Quick answers
- Which hospitals does Patrick A. Armstrong work at?
- Medicare's official clinician data lists Patrick A. Armstrong at 1 hospital: Palomar Health Downtown Campus. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Patrick A. Armstrong see patients?
- Medicare's clinician data lists 1 practice location in Poway, CA. Call before your visit to confirm the address.
- What is Patrick A. Armstrong's specialty?
- Medicare lists Dermatology as the primary specialty.
- Does Patrick A. Armstrong accept Medicare assignment?
- Yes. Medicare's clinician data says Patrick A. Armstrong accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Patrick A. Armstrong?
- (858) 675-3100, as listed in official Medicare / NPI Registry data.
- What is Patrick A. Armstrong's NPI number?
- 1588008775. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Patrick A. Armstrong works
Medicare's Facility Affiliation Data lists Patrick A. Armstrong at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Palomar Health Downtown CampusEscondido, CA · Acute Care Hospital · CCN 050115
Practice locations
Addresses where Patrick A. Armstrong is enrolled with Medicare (CMS data updated 2026-10-02).
- 15611 Pomerado RdPoway, CA 92064 (858) 675‑3100
Group practices
Medicare enrollment lists Patrick A. Armstrong as a member of this group (CMS data updated 2026-10-02).
- Arch Health Partners Inc145 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Poway
Clinicians with the same Medicare primary specialty in Poway, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical Branch At Galveston |
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588008775 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians