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Gastroenterologists who accept Medicare in Valhalla, NY
CMS lists 10 clinicians in this specialty with a practice address in Valhalla. Accept Medicare assignment (the Medicare-approved amount as full payment): 10. Offer telehealth: 6.
Typical amounts Medicare approves in ZIP 10595 (2024 Medicare rates, the latest CMS has published): a new-patient visit $154, of which you pay about $39; a follow-up visit $118, of which you pay about $29 — 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.
Nicholas J. Costable, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100Graduated 2018MaleOther offices in Valhalla: 1Drug and device company payments (2025): $4,098Samuel H. Sigal, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 1983 · University of Chicago, Pritzker School of MedicineMaleOther offices in Valhalla: 1Drug and device company payments (2025): $908Cynthia Cohen, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100✓ TelehealthGraduated 2017 · New York University School of MedicineFemaleOther offices in Valhalla: 1Drug and device company payments (2025): $498Brad M. Dworkin, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100Graduated 1976 · Jefferson Medical College of Thomas Jefferson UniversityMaleOther offices in Valhalla: 1Drug and device company payments (2025): $406Edward Lebovics, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100✓ TelehealthGraduated 1980 · New York University School of MedicineMaleOther offices in Valhalla: 1Drug and device company payments (2025): $321Shireen Pais, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100✓ TelehealthGraduated 2000FemaleOther offices in Valhalla: 1Drug and device company payments (2025): $6,715David C. Wolf, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100✓ TelehealthGraduated 1985 · Columbia University College of Physicians and SurgeonsMaleDrug and device company payments (2025): $73,635Raymond Kenny, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1981MaleJonathan Potack, MD
✓ Accepts Medicare assignmentGraduated 2002 · Icahn School of Medicine at Mount SinaiMaleDrug and device company payments (2025): $1,009Virendra Tewari, MD
✓ Accepts Medicare assignmentGraduated 1992MaleOther offices in Valhalla: 1Drug and device company payments (2025): $454
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 Valhalla
- Primary care doctors96
- Nurse practitioners90
- Cardiologists40
- Orthopedic surgeons16
- Neurologists20
- Ophthalmologists16
- Podiatrists6
- Urologists8
- Pulmonologists12
- Nephrologists12
- Endocrinologists6
- Rheumatologists3
- ENT doctors15
- Oncologists12
- Psychiatrists34
- Psychologists7
- Therapists and counselors8
- Physical therapists5
- Speech therapists17
- Audiologists14
- Gynecologists24
- General surgeons37
- Vascular surgeons6
- Physiatrists9
- Neurosurgeons10
- Infectious disease doctors8
Other care in Valhalla
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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).