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Gastroenterologists who accept Medicare in Billings, MT
CMS lists 36 clinicians in this specialty with a practice address in Billings. Accept Medicare assignment (the Medicare-approved amount as full payment): 36. Offer telehealth: 12.
Typical amounts Medicare approves in ZIP 59101 (2024 Medicare rates, the latest CMS has published): a new-patient visit $131, of which you pay about $33; a follow-up visit $100, 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.
David Bridgers, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100Graduated 1999MaleDrug and device company payments (2025): $1,837Ernest Q. Williams, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100Graduated 1994MaleDrug and device company payments (2025): $16,279Richard K. Heard, MD
✓ Accepts Medicare assignmentMIPS score (2024): 91.1/100Graduated 2008 · University of Mississippi School of MedicineMaleDrug and device company payments (2025): $1,787Pierce Dotherow, MD
✓ Accepts Medicare assignmentMIPS score (2024): 89.1/100Graduated 1984MaleDrug and device company payments (2025): $265Charles E. Hall, MD
✓ Accepts Medicare assignmentMIPS score (2024): 89.1/100Graduated 1979 · University of Mississippi School of MedicineMaleDrug and device company payments (2025): $427Reed Hogan, MD
✓ Accepts Medicare assignmentMIPS score (2024): 89.1/100Graduated 2008MaleDrug and device company payments (2025): $26,902Michelle Petro, MD
✓ Accepts Medicare assignmentMIPS score (2024): 89.1/100Graduated 1999FemaleDrug and device company payments (2025): $312Ernest Weeks, MD
✓ Accepts Medicare assignmentMIPS score (2024): 89.1/100Graduated 2006MaleDrug and device company payments (2025): $372Jane Claire Williams, MD
✓ Accepts Medicare assignmentMIPS score (2024): 89.1/100Graduated 2005FemaleDrug and device company payments (2025): $317Paul G. Dotherow, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.8/100Graduated 2017MaleOther offices in Billings: 1Drug and device company payments (2025): $2,701Michael C. Fischer, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87/100Graduated 1985 · University of North Dakota School of MedicineMaleMary Ann A. Huang, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86/100✓ TelehealthGraduated 1996 · Loyola University of Chicago, Stritch School of MedicineFemaleDrug and device company payments (2025): $74,804Anupama Mathew, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.1/100Graduated 2001 · University of New Mexico School of MedicineFemaleRobert Anderson, MD
✓ Accepts Medicare assignmentMIPS score (2024): 81/100✓ TelehealthGraduated 2001MaleDrug and device company payments (2025): $2,065Alexander Mantas, MD
✓ Accepts Medicare assignmentMIPS score (2024): 81/100Graduated 2007MaleDrug and device company payments (2025): $911Rushikesh H. Shah, MD
✓ Accepts Medicare assignmentMIPS score (2024): 81/100✓ TelehealthGraduated 2010MaleDrug and device company payments (2025): $15,350Crystal L. Bernstein, MD
✓ Accepts Medicare assignmentMIPS score (2024): 79.8/100Graduated 1996 · Duke University School of MedicineFemaleReed Hogan, MD
✓ Accepts Medicare assignmentMIPS score (2024): 76.9/100✓ TelehealthGraduated 1980MaleDrug and device company payments (2025): $16,780Shuja Yousuf, MD
✓ Accepts Medicare assignmentMIPS score (2024): 76.9/100Graduated 1995MaleDrug and device company payments (2025): $313Abdullah Al-Shahrani, MD
✓ Accepts Medicare assignmentGraduated 2011MaleKim M. Almodovar, MD
✓ Accepts Medicare assignmentGraduated 1982FemaleDrug and device company payments (2025): $596Yevgeniy Arefiev, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2014MaleDrug and device company payments (2025): $62Russ Arjal, MD
✓ Accepts Medicare assignmentGraduated 2002MaleStewart Boyd, MD
✓ Accepts Medicare assignmentGraduated 2009MaleDrug and device company payments (2025): $375Andrei Gasic, MD
✓ Accepts Medicare assignmentGraduated 1986 · Medical College of PennsylvaniaMaleDrug and device company payments (2025): $100Andrew B. Gentry, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2001MaleDrug and device company payments (2025): $613Steven W. Hammond, MD
✓ Accepts Medicare assignmentGraduated 1988 · University of Colorado School of Medicine, DenverMaleKeri L. Hill, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2000 · University of North Dakota School of MedicineFemaleDrug and device company payments (2025): $149Wen Huan Ho, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2007MaleDrug and device company payments (2025): $2,206Christie Mannino, MD
✓ Accepts Medicare assignmentGraduated 2012FemaleRaj J. Shah, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1994 · Northeastern Ohio University College of MedicineMaleOther offices in Billings: 1Drug and device company payments (2025): $22,899Nathaniel J. Spezia-Lindner, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2019MaleDrug and device company payments (2025): $336James Underwood, MD
✓ Accepts Medicare assignmentGraduated 1995MaleDrug and device company payments (2025): $223Ralph Vance, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2010MaleDrug and device company payments (2025): $110Sachin M. Wani, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1998MaleOther offices in Billings: 1Drug and device company payments (2025): $21,436Mark Wilson, MD
✓ Accepts Medicare assignmentGraduated 1987MaleDrug and device company payments (2025): $524
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 Billings
- Primary care doctors176
- Geriatricians4
- Nurse practitioners220
- Cardiologists62
- Dermatologists14
- Orthopedic surgeons30
- Neurologists28
- Ophthalmologists21
- Optometrists45
- Podiatrists11
- Urologists17
- Pulmonologists21
- Nephrologists10
- Endocrinologists3
- Rheumatologists5
- ENT doctors17
- Oncologists13
- Psychiatrists38
- Psychologists10
- Therapists and counselors208
- Physical therapists71
- Occupational therapists19
- Speech therapists6
- Audiologists9
- Chiropractors38
- Gynecologists25
- General surgeons31
- Vascular surgeons5
- Physiatrists11
- Allergists3
- Dietitians12
- Neurosurgeons16
- Infectious disease doctors7
Other care in Billings
Hospitals · Nursing homes · Dialysis centers · Home health agencies · Hospices
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).