McKenna Marie Spillar, PA-C
NPI 1114651924ActiveIndividual· Physician Assistant· Casper, WY
Physician Assistant (PA-C) with Gastroenterology Associates, LLC, practicing in Casper, Wyoming. Their prescriptions cost Medicare Part D more than their services did: $5,902 for 36 claims, against $3,271 paid for services in 2024. Takeda Pharmaceuticals U.S.A., Inc. was the largest of 13 companies reporting payments in 2025, $954.55 in all, mostly food and beverage. Lists Banner Wyoming Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1114651924 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jul 16, 2022 |
| Last updated in NPPES | Oct 1, 2026 |
| Certified by provider | Oct 1, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA1253 | WY |
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 (WY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 47 |
|---|---|
| Services billed | 47 across 6 procedure codes |
| Paid by Medicare | $3,271 |
Part D prescriptions in 2024
| Prescriptions (claims) | 36 · 60 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $5,902 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2024 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Gastroenterology Associates, LLCCasper, WY · 13 clinicians
Hospital affiliations
- Banner Wyoming Medical CenterCasper, WY
- Hot Springs County Memorial HospitalThermopolis, WY
- Ivinson Memorial HospitalLaramie, WY
- Memorial Hospital of Converse CountyDouglas, WY
- Platte County HospitalWheatland, WY
Industry payments (Open Payments)
- 2025$954.55 · 40 payments from 13 companies
- 2024$332.95 · 11 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $311.75 | 11 |
| Abbvie Inc. | $198.15 | 12 |
| Janssen Biotech, Inc. | $92.44 | 4 |
| Phathom Pharmaceuticals, Inc. | $89.99 | 2 |
| Enterra Medical, Inc. | $77.97 | 1 |
What the 2025 payments were for
- Food and Beverage$954.55 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 63 physician assistants in Casper · All physician assistants in Wyoming