments (2025): $1,337Garrett M. Pool, MD
✓ Accepts Medicare assignmentGraduated 2014 · Oregon Health Sciences University School of MedicineMaleOther offices in Hermiston: 1Drug and device company payments (2025): $36Ann M. Rust, MD
✓ Accepts Medicare assignmentGraduated 2003 · Creighton University School of MedicineFemaleOther offices in Hermiston: 1Drug and device company payments (2025): $74,151
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 Hermiston
- Primary care doctors22
- Nurse practitioners30
- Cardiologists6
- Orthopedic surgeons5
- Optometrists5
- Urologists14
- Therapists and counselors4
- Physical therapists8
- Chiropractors8
- Gynecologists7
Other care in Hermiston
Hospitals · Nursing homes · Dialysis centers · 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).