Kristine M. Larsen, PAC
NPI 1477531150ActiveIndividual· Physician Assistant· Downers Grove, IL
Physician Assistant (PAC) with University Head and Neck Associates SC, practicing in Downers Grove, Illinois. Their prescriptions cost Medicare Part D more than their services did: $143,822 for 339 claims, against $38,189 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 3 companies reporting payments in 2025, $67.49 in all, mostly food and beverage.
Overview
| NPI | 1477531150 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PAC |
| Sole proprietor | No |
| NPI issued | Jan 4, 2006 |
| Last updated in NPPES | Dec 7, 2021 |
| Certified by provider | Dec 7, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 085.000355 | IL |
| Otolaryngology | 207Y00000X | 085.000355 | IL |
| Physician Assistant, Medical | 363AM0700X | 085000355 | IL |
| Physician Assistant, Surgical | 363AS0400X | 085000355 | IL |
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 (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 163 |
|---|---|
| Services billed | 474 across 12 procedure codes |
| Paid by Medicare | $38,189 |
Part D prescriptions in 2024
| Prescriptions (claims) | 339 · 480 30-day fills |
|---|---|
| Patients | 130 |
| Total drug cost | $143,822 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- University Head and Neck Associates SCTinley Park, IL · 6 clinicians
Industry payments (Open Payments)
- 2025$67.49 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $37.97 | 2 |
| Genzyme Corporation | $15.71 | 1 |
| Regeneron Healthcare Solutions, Inc. | $13.81 | 1 |
What the 2025 payments were for
- Food and Beverage$67.49 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 58 physician assistants in Downers Grove · All physician assistants in Illinois