Quick answers
- Which hospitals does Peter Peifer work at?
- Medicare's official clinician data lists Peter Peifer at 1 hospital: Columbia Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Peter Peifer see patients?
- Medicare's clinician data lists 8 practice locations, including Warrenton, OR, Scottsdale, AZ and Tempe, AZ. Call before your visit to confirm the address.
- What is Peter Peifer's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Peter Peifer accept Medicare assignment?
- Yes. Medicare's clinician data says Peter Peifer 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 Peter Peifer?
- (503) 338-4500, as listed in official Medicare / NPI Registry data.
- What is Peter Peifer's NPI number?
- 1093719577. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Peter Peifer works
Medicare's Facility Affiliation Data lists Peter Peifer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Columbia Memorial HospitalAstoria, OR · Critical Access Hospital · CCN 381320
Practice locations
Addresses where Peter Peifer is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 1639 SE Ensign LnWarrenton, OR 97146 (503) 338‑4500
- 1639 SE Ensign Ln, Suite B103Warrenton, OR 97146 (503) 338‑4500
- 2122 N Scottsdale RdScottsdale, AZ 85257 (480) 889‑3570
- 2145 E Baseline RdTempe, AZ 85283 (480) 704‑4411
- 535 E McKellips Rd, Suite 101Mesa, AZ 85203 (480) 844‑7400
Group practices
Medicare enrollment lists Peter Peifer as a member of these groups (CMS data updated 2026-10-02).
- Nextcare Arizona I JV LLC287 clinicians in the group
- Columbia Lutheran Charities106 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Warrenton
Clinicians with the same Medicare primary specialty in Warrenton, OR — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093719577 |
| 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