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Gastroenterologists who accept Medicare in Warren, OH
CMS lists 13 clinicians in this specialty with a practice address in Warren. Accept Medicare assignment (the Medicare-approved amount as full payment): 13. Offer telehealth: 0.
Typical amounts Medicare approves in ZIP 44483 (2024 Medicare rates, the latest CMS has published): a new-patient visit $126, of which you pay about $32; a follow-up visit $96, 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.
Farid Naffah, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88.8/100Graduated 1982MaleDrug and device company payments (2025): $2,306Kevin Castillo, DO
✓ Accepts Medicare assignmentMIPS score (2024): 84.8/100Graduated 2016 · Lake Erie College of Osteopathic Medicine, ErieMaleDrug and device company payments (2025): $2,950Zev R. Maycon, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.8/100Graduated 1992 · Rutgers New Jersey Medical SchoolMaleDrug and device company payments (2025): $1,424Rony C. Awaida, MD
✓ Accepts Medicare assignmentMIPS score (2024): 83.5/100Graduated 2005MaleDrug and device company payments (2025): $3,478Milan Dodig, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100Graduated 1992MaleDrug and device company payments (2025): $4,752Maher Azzouz, MD
✓ Accepts Medicare assignmentGraduated 1991MaleDrug and device company payments (2025): $164Amy Calderon, MD
✓ Accepts Medicare assignmentGraduated 2010 · New York College of Osteo Medicine of New York Institute of TechnologyFemaleDrug and device company payments (2025): $888Vivian N. Chidi, MD
✓ Accepts Medicare assignmentGraduated 2009FemaleDrug and device company payments (2025): $403Nicholas Katz, MD
✓ Accepts Medicare assignmentGraduated 1983 · Medical University of South Carolina College of MedicineMaleDrug and device company payments (2025): $469Carl E. Manzo, MD
✓ Accepts Medicare assignmentGraduated 2014 · Loyola University of Chicago, Stritch School of MedicineMaleDrug and device company payments (2025): $286Carlos A. Ricotti, MD
✓ Accepts Medicare assignmentGraduated 1971MaleDrug and device company payments (2025): $1,049Amandeep Singh, MD
✓ Accepts Medicare assignmentGraduated 2007MaleDrug and device company payments (2025): $1,081Adel I. Youssef, MD
✓ Accepts Medicare assignmentGraduated 1995 · Loma Linda University School of MedicineMaleDrug and device company payments (2025): $710
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 Warren
- Primary care doctors55
- Nurse practitioners113
- Cardiologists19
- Dermatologists6
- Orthopedic surgeons11
- Neurologists9
- Ophthalmologists5
- Optometrists13
- Podiatrists13
- Pulmonologists4
- ENT doctors3
- Psychiatrists3
- Psychologists5
- Therapists and counselors61
- Physical therapists30
- Occupational therapists4
- Chiropractors9
- Gynecologists6
- General surgeons8
- Pain management doctors5
- Physiatrists3
Other care in Warren
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).