Tisa K. Testai, D.O.
NPI 1134169766ActiveIndividual· Internal Medicine· Rochester Hills, MI
Internal Medicine (D.O.) in Rochester Hills, Michigan, trained at Michigan State University College of Osteopathic Medicine (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $423,335 for 6,559 claims, against $106,916 paid for services in 2024. Novo Nordisk Inc was the largest of 7 companies reporting payments in 2025, $231.99 in all, mostly food and beverage.
Overview
| NPI | 1134169766 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jun 8, 2006 |
| Last updated in NPPES | Sep 12, 2023 |
| Certified by provider | Sep 12, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 5101011081 | 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 | 267 |
|---|---|
| Services billed | 1,784 across 55 procedure codes |
| Paid by Medicare | $106,916 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,559 · 12,637 30-day fills |
|---|---|
| Patients | 433 |
| Total drug cost | $423,335 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Internal Medicine |
Medical group
- Michigan Healthcare Professionals PCClarkston, MI · 529 clinicians
Hospital affiliations
- Ascension Providence Rochester HospitalRochester, MI
- Beaumont Hospital Royal OakRoyal Oak, MI
- Beaumont Hospital, TroyTroy, MI
Industry payments (Open Payments)
- 2025$231.99 · 12 payments from 7 companies
- 2024$181.66 · 10 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $84.63 | 4 |
| Abiomed | $39.35 | 2 |
| Pfizer Inc. | $36.66 | 2 |
| Exact Sciences Corporation | $20.80 | 1 |
| Abbvie Inc. | $18.48 | 1 |
What the 2025 payments were for
- Food and Beverage$231.99 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 101 internal medicine physicians in Rochester Hills · All internal medicine physicians in Michigan