Karen A. Thornburg, MD
NPI 1003938119ActiveIndividual· Internal Medicine· Muskegon, MI
Internal Medicine (MD) with Hackley Community Care Center Inc, practicing in Muskegon, Michigan. Their prescriptions cost Medicare Part D more than their services did: $849,728 for 6,766 claims, against $1,499 paid for services in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $74.37 in all, mostly food and beverage. Lists Trinity Health Muskegon Hospital as a hospital affiliation.
Overview
| NPI | 1003938119 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 6, 2007 |
| Last updated in NPPES | Jan 2, 2022 |
| Certified by provider | Jan 2, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 4301087767 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 60 |
|---|---|
| Services billed | 150 across 12 procedure codes |
| Paid by Medicare | $1,499 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,766 · 13,738 30-day fills |
|---|---|
| Patients | 379 |
| Total drug cost | $849,728 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Hackley Community Care Center IncMuskegon, MI · 18 clinicians
Hospital affiliation
- Trinity Health Muskegon HospitalMuskegon, MI
Other facilities
- Trinity Health at Home - MuskegonHome health agency · Muskegon, MI
Industry payments (Open Payments)
- 2025$74.37 · 5 payments from 2 companies
- 2024$106.78 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $46.64 | 3 |
| Supernus Pharmaceuticals, Inc. | $27.73 | 2 |
What the 2025 payments were for
- Food and Beverage$74.37 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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