Abbie Lyn Siebenhaar, PAC
NPI 1295003234ActiveIndividual· Physician Assistant, Medical· Salt Lake City, UT
Physician Assistant, Medical (PAC) with Utah Gastroenterology LLC, practicing in Salt Lake City, Utah. Their prescriptions cost Medicare Part D more than their services did: $1,196,287 for 1,596 claims, against $19,051 paid for services in 2024. Abbvie Inc. was the largest of 17 companies reporting payments in 2025, $1,277 in all, mostly food and beverage. Lists Intermountain Health Riverton Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1295003234 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PAC |
| Sole proprietor | Yes |
| NPI issued | Dec 5, 2011 |
| Last updated in NPPES | Oct 14, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | 9505091-1206 | UT |
| Physician Assistant | 363A00000X | 9505091-1206 | UT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 288 |
|---|---|
| Services billed | 334 across 10 procedure codes |
| Paid by Medicare | $19,051 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,596 · 3,352 30-day fills |
|---|---|
| Patients | 441 |
| Total drug cost | $1,196,287 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Utah Gastroenterology LLCSt George, UT · 69 clinicians
Hospital affiliations
- Intermountain Health Riverton HospitalRiverton, UT
- Intermountain Medical CenterMurray, UT
- Lakeview HospitalBountiful, UT
- St Mark's HospitalSalt Lake City, UT
- University of Utah Hospital and ClinicsSalt Lake City, UT
Industry payments (Open Payments)
- 2025$1,277 · 81 payments from 17 companies
- 2024$1,433 · 90 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $302.97 | 23 |
| Janssen Biotech, Inc. | $297.61 | 22 |
| Takeda Pharmaceuticals U.S.A., Inc. | $98.99 | 4 |
| Celltrion USA Inc. | $74.52 | 4 |
| Ipsen Biopharmaceuticals, Inc | $62.03 | 3 |
What the 2025 payments were for
- Food and Beverage$1,277 · 81 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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