Michael L. Zager, MD
NPI 1326087362ActiveIndividual· Internal Medicine· Allentown, PA
Internal Medicine (MD) with Phoenix Rehabilitation and Health Services Inc and 1 other group, practicing in Allentown, Pennsylvania. Their prescriptions cost Medicare Part D more than their services did: $834,892 for 7,864 claims, against $141,782 paid for services in 2024. Novo Nordisk Inc was the largest of 2 companies reporting payments in 2025, $145.93 in all, mostly food and beverage. Lists Lehigh Valley Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1326087362 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 5, 2006 |
| Last updated in NPPES | Mar 3, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD052741L | PA |
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 - Internal Medicine (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 628 |
|---|---|
| Services billed | 2,047 across 44 procedure codes |
| Paid by Medicare | $141,782 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,864 · 17,201 30-day fills |
|---|---|
| Patients | 550 |
| Total drug cost | $834,892 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Phoenix Rehabilitation and Health Services IncCranberry Twp, PA · 2,800 clinicians
- Lehigh Valley Physician GroupAllentown, PA · 2,542 clinicians
Hospital affiliations
- Lehigh Valley HospitalAllentown, PA
- Schuylkill Medical Center - South Jackson StreetPottsville, PA
- St Lukes HospitalBethlehem, PA
Other facilities
- Bayada Home Health Care, Inc.Home health agency · Allentown, PA
- Lehigh Valley Home CareHome health agency · Allentown, PA
- Good Shepherd Rehabilitation Hospital, theInpatient rehabilitation facility · Center Valley, PA
Industry payments (Open Payments)
- 2025$145.93 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $124.74 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $21.19 | 1 |
What the 2025 payments were for
- Food and Beverage$145.93 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Allentown
- 1083622872
- 1083665087
- 1144476672
- 1184005654
- 1245282094
- 1255354866
- 1255652525
- 1265815500
- 1285015123
- 1356333744
- 1396059317
- 1437685153
All 251 internal medicine physicians in Allentown · All internal medicine physicians in Pennsylvania