Quick answers
- Which hospitals does Ria Thomas work at?
- Medicare's official clinician data lists Ria Thomas at 5 hospitals: Ascension Providence Rochester Hospital, Beaumont Hospital Royal Oak, Beaumont Hospital, Troy, Edward W Sparrow Hospital and Trinity Health Oakland Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ria Thomas see patients?
- Medicare's clinician data lists 2 practice locations, including Rochester Hills, MI and Okemos, MI. Call before your visit to confirm the address.
- What is Ria Thomas's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Ria Thomas accept Medicare assignment?
- Yes. Medicare's clinician data says Ria Thomas 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 Ria Thomas?
- (249) 852-2277, as listed in official Medicare / NPI Registry data.
- What is Ria Thomas's NPI number?
- 1982425203. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ria Thomas works
Medicare's Facility Affiliation Data lists Ria Thomas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension Providence Rochester HospitalRochester, MI · Acute Care Hospital · CCN 230254
- Beaumont Hospital Royal OakRoyal Oak, MI · Acute Care Hospital · CCN 230130
- Beaumont Hospital, TroyTroy, MI · Acute Care Hospital · CCN 230269
- Edward W Sparrow HospitalLansing, MI · Acute Care Hospital · CCN 230230
- Trinity Health Oakland HospitalPontiac, MI · Acute Care Hospital · CCN 230029
Practice locations
Addresses where Ria Thomas is enrolled with Medicare (CMS data updated 2026-10-02).
- 135 Barclay Cir, Suite 100Rochester Hills, MI 48307 (249) 852‑2277
- 4111 Okemos Rd, Suite 103Okemos, MI 48864 (517) 993‑6366
Group practices
Medicare enrollment lists Ria Thomas as a member of this group (CMS data updated 2026-10-02).
- American Arthritis and Rheumatology Associates -Mi PLLC12 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Rochester Hills
Clinicians with the same Medicare primary specialty in Rochester Hills, MI — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1982425203 |
| 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