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Gastroenterologists who accept Medicare in Tulsa, OK
CMS lists 29 clinicians in this specialty with a practice address in Tulsa. Accept Medicare assignment (the Medicare-approved amount as full payment): 29. Offer telehealth: 13.
Typical amounts Medicare approves in ZIP 74133 (2024 Medicare rates, the latest CMS has published): a new-patient visit $123, of which you pay about $31; a follow-up visit $94, of which you pay about $24 — 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.
Abhishek Polavarapu, MD
✓ Accepts Medicare assignmentMIPS score (2024): 90.9/100Graduated 2012MaleDrug and device company payments (2025): $2,727Eric L. Cottrill, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.1/100Graduated 1980 · University of Oklahoma College of MedicineMaleDrug and device company payments (2025): $195Brandon A. Conkling, DO
✓ Accepts Medicare assignmentMIPS score (2024): 85.1/100Graduated 1996 · Oklahoma State University College of Osteopathic MedicineMaleDrug and device company payments (2025): $1,852Markham L. Nightengale, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.1/100Graduated 1988MaleDrug and device company payments (2025): $208Aatish M. Patel, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.1/100Graduated 2010MaleDrug and device company payments (2025): $1,255Dushyant Singh, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.1/100Graduated 2013MaleOther offices in Tulsa: 1Drug and device company payments (2025): $274Sheldon C. Berger, DO
✓ Accepts Medicare assignmentMIPS score (2024): 80.4/100Graduated 1984 · Kansas City College of Medicine and SurgeryMaleOther offices in Tulsa: 1Drug and device company payments (2025): $1,122Jeffrey L. Bigler, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80.4/100✓ TelehealthGraduated 1997 · University of Oklahoma College of MedicineMaleOther offices in Tulsa: 4Drug and device company payments (2025): $202William K. Briggs, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80.4/100✓ TelehealthGraduated 1990MaleDrug and device company payments (2025): $2,812Geoffrey A. Fillmore, DO
✓ Accepts Medicare assignmentMIPS score (2024): 80.4/100✓ TelehealthGraduated 2004 · Oklahoma State University College of Osteopathic MedicineMaleOther offices in Tulsa: 3Drug and device company payments (2025): $808Scott E. Hendrickson, DO
✓ Accepts Medicare assignmentMIPS score (2024): 80.4/100Graduated 1998MaleOther offices in Tulsa: 3Drug and device company payments (2025): $1,264John R. Hood, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80.4/100Graduated 1982 · University of Oklahoma College of MedicineMaleDrug and device company payments (2025): $2,403Michael J. Martin, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80.4/100✓ TelehealthGraduated 1990MaleOther offices in Tulsa: 4Drug and device company payments (2025): $1,999Roy L. Thompson, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80.4/100Graduated 2001 · University of Oklahoma College of MedicineMaleOther offices in Tulsa: 1Drug and device company payments (2025): $3,220Mohamad S. Al-Rifai, DO
✓ Accepts Medicare assignmentGraduated 2019 · Oklahoma State University College of Osteopathic MedicineMaleOther offices in Tulsa: 1Drug and device company payments (2025): $1,112Robert P. Aran, DO
✓ Accepts Medicare assignmentGraduated 2017 · Oklahoma State University College of Osteopathic MedicineMaleOther offices in Tulsa: 1Drug and device company payments (2025): $1,489Andrew S. Crawford, DO
✓ Accepts Medicare assignmentGraduated 1996 · Oklahoma State University College of Osteopathic MedicineMaleOther offices in Tulsa: 1Drug and device company payments (2025): $1,184Aaron P. Fieker, DO
✓ Accepts Medicare assignment✓ TelehealthGraduated 2005 · Oklahoma State University College of Osteopathic MedicineMaleOther offices in Tulsa: 3Drug and device company payments (2025): $2,108Jeffrey M. Hunt, DO
✓ Accepts Medicare assignment✓ TelehealthGraduated 2004 · Oklahoma State University College of Osteopathic MedicineMaleDrug and device company payments (2025): $15,354Richard R. Jesudass, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1982MaleDrug and device company payments (2025): $960Febin John, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2011MaleOther offices in Tulsa: 1Drug and device company payments (2025): $751Christopher R. Lynch, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2003 · University of Oklahoma College of MedicineMaleDrug and device company payments (2025): $706Amjad Mreyoud, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1999MaleDrug and device company payments (2025): $1,078Vasudevan U. Raghuraman, MD
✓ Accepts Medicare assignmentGraduated 1980MaleOther offices in Tulsa: 1Drug and device company payments (2025): $2,737Sanjay K. Sikka, MD
✓ Accepts Medicare assignmentGraduated 2000 · University of Oklahoma College of MedicineMaleDrug and device company payments (2025): $1,996Michael M. Sutton, DO
✓ Accepts Medicare assignment✓ TelehealthGraduated 2019 · Oklahoma State University College of Osteopathic MedicineMaleDrug and device company payments (2025): $562Harvey A. Tatum, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1980 · University of Oklahoma College of MedicineMaleDrug and device company payments (2025): $991Kishore Vipperla, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2001MaleDrug and device company payments (2025): $992Michael Warren, DO
✓ Accepts Medicare assignmentGraduated 2018MaleDrug and device company payments (2025): $2,270
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 Tulsa
- Primary care doctors645
- Geriatricians4
- Nurse practitioners765
- Cardiologists95
- Dermatologists38
- Orthopedic surgeons87
- Neurologists72
- Ophthalmologists33
- Optometrists96
- Podiatrists24
- Urologists43
- Pulmonologists25
- Nephrologists32
- Endocrinologists18
- Rheumatologists9
- ENT doctors32
- Oncologists33
- Psychiatrists100
- Psychologists41
- Therapists and counselors407
- Physical therapists160
- Occupational therapists29
- Speech therapists20
- Audiologists38
- Chiropractors76
- Gynecologists82
- General surgeons63
- Vascular surgeons15
- Pain management doctors24
- Physiatrists18
- Allergists9
- Sleep medicine doctors5
- Dietitians16
- Neurosurgeons22
- Infectious disease doctors10
Other care in Tulsa
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).