Terrence Patrick Brennan, M.D.
NPI 1366418667ActiveIndividual· Internal Medicine· Warren, MI
Internal Medicine (M.D.) in Warren, Michigan, licensed in MI, with an NPI issued in February 2006. Their prescriptions cost Medicare Part D more than their services did: $343,768 for 5,358 claims, against $66,307 paid for services in 2024. Grifols USA, LLC was the largest of 4 companies reporting payments in 2024, $120.19 in all, mostly food and beverage.
Overview
| NPI | 1366418667 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 27, 2006 |
| Last updated in NPPES | Jan 5, 2023 |
| Certified by provider | Jan 5, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 4301037453 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 202 |
|---|---|
| Services billed | 1,110 across 28 procedure codes |
| Paid by Medicare | $66,307 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,358 · 13,978 30-day fills |
|---|---|
| Patients | 365 |
| Total drug cost | $343,768 |
| Generic share | 92% of claims |
Industry payments (Open Payments)
- 2024$120.19 · 6 payments from 4 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Grifols USA, LLC | $40.03 | 2 |
| Glaxosmithkline, LLC. | $35.78 | 2 |
| Mylan Specialty L.P. | $23.93 | 1 |
| Genzyme Corporation | $20.45 | 1 |
What the 2024 payments were for
- Food and Beverage$120.19 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 135 internal medicine physicians in Warren · All internal medicine physicians in Michigan