Quick answers
- Where does Antonio E. Frias see patients?
- Medicare's clinician data lists 2 practice locations, including Beaverton, OR and Portland, OR. Call before your visit to confirm the address.
- What is Antonio E. Frias's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Antonio E. Frias accept Medicare assignment?
- Yes. Medicare's clinician data says Antonio E. Frias 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 Antonio E. Frias?
- (503) 494-8311, as listed in official Medicare / NPI Registry data.
- What is Antonio E. Frias's NPI number?
- 1033130299. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Antonio E. Frias is enrolled with Medicare (CMS data updated 2026-10-02).
- 15700 SW Greystone CtBeaverton, OR 97006
- 3181 SW Sam Jackson Park RdPortland, OR 97239 (503) 494‑8311
Group practices
Medicare enrollment lists Antonio E. Frias as a member of this group (CMS data updated 2026-10-02).
- University Professional Services1,724 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Beaverton
Clinicians with the same Medicare primary specialty in Beaverton, OR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Mayo Medical School |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1033130299 |
| 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
- 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