Erwin J. Oei, MD
NPI 1659373421ActiveIndividual· Internal Medicine, Pulmonary Disease· Summit, NJ
Internal Medicine, Pulmonary Disease (MD) in Summit, New Jersey, trained at Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $2,397,963 for 3,617 claims, against $210,011 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 17 companies reporting payments in 2025, $1,630 in all, mostly food and beverage.
Overview
| NPI | 1659373421 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 11, 2005 |
| Last updated in NPPES | Feb 3, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 25MA07010700 | NJ |
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 - Pulmonary Disease (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,000 |
|---|---|
| Services billed | 3,101 across 27 procedure codes |
| Paid by Medicare | $210,011 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,617 · 5,085 30-day fills |
|---|---|
| Patients | 704 |
| Total drug cost | $2,397,963 |
Education and affiliations
| Medical school | Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Pulmonary Disease |
| Telehealth | Offers telehealth |
Medical group
- Practice Associates Medical GroupSummit, NJ · 1,408 clinicians
Hospital affiliations
- Ahs Hospital CorpHackettstown, NJ
- Chilton Medical CenterPompton Plains, NJ
- Morristown Medical CenterMorristown, NJ
- Newton Medical CenterNewton, NJ
- Overlook Medical CenterSummit, NJ
Industry payments (Open Payments)
- 2025$1,630 · 127 payments from 17 companies
- 2024$981.87 · 74 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $563.35 | 49 |
| Astrazeneca Pharmaceuticals LP | $379.48 | 39 |
| Grifols USA, LLC | $106.29 | 6 |
| Viatris Specialty LLC | $91.77 | 5 |
| Takeda Pharmaceuticals U.S.A., Inc. | $90.61 | 5 |
What the 2025 payments were for
- Food and Beverage$1,596 · 126 payments
- Education$34.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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