Alexandria L. Gassmann, PA-C
NPI 1639633779ActiveIndividual· Physician Assistant· Aurora, CO
Opted out of Medicare from October 2024 to October 2028. Physician Assistant (PA-C) in Aurora, Colorado, licensed in CO, with an NPI issued in January 2019. Their prescriptions cost Medicare Part D more than their services did: $219,948 for 2,002 claims, against $5,040 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 24 companies reporting payments in 2025, $1,875 in all, mostly food and beverage.
Overview
| NPI | 1639633779 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jan 23, 2019 |
| Last updated in NPPES | Dec 17, 2020 |
| Certified by provider | Dec 17, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA.0005681 | CO |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Oct 1, 2024 – Oct 1, 2028 |
| Can order and refer | Yes |
| Accepts assignment | Yes (participating) |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Medicare services in 2024
| Medicare patients | 45 |
|---|---|
| Services billed | 138 across 18 procedure codes |
| Paid by Medicare | $5,040 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,002 · 4,730 30-day fills |
|---|---|
| Patients | 344 |
| Total drug cost | $219,948 |
| Generic share | 85% of claims |
Industry payments (Open Payments)
- 2025$1,875 · 80 payments from 24 companies
- 2024$1,451 · 65 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $308.34 | 11 |
| Abbvie Inc. | $285.13 | 8 |
| Lilly USA, LLC | $218.22 | 10 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $109.86 | 4 |
| Pfizer Inc. | $101.41 | 4 |
What the 2025 payments were for
- Food and Beverage$1,875 · 80 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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