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Gastroenterologists who accept Medicare in Olney, MD
CMS lists 27 clinicians in this specialty with a practice address in Olney. Accept Medicare assignment (the Medicare-approved amount as full payment): 23. Offer telehealth: 21.
Typical amounts Medicare approves in ZIP 20832 (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.
Robert M. Byrne
✓ Accepts Medicare assignmentMIPS score (2024): 89.6/100✓ TelehealthGraduated 2013 · Indiana University School of MedicineMaleDrug and device company payments (2025): $365Shaffer Mok, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88/100✓ TelehealthGraduated 2010MaleDrug and device company payments (2025): $9,480Urooj Ahmed, MD
✓ Accepts Medicare assignmentMIPS score (2024): 81.1/100✓ TelehealthGraduated 1990MaleDrug and device company payments (2025): $1,100Monica Passi, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80.5/100✓ TelehealthGraduated 2015 · George Washington University School of MedicineFemaleDrug and device company payments (2025): $698Rudrajit M. Rai, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100✓ TelehealthGraduated 1993 · Johns Hopkins University School of MedicineMaleDrug and device company payments (2025): $11,859Farzin Rashti, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100✓ TelehealthGraduated 2008 · Howard University College of MedicineMaleDrug and device company payments (2025): $8,856Marc L. Kozam, MD
✓ Accepts Medicare assignmentMIPS score (2024): 22.1/100✓ TelehealthGraduated 1991 · University of Alabama School of MedicineMaleOther offices in Olney: 3Ruben Acosta, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2002 · University of Connecticut School of MedicineMaleOther offices in Olney: 1Drug and device company payments (2025): $1,676Eduardo Castillo Del Castillo, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2003MaleDrug and device company payments (2025): $2,377Nissrin M. Ezmerli, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2003 · George Washington University School of MedicineFemaleDrug and device company payments (2025): $1,160Robert G. Finkel, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1989 · University of Maryland School of MedicineMaleOther offices in Olney: 1Drug and device company payments (2025): $227Joseph J. Genovese, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1982 · University of Maryland School of MedicineMaleOther offices in Olney: 1Drug and device company payments (2025): $1,372Stephen D. Humm, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2003 · Vanderbilt University School of MedicineMaleDrug and device company payments (2025): $59Neil Julie, MD
✓ Accepts Medicare assignmentGraduated 1980MaleDrug and device company payments (2025): $461Roderick B. Kreisberg, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2002 · University of Maryland School of MedicineMaleDrug and device company payments (2025): $1,792Dhruv Lowe, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2011MaleDrug and device company payments (2025): $1,786Alexander Mamunes, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2017 · University of Maryland School of MedicineMaleDrug and device company payments (2025): $2,084Eric J. Margulies, MD
✓ Accepts Medicare assignmentGraduated 2019 · University of Maryland School of MedicineMaleOther offices in Olney: 1Drug and device company payments (2025): $259Pia Prakash, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2010 · George Washington University School of MedicineFemaleDrug and device company payments (2025): $2,771Akriti Saxena, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2012 · Tufts University School of MedicineFemaleOther offices in Olney: 1Drug and device company payments (2025): $1,901Michael S. Schindler, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1982 · University of Massachusetts Medical SchoolMaleDrug and device company payments (2025): $1,115Zaifi Shanavas, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1996 · Drexel University College of MedicineMaleOther offices in Olney: 1Drug and device company payments (2025): $2,046Dabo Xu, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2004MaleDrug and device company payments (2025): $1,536Jad Farha, MD
May accept assignmentGraduated 2018MaleDrug and device company payments (2025): $268Monica Patel, MD
May accept assignmentGraduated 2020FemaleNeha Rajpal, MD
May accept assignmentGraduated 2020 · Georgetown University School of MedicineFemaleRaymond Richhart, MD
May accept assignmentGraduated 2020MaleDrug and device company payments (2025): $325
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 Olney
- Primary care doctors65
- Nurse practitioners105
- Cardiologists12
- Orthopedic surgeons69
- Neurologists3
- Ophthalmologists6
- Optometrists4
- Podiatrists11
- Pulmonologists4
- Endocrinologists3
- Oncologists10
- Psychiatrists9
- Psychologists8
- Therapists and counselors53
- Physical therapists87
- Occupational therapists22
- Audiologists4
- Chiropractors4
- Gynecologists9
- General surgeons3
- Physiatrists6
Other care in Olney
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).