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Gastroenterologists who accept Medicare in Redlands, CA
CMS lists 10 clinicians in this specialty with a practice address in Redlands. Accept Medicare assignment (the Medicare-approved amount as full payment): 10. Offer telehealth: 1.
Typical amounts Medicare approves in ZIP 92373 (2024 Medicare rates, the latest CMS has published): a new-patient visit $136, of which you pay about $34; a follow-up visit $105, of which you pay about $26 — 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.
Nikhil Thiruvengadam, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88.9/100✓ TelehealthGraduated 2014 · Stanford University School of MedicineMaleDrug and device company payments (2025): $740John R. Evans, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100Graduated 1983 · Jefferson Medical College of Thomas Jefferson UniversityMaleDrug and device company payments (2025): $99Carlos A. Buitrago, MD
✓ Accepts Medicare assignmentGraduated 2018 · State University of New York Downstate Medical CenterMaleDrug and device company payments (2025): $891Victor Guharoy, MD
✓ Accepts Medicare assignmentGraduated 2014MaleDrug and device company payments (2025): $579Won Seok Jo, MD
✓ Accepts Medicare assignmentGraduated 1999 · University of California, San Diego School of MedicineMaleDrug and device company payments (2025): $895Hin Wah W. Lee, MD
✓ Accepts Medicare assignmentGraduated 1996 · Loma Linda University School of MedicineMaleDrug and device company payments (2025): $360Harold E. Paredes, MD
✓ Accepts Medicare assignmentGraduated 2013 · Icahn School of Medicine at Mount SinaiMaleDrug and device company payments (2025): $429Kaunteya Reddy, MD
✓ Accepts Medicare assignmentGraduated 2003MaleDrug and device company payments (2025): $593George B. Saffouri
✓ Accepts Medicare assignmentGraduated 2012 · Virginia Commonwealth Univ School of DentistryMaleDrug and device company payments (2025): $4,210Andrea S. Tieng, MD
✓ Accepts Medicare assignmentGraduated 2003FemaleDrug and device company payments (2025): $134
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 Redlands
- Primary care doctors178
- Nurse practitioners152
- Cardiologists22
- Dermatologists7
- Orthopedic surgeons30
- Neurologists33
- Ophthalmologists14
- Optometrists25
- Podiatrists14
- Urologists13
- Pulmonologists7
- Nephrologists10
- ENT doctors22
- Oncologists8
- Psychiatrists35
- Psychologists16
- Therapists and counselors87
- Physical therapists55
- Occupational therapists5
- Chiropractors18
- Gynecologists27
- General surgeons26
- Pain management doctors3
- Physiatrists6
- Allergists3
- Infectious disease doctors6
Other care in Redlands
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).