Janet Ttheresa Guisinger, M.D.
NPI 1295773208ActiveIndividual· Family Medicine· Bay City, MI
Family Medicine (M.D.) in Bay City, Michigan, licensed in MI, with an NPI issued in June 2006. Their prescriptions cost Medicare Part D more than their services did: $1,078,392 for 7,080 claims, against $28,650 paid for services in 2024. Abbvie Inc. was the largest of 14 companies reporting payments in 2025, $1,190 in all, mostly food and beverage. Lists Covenant Medical Center as a hospital affiliation.
Overview
| NPI | 1295773208 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 2, 2006 |
| Last updated in NPPES | Oct 8, 2026 |
| Certified by provider | Oct 8, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 4301064424 | 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 - Family Practice (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 96 |
|---|---|
| Services billed | 528 across 29 procedure codes |
| Paid by Medicare | $28,650 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,080 · 15,810 30-day fills |
|---|---|
| Patients | 329 |
| Total drug cost | $1,078,392 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Family Practice |
Hospital affiliation
- Covenant Medical CenterSaginaw, MI
Industry payments (Open Payments)
- 2025$1,190 · 59 payments from 14 companies
- 2024$1,364 · 88 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $336.74 | 15 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $183.65 | 11 |
| Astrazeneca Pharmaceuticals LP | $174.53 | 11 |
| Lilly USA, LLC | $170.27 | 8 |
| Axsome Therapeutics, Inc. | $86.13 | 1 |
What the 2025 payments were for
- Food and Beverage$1,190 · 59 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 50 family medicine physicians in Bay City · All family medicine physicians in Michigan