Jacob Nathaniel Hirsch, DO
NPI 1063953099ActiveIndividual· Internal Medicine· Ann Arbor, MI
Internal Medicine (DO) with Regents of the University of Michigan, practicing in Ann Arbor, Michigan. Their prescriptions cost Medicare Part D more than their services did: $183,747 for 3,147 claims, against $9,482 paid for services in 2024. Rgh Enterprises LLC reported $19.19 in payments in 2025, mostly food and beverage. Lists University of Michigan Health System as a hospital affiliation.
Overview
| NPI | 1063953099 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 9, 2017 |
| Last updated in NPPES | Sep 3, 2026 |
| Certified by provider | Sep 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | OP70094288 | WA |
| Internal Medicine | 207R00000X | 5101027280 | 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 - Internal Medicine (MI); Practitioner - Internal Medicine (OH); Practitioner - Internal Medicine (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 42 |
|---|---|
| Services billed | 112 across 7 procedure codes |
| Paid by Medicare | $9,482 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,147 · 6,772 30-day fills |
|---|---|
| Patients | 400 |
| Total drug cost | $183,747 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Internal Medicine |
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)
- 2025$19.19 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Rgh Enterprises LLC | $19.19 | 1 |
What the 2025 payments were for
- Food and Beverage$19.19 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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