Timothy Adam Callahan, P.A.C.
NPI 1427064799ActiveIndividual· Physician Assistant, Medical· Sunnyside, UT
Physician Assistant, Medical (P.A.C.) with Carbon Medical Service Association, Incorporated, practicing in Sunnyside, Utah. Their prescriptions cost Medicare Part D more than their services did: $502,546 for 6,161 claims, against $11,351 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 8 companies reporting payments in 2025, $349.93 in all, mostly food and beverage. Lists Castleview Hospital as a hospital affiliation.
Overview
| NPI | 1427064799 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A.C. |
| Sole proprietor | No |
| NPI issued | Jul 31, 2006 |
| Last updated in NPPES | Mar 31, 2025 |
| Certified by provider | Mar 31, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | 314106-1206 | UT |
| Physician Assistant, Medical | 363AM0700X | 314106-8906 | UT |
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 (UT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 151 |
|---|---|
| Services billed | 419 across 37 procedure codes |
| Paid by Medicare | $11,351 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,161 · 10,939 30-day fills |
|---|---|
| Patients | 321 |
| Total drug cost | $502,546 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Carbon Medical Service Association, IncorporatedHelper, UT · 16 clinicians
Hospital affiliation
- Castleview HospitalPrice, UT
Other facilities
- Community Nursing ServicesHome health agency · West Valley City, UT
- Rocky Mountain Home Health - UtahHome health agency · Woods Cross, UT
- Symbii Home Health SouthHome health agency · Murray, UT
Industry payments (Open Payments)
- 2025$349.93 · 17 payments from 8 companies
- 2024$258.87 · 15 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $137.19 | 7 |
| Abbvie Inc. | $64.28 | 3 |
| Amgen Inc. | $37.29 | 2 |
| Neurocrine Biosciences, Inc. | $25.93 | 1 |
| Viatris Specialty LLC | $24.89 | 1 |
What the 2025 payments were for
- Food and Beverage$349.93 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records