Kathleen Elizabeth Sonnen, PA
NPI 1215501564ActiveIndividual· Physician Assistant· Nampa, ID
Physician Assistant (PA) with Idaho Gastroenterology Associates LLP, practicing in Nampa, Idaho. Their prescriptions cost Medicare Part D more than their services did: $36,424 for 331 claims, against $14,236 paid for services in 2024. Phathom Pharmaceuticals, Inc. was the largest of 2 companies reporting payments in 2025, $31.06 in all, mostly food and beverage. Lists St Luke's Nampa Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1215501564 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | May 19, 2021 |
| Last updated in NPPES | Feb 12, 2024 |
| Certified by provider | Feb 12, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 2258 | ID |
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 (ID) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 169 |
|---|---|
| Services billed | 209 across 10 procedure codes |
| Paid by Medicare | $14,236 |
Part D prescriptions in 2024
| Prescriptions (claims) | 331 · 688 30-day fills |
|---|---|
| Patients | 107 |
| Total drug cost | $36,424 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Idaho Gastroenterology Associates LLPNampa, ID · 35 clinicians
Hospital affiliations
- St Luke's Nampa Medical CenterNampa, ID
- St Luke's Regional Medical CenterBoise, ID
Industry payments (Open Payments)
- 2025$31.06 · 2 payments from 2 companies
- 2024$55.21 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $16.07 | 1 |
| Abbvie Inc. | $14.99 | 1 |
What the 2025 payments were for
- Food and Beverage$31.06 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 96 physician assistants in Nampa · All physician assistants in Idaho