Patrick Andrew Armstrong, M.D.
NPI 1588008775ActiveIndividual· Dermatology· Poway, CA
Dermatology (M.D.) in Poway, California, trained at University of Texas Medical Branch at Galveston (class of 2013). 419 Medicare patients in 2024, $148,212 paid; nearly all of their 772 Part D prescriptions were generic (94%). Pfizer Inc. was the largest of 15 companies reporting payments in 2025, $1,350 in all, mostly food and beverage.
Overview
| NPI | 1588008775 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 18, 2013 |
| Last updated in NPPES | Mar 24, 2023 |
| Certified by provider | Mar 24, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | A137103 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | BP10045786 | TX |
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 - Dermatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 419 |
|---|---|
| Services billed | 3,000 across 63 procedure codes |
| Paid by Medicare | $148,212 |
Part D prescriptions in 2024
| Prescriptions (claims) | 772 · 1,006 30-day fills |
|---|---|
| Patients | 306 |
| Total drug cost | $172,374 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Texas Medical Branch at Galveston |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Dermatology |
Medical group
- Arch Health Partners IncPoway, CA · 145 clinicians
Hospital affiliation
- Palomar Health Downtown CampusEscondido, CA
Industry payments (Open Payments)
- 2025$1,350 · 60 payments from 15 companies
- 2024$1,381 · 63 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $250.34 | 11 |
| Regeneron Healthcare Solutions, Inc. | $177.36 | 7 |
| Janssen Biotech, Inc. | $155.09 | 9 |
| Abbvie Inc. | $153.29 | 6 |
| Amgen Inc. | $88.57 | 5 |
What the 2025 payments were for
- Food and Beverage$1,350 · 60 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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