Mary L. Udseth, PA-C
NPI 1922400720ActiveIndividual· Physician Assistant· Eldersburg, MD
Physician Assistant (PA-C) with Carroll Primary Care, PA, practicing in Eldersburg, Maryland. Their prescriptions cost Medicare Part D more than their services did: $510,921 for 4,652 claims, against $4,208 paid for services in 2024. Pfizer Inc. was the largest of 19 companies reporting payments in 2025, $1,717 in all, mostly food and beverage.
Overview
| NPI | 1922400720 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Sep 23, 2014 |
| Last updated in NPPES | Sep 23, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | C0005506 | MD |
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 (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 14 |
|---|---|
| Services billed | 203 across 10 procedure codes |
| Paid by Medicare | $4,208 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,652 · 11,683 30-day fills |
|---|---|
| Patients | 466 |
| Total drug cost | $510,921 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Carroll Primary Care, PAWestminster, MD · 7 clinicians
Other facilities
- Bayada Home Health Care, Inc.Home health agency · Towson, MD
- Home CallHome health agency · Westminster, MD
Industry payments (Open Payments)
- 2025$1,717 · 93 payments from 19 companies
- 2024$1,588 · 97 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $254.69 | 17 |
| Abbvie Inc. | $205.98 | 19 |
| Novo Nordisk Inc | $192.53 | 9 |
| Astellas Pharma US Inc | $147.13 | 6 |
| Amgen Inc. | $136.29 | 9 |
What the 2025 payments were for
- Food and Beverage$1,717 · 93 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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