Katy Pfiffner, NP-C
NPI 1023665866ActiveIndividual· Nurse Practitioner, Family· Fort Collins, CO
Nurse Practitioner, Family (NP-C) with Colorado Allergy and Asthma Centers PC, practicing in Fort Collins, Colorado. Their prescriptions cost Medicare Part D more than their services did: $40,606 for 141 claims, against $16,582 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 13 companies reporting payments in 2025, $1,116 in all, mostly food and beverage.
Overview
| NPI | 1023665866 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP-C |
| Sole proprietor | No |
| NPI issued | Aug 26, 2019 |
| Last updated in NPPES | Sep 21, 2021 |
| Certified by provider | Sep 21, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | APN.0994952 | CO |
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 - Nurse Practitioner (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 90 |
|---|---|
| Services billed | 873 across 15 procedure codes |
| Paid by Medicare | $16,582 |
Part D prescriptions in 2024
| Prescriptions (claims) | 141 · 173 30-day fills |
|---|---|
| Patients | 36 |
| Total drug cost | $40,606 |
| Generic share | 55% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Colorado Allergy and Asthma Centers PCDenver, CO · 25 clinicians
Industry payments (Open Payments)
- 2025$1,116 · 66 payments from 13 companies
- 2024$723.40 · 34 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $274.35 | 19 |
| Glaxosmithkline, LLC. | $194.44 | 7 |
| Regeneron Healthcare Solutions, Inc. | $188.14 | 18 |
| Lilly USA, LLC | $95.20 | 4 |
| Takeda Pharmaceuticals U.S.A., Inc. | $85.67 | 3 |
What the 2025 payments were for
- Food and Beverage$1,103 · 64 payments
- Education$13.54 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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