Katherine Ann Blackwell
NPI 1942570973ActiveIndividual· Physician Assistant, Medical· Port Huron, MI
Physician Assistant, Medical with St. Clair Medical P.C, practicing in Port Huron, Michigan. Their prescriptions cost Medicare Part D more than their services did: $837,562 for 6,103 claims, against $47,997 paid for services in 2024. Otsuka America Pharmaceutical, Inc. was the largest of 14 companies reporting payments in 2025, $920.77 in all, mostly food and beverage. Lists Lake Huron Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1942570973 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jan 6, 2012 |
| Last updated in NPPES | Dec 19, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | — | — |
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 - Physician Assistant (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 204 |
|---|---|
| Services billed | 3,499 across 94 procedure codes |
| Paid by Medicare | $47,997 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,103 · 14,387 30-day fills |
|---|---|
| Patients | 622 |
| Total drug cost | $837,562 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- St. Clair Medical P.CPort Huron, MI · 9 clinicians
Hospital affiliations
- Lake Huron Medical CenterPort Huron, MI
- McLaren Port HuronPort Huron, MI
Industry payments (Open Payments)
- 2025$920.77 · 51 payments from 14 companies
- 2024$821.10 · 49 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $217.37 | 13 |
| Abbvie Inc. | $150.44 | 10 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $91.36 | 4 |
| Radius Health, Inc. | $81.62 | 4 |
| Novo Nordisk Inc | $59.48 | 3 |
What the 2025 payments were for
- Food and Beverage$920.77 · 51 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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