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Gastroenterologists who accept Medicare in Bethesda, MD
CMS lists 19 clinicians in this specialty with a practice address in Bethesda. Accept Medicare assignment (the Medicare-approved amount as full payment): 11. Offer telehealth: 15.
Typical amounts Medicare approves in ZIP 20814 (2024 Medicare rates, the latest CMS has published): a new-patient visit $148, of which you pay about $37; a follow-up visit $114, of which you pay about $28 — 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.
Bilal Ali, MD
✓ Accepts Medicare assignmentMIPS score (2024): 82.3/100✓ TelehealthGraduated 2005MaleOther offices in Bethesda: 1Drug and device company payments (2025): $340Ronald E. Gurney, MD
✓ Accepts Medicare assignmentMIPS score (2024): 82.3/100✓ TelehealthGraduated 1974 · State University of New York Downstate Medical CenterMaleAngelica Nocerino, MD
✓ Accepts Medicare assignmentMIPS score (2024): 82.3/100✓ TelehealthGraduated 2014 · Georgetown University School of MedicineFemaleOther offices in Bethesda: 1Drug and device company payments (2025): $40Raena Olsen, DO
✓ Accepts Medicare assignmentMIPS score (2024): 82.3/100✓ TelehealthGraduated 2001FemaleOther offices in Bethesda: 1Drug and device company payments (2025): $1,408Ajay Bakhshi, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100Graduated 1976MaleDrug and device company payments (2025): $1,380Naveen Gupta, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100Graduated 2003 · Chicago College of Medicine and SurgeryMaleDrug and device company payments (2025): $1,287Satyanisth T. Agrawal, DO
✓ Accepts Medicare assignmentGraduated 2008 · Lake Erie College of Osteopathic Medicine, ErieMaleDrug and device company payments (2025): $164Kirsti A. Campbell, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2017 · Harvard Medical SchoolFemaleOther offices in Bethesda: 1Drug and device company payments (2025): $1,765Aaron Fond, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2017 · University of Virginia School of MedicineMaleOther offices in Bethesda: 1Drug and device company payments (2025): $1,089Samuel Kallus, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2011 · Albert Einstein College of Medicine of Yeshiva UniversityMaleDrug and device company payments (2025): $1,833Antoinette R. Saddler, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1986 · Clvlnd Clinic Lerner College of Med of Case Wstn RSV UniversityFemaleOther offices in Bethesda: 1Drug and device company payments (2025): $105Olaya I. Brewer Gutierrez, MD
May accept assignmentMIPS score (2024): 83.3/100✓ TelehealthGraduated 2001FemaleDrug and device company payments (2025): $22,866Aline J. Charabaty Pishvaian, MD
May accept assignmentMIPS score (2024): 83.3/100✓ TelehealthGraduated 1998FemaleDrug and device company payments (2025): $87,384Margaret Keane, MD
May accept assignmentMIPS score (2024): 83.3/100✓ TelehealthGraduated 2006FemaleDrug and device company payments (2025): $33,641Sameer Khan, MD
May accept assignmentMIPS score (2024): 83.3/100✓ TelehealthGraduated 2017 · Icahn School of Medicine at Mount SinaiMaleOther offices in Bethesda: 1Drug and device company payments (2025): $27,796Alia S. Dadabhai, MD
May accept assignment✓ TelehealthGraduated 2004FemaleOther offices in Bethesda: 1Drug and device company payments (2025): $354Zadid K. Haq, MD
May accept assignment✓ TelehealthGraduated 2019 · Louisiana State University School of Medicine in New OrleansMaleDrug and device company payments (2025): $147Megan Murphy, MD
May accept assignment✓ TelehealthGraduated 2015 · Georgetown University School of MedicineFemaleDrug and device company payments (2025): $646Gary M. Roggin, MD
May accept assignmentGraduated 1965 · University of Michigan Medical SchoolMaleDrug and device company payments (2025): $14
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 Bethesda
- Primary care doctors384
- Geriatricians4
- Nurse practitioners269
- Cardiologists32
- Dermatologists27
- Orthopedic surgeons180
- Neurologists94
- Ophthalmologists30
- Optometrists20
- Podiatrists30
- Urologists25
- Nephrologists5
- Endocrinologists13
- Rheumatologists24
- ENT doctors32
- Oncologists42
- Psychiatrists27
- Psychologists23
- Therapists and counselors77
- Physical therapists132
- Occupational therapists18
- Speech therapists12
- Audiologists27
- Chiropractors6
- Gynecologists19
- General surgeons6
- Vascular surgeons6
- Pain management doctors14
- Physiatrists60
- Dietitians7
- Neurosurgeons24
- Infectious disease doctors7
Other care in Bethesda
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).