Home › Doctors › Kentucky › Lexington › Gastroenterologists
Gastroenterologists who accept Medicare in Lexington, KY
CMS lists 39 clinicians in this specialty with a practice address in Lexington. Accept Medicare assignment (the Medicare-approved amount as full payment): 38. Offer telehealth: 12.
Typical amounts Medicare approves in ZIP 40508 (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 $23 — 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.
Is this your organization or practice? Feature it at the top of this page — $49 for 30 days →
Order: clinicians who accept assignment first, then by MIPS score (highest first), then by last name.
John A. Brown, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.3/100Graduated 2015 · University of Kentucky College of MedicineMaleDrug and device company payments (2025): $374Mark I. Brunner, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.3/100Graduated 1999 · University of Cincinnati College of MedicineMaleDrug and device company payments (2025): $1,266Adalberto R. Castellanos, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.3/100Graduated 1988MaleOther offices in Lexington: 2Drug and device company payments (2025): $2,010Warren N. Frank, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.3/100Graduated 1978 · Ohio State University College of MedicineMaleDrug and device company payments (2025): $2,307Victor A. Howard
✓ Accepts Medicare assignmentMIPS score (2024): 94.3/100✓ TelehealthGraduated 2011 · West Virginia University School of MedicineMaleOther offices in Lexington: 2Drug and device company payments (2025): $3,102James S. Pezzi, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.3/100Graduated 1986 · Temple University School of MedicineMaleOther offices in Lexington: 1Drug and device company payments (2025): $2,704Mark A. Spurlin, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.3/100Graduated 1984 · University of Kentucky College of MedicineMaleGregory M. Woolfolk, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.3/100Graduated 1991 · University of Louisville School of MedicineMaleDrug and device company payments (2025): $4,273Nathan H. Massey, MD
✓ Accepts Medicare assignmentMIPS score (2024): 91/100Graduated 1996 · University of Kentucky College of MedicineMaleDrug and device company payments (2025): $177Stephen P. Schindler, MD
✓ Accepts Medicare assignmentMIPS score (2024): 91/100Graduated 1992 · University of Kentucky College of MedicineMaleDrug and device company payments (2025): $1,404Joseph E. Auer
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100Graduated 2005 · University of Kentucky College of MedicineMaleTerrence A. Barrett, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100✓ TelehealthGraduated 1983 · University of Illinois College of Med (chi/peor/rock/chm-Urb)MaleOther offices in Lexington: 6Drug and device company payments (2025): $477Donald R. Campbell, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100Graduated 2013MaleDrug and device company payments (2025): $2,200Darwin L. Conwell, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100Graduated 1989 · University of Cincinnati College of MedicineMaleDeborah R. Flomenhoft, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100✓ TelehealthGraduated 1998 · University of Kentucky College of MedicineFemaleOther offices in Lexington: 6Drug and device company payments (2025): $3,551Alla Y. Grigorian, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100✓ TelehealthGraduated 1993FemaleOther offices in Lexington: 6Bahaaeldeen S. Ismail, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100✓ TelehealthGraduated 2004MaleVenkata Rajesh Konjeti, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100✓ TelehealthGraduated 2007MaleDrug and device company payments (2025): $119Christina D. Leyson, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100✓ TelehealthGraduated 2004FemaleDrug and device company payments (2025): $1,470Samuel H. Mardini, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100Graduated 1992MaleOther offices in Lexington: 1Marijeta Pekez, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100✓ TelehealthGraduated 2012FemaleCourtney L. Perry, DO
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100✓ TelehealthGraduated 2016 · Rocky Vista University College of Osteopathic MedFemaleDrug and device company payments (2025): $57Ruben R. Plentz, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100Graduated 2001MaleJens Rosenau, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100✓ TelehealthGraduated 1998MaleDrug and device company payments (2025): $131Steven I. Shedlofsky, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100Graduated 1974 · University of Michigan Medical SchoolMaleOther offices in Lexington: 3Kshitij Thakur, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.8/100Graduated 2011MaleDrug and device company payments (2025): $2,154Todd L. Horn, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100Graduated 1998 · University of Kentucky College of MedicineMaleDrug and device company payments (2025): $2,850Matthew D. Ashmun, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2003 · University of Kentucky College of MedicineMaleDrug and device company payments (2025): $3,603Ingrid Beyruth Schwartz, MD
✓ Accepts Medicare assignmentGraduated 2015FemaleAaron R. Brenner, MD
✓ Accepts Medicare assignmentGraduated 2020 · University of Illinois College of Med (chi/peor/rock/chm-Urb)MaleDrug and device company payments (2025): $24An-Yu Chen, MD
✓ Accepts Medicare assignmentGraduated 1985 · Northeastern Ohio University College of MedicineMaleDrug and device company payments (2025): $5,203Damir Kusmic, MD
✓ Accepts Medicare assignmentGraduated 2016 · University of Kentucky College of MedicineMaleDrug and device company payments (2025): $1,514Kathleen R. Martin, MD
✓ Accepts Medicare assignmentGraduated 1985 · Pennsylvania State University College of MedicineFemaleDrug and device company payments (2025): $2,840Scott A. Merkley
✓ Accepts Medicare assignment✓ TelehealthGraduated 2004 · University of Louisville School of MedicineMaleOther offices in Lexington: 2Drug and device company payments (2025): $3,453Ujasbhai Patel, MD
✓ Accepts Medicare assignmentGraduated 2015 · University of Arkansas College of MedicineMaleDrug and device company payments (2025): $2,266Donald F. Rauh, MD
✓ Accepts Medicare assignmentGraduated 1976 · University of Kentucky College of MedicineMaleDrug and device company payments (2025): $25Brooks D. Richardson, MD
✓ Accepts Medicare assignmentGraduated 2019 · University of Louisville School of MedicineMaleDrug and device company payments (2025): $1,331June Y. Yong, MD
✓ Accepts Medicare assignmentGraduated 1999 · University of Alabama School of MedicineMaleDrug and device company payments (2025): $2,788Kassem Sharif, MD
May accept assignmentGraduated 2016MaleOther offices in Lexington: 1
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 Lexington
- Primary care doctors373
- Nurse practitioners1,006
- Cardiologists91
- Dermatologists28
- Orthopedic surgeons70
- Neurologists89
- Ophthalmologists64
- Optometrists65
- Podiatrists18
- Urologists29
- Pulmonologists40
- Nephrologists33
- Endocrinologists17
- Rheumatologists17
- ENT doctors27
- Oncologists38
- Psychiatrists67
- Psychologists38
- Therapists and counselors267
- Physical therapists188
- Occupational therapists109
- Speech therapists43
- Audiologists29
- Chiropractors44
- Gynecologists81
- General surgeons68
- Vascular surgeons19
- Pain management doctors24
- Physiatrists36
- Allergists14
- Dietitians9
- Neurosurgeons22
- Infectious disease doctors24
Other care in Lexington
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).