Erik Wamsteker, MD
NPI 1255416863ActiveIndividual· Internal Medicine, Gastroenterology· Ann Arbor, MI
Internal Medicine, Gastroenterology (MD) in Ann Arbor, Michigan, trained at Rutgers New Jersey Medical School (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $466,434 for 382 claims, against $79,659 paid for services in 2024. Exact Sciences Corporation reported $37.12 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1255416863 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 25, 2006 |
| Last updated in NPPES | May 28, 2024 |
| Certified by provider | May 28, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 4301067939 | MI |
| Internal Medicine | 207R00000X | 4301067939 | MI |
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 (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 255 |
|---|---|
| Services billed | 682 across 51 procedure codes |
| Paid by Medicare | $79,659 |
Part D prescriptions in 2024
| Prescriptions (claims) | 382 · 734 30-day fills |
|---|---|
| Patients | 159 |
| Total drug cost | $466,434 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Rutgers New Jersey Medical School |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Regents of the University of MichiganAnn Arbor, MI · 3,346 clinicians
Hospital affiliation
- University of Michigan Health SystemAnn Arbor, MI
Industry payments (Open Payments)
- 2024$37.12 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $37.12 | 1 |
What the 2024 payments were for
- Food and Beverage$37.12 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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