Richard A. Zirin, M.D.
NPI 1548267883ActiveIndividual· Internal Medicine, Gastroenterology· Newburyport, MA
Internal Medicine, Gastroenterology (M.D.) in Newburyport, Massachusetts, trained at Boston University School of Medicine (class of 1978). Their prescriptions cost Medicare Part D more than their services did: $152,938 for 459 claims, against $36,404 paid for services in 2024. Salix Pharmaceuticals, A Division of Bausch Health US, LLC was the largest of 6 companies reporting payments in 2025, $250.35 in all, mostly food and beverage.
Overview
| NPI | 1548267883 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 1, 2005 |
| Last updated in NPPES | Jun 16, 2021 |
| Certified by provider | Jun 16, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 52040 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 219 |
|---|---|
| Services billed | 286 across 26 procedure codes |
| Paid by Medicare | $36,404 |
Part D prescriptions in 2024
| Prescriptions (claims) | 459 · 1,011 30-day fills |
|---|---|
| Patients | 131 |
| Total drug cost | $152,938 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 1978 |
| Medicare specialty | Gastroenterology |
Medical group
- Seacoast Affiliated Group Practice IncNewburyport, MA · 50 clinicians
Hospital affiliation
- Anna Jaques HospitalNewburyport, MA
Industry payments (Open Payments)
- 2025$250.35 · 7 payments from 6 companies
- 2024$204.69 · 8 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $140.83 | 2 |
| Madrigal Pharmaceuticals | $28.29 | 1 |
| Novo Nordisk Inc | $24.37 | 1 |
| Lilly USA, LLC | $20.89 | 1 |
| Qol Medical, LLC | $18.14 | 1 |
What the 2025 payments were for
- Food and Beverage$250.35 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Newburyport
- 1477557106
- 1437157369
- 1427051366