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Gastroenterologists who accept Medicare in Union, NJ
CMS lists 17 clinicians in this specialty with a practice address in Union. Accept Medicare assignment (the Medicare-approved amount as full payment): 17. Offer telehealth: 6.
Typical amounts Medicare approves in ZIP 07083 (2024 Medicare rates, the latest CMS has published): a new-patient visit $145, of which you pay about $36; a follow-up visit $112, of which you pay about $28 — 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.
Pradeep S. Mahal, MD
✓ Accepts Medicare assignmentMIPS score (2024): 90/100✓ TelehealthGraduated 1969MaleOther offices in Union: 1Drug and device company payments (2025): $173Sujala Chirla, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100✓ TelehealthGraduated 2009FemaleDrug and device company payments (2025): $346Dhanasekaran Ramasamy, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100✓ TelehealthGraduated 1995MaleDrug and device company payments (2025): $621Geethan Sivananthan, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100✓ TelehealthGraduated 2009 · Rutgers New Jersey Medical SchoolMaleDrug and device company payments (2025): $337Daniel Bodek, DO
✓ Accepts Medicare assignmentMIPS score (2024): 74.5/100✓ TelehealthGraduated 2014 · University of New England, College of Osteo MedicineMaleDrug and device company payments (2025): $357Rajesh A. Dhirmalani, MD
✓ Accepts Medicare assignmentMIPS score (2024): 74.5/100Graduated 2008MaleDrug and device company payments (2025): $811Robert I. Greenblatt, MD
✓ Accepts Medicare assignmentMIPS score (2024): 74.5/100Graduated 1979 · University of Southern California Keck School of MedicineMaleDrug and device company payments (2025): $87Kunal Grover, MD
✓ Accepts Medicare assignmentMIPS score (2024): 74.5/100Graduated 2003MaleDrug and device company payments (2025): $955Michael L. Margolin, MD
✓ Accepts Medicare assignmentMIPS score (2024): 74.5/100Graduated 1982 · New York University School of MedicineMaleDrug and device company payments (2025): $874Arun R. Mathew, MD
✓ Accepts Medicare assignmentMIPS score (2024): 74.5/100Graduated 2013 · Rutgers New Jersey Medical SchoolMaleDrug and device company payments (2025): $497Prakriti S. Merchant, MD
✓ Accepts Medicare assignmentMIPS score (2024): 74.5/100Graduated 2017FemaleDrug and device company payments (2025): $209Patrick G. Tempera, MD
✓ Accepts Medicare assignmentMIPS score (2024): 74.5/100Graduated 1986MaleDrug and device company payments (2025): $419Michael J. Viksjo, MD
✓ Accepts Medicare assignmentMIPS score (2024): 74.5/100✓ TelehealthGraduated 2003MaleDrug and device company payments (2025): $949William S. Digiacomo, MD
✓ Accepts Medicare assignmentGraduated 2001MaleDrug and device company payments (2025): $1,265Christopher Lenza, MD
✓ Accepts Medicare assignmentGraduated 2003MaleJeffrey A. Shrensel, MD
✓ Accepts Medicare assignmentGraduated 2013MaleDrug and device company payments (2025): $2,172David E. Wexler, MD
✓ Accepts Medicare assignmentGraduated 1980MaleDrug and device company payments (2025): $328
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 Union
- Primary care doctors41
- Nurse practitioners58
- Cardiologists11
- Orthopedic surgeons15
- Neurologists3
- Ophthalmologists21
- Optometrists13
- Podiatrists7
- Nephrologists3
- Oncologists5
- Psychiatrists5
- Psychologists5
- Therapists and counselors15
- Physical therapists41
- Occupational therapists9
- Chiropractors14
- Gynecologists4
- Pain management doctors17
- Physiatrists11
- Neurosurgeons10
Other care in Union
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).