Michael Joseph Viksjo, MD
NPI 1508028770ActiveIndividual· Internal Medicine, Gastroenterology· Union, NJ
Internal Medicine, Gastroenterology (MD) with Barnabas Health Medical Group PC and 1 other group, practicing in Union, New Jersey. Their prescriptions cost Medicare Part D more than their services did: $351,486 for 1,054 claims, against $43,648 paid for services in 2024. Pfizer Inc. was the largest of 16 companies reporting payments in 2025, $949.17 in all, mostly food and beverage. Lists Overlook Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1508028770 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 30, 2008 |
| Last updated in NPPES | Feb 17, 2023 |
| Certified by provider | Feb 17, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 25MA08505500 | NJ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 181 |
|---|---|
| Services billed | 737 across 39 procedure codes |
| Paid by Medicare | $43,648 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,054 · 1,824 30-day fills |
|---|---|
| Patients | 323 |
| Total drug cost | $351,486 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Barnabas Health Medical Group PCNewark, NJ · 1,070 clinicians
- Rf Ledon MD PCUnion, NJ · 18 clinicians
Hospital affiliations
- Overlook Medical CenterSummit, NJ
- Trinitas Regional Medical CenterElizabeth, NJ
Industry payments (Open Payments)
- 2025$949.17 · 53 payments from 16 companies
- 2024$976.52 · 55 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $144.62 | 8 |
| Ardelyx, Inc. | $124.37 | 7 |
| Takeda Pharmaceuticals U.S.A., Inc. | $123.16 | 7 |
| Aimmune Therapeutics, Inc. | $91.99 | 5 |
| Janssen Biotech, Inc. | $76.49 | 4 |
What the 2025 payments were for
- Food and Beverage$949.17 · 53 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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