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RIA THOMAS
NPI 1982425203
Physician Assistant in Okemos, MI

Active since October 19, 2024PECOS Enrolled
4111 OKEMOS RD STE 103, OKEMOS, MI 48864(517) 993-6366(517) 483-2350 Get Directions Write a Review

NPPES record last updated: February 24, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Ria Thomas NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RIA THOMAS (NPI 1982425203) is an individual physician assistant in Okemos, Michigan and active in the NPI registry since October 2024. She is enrolled in Medicare PECOS, is affiliated with Trinity Health Oakland Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1982425203
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameRIA THOMAS
Location Address4111 OKEMOS RD STE 103Okemos, MI 48864-3235
Mailing Address4111 Okemos Rd Ste 103Okemos, MI 48864-3235 · (517) 993-6366 · Fax (517) 483-2350
Phone(517) 993-6366
Fax(517) 483-2350
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateOctober 19, 2024
Last NPPES UpdateFebruary 24, 2026
NPPES CertifiedFebruary 24, 2026
✔ NPI 1982425203 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
4111 OKEMOS RD STE 103, Okemos, MI 48864
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Secondary Practice Locations 2

Location 139242 Dequindre Rd Ste 103Sterling Heights, MI 48310-1764 · Phone (248) 852-2277 · Fax (248) 852-2552
Location 2135 Barclay Cir Ste 100Rochester Hills, MI 48307-4599 · Phone (248) 852-2277 · Fax (248) 852-2552

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ria Thomas is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2365932746
PECOS Enrollment IDI20251104004291
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Trinity Health Oakland Hospital

Acute Care Hospitals · Pontiac, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230029
Location44405 Woodward AvePontiac, MI 48341 · Oakland County
Emergency services Birthing friendly

Edward W Sparrow Hospital

Acute Care Hospitals · Lansing, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number230230
Location1215 E Michigan AvenueLansing, MI 48912 · Ingham County
Emergency services Birthing friendly

Beaumont Hospital, Troy

Acute Care Hospitals · Troy, MI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230269
Location44201 Dequindre RoadTroy, MI 48085 · Oakland County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48864 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$68.07 typical visit price
range $17.09 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ria Thomas's NPI number?

The NPI number for Ria Thomas is 1982425203. It was assigned to this individual provider in the NPPES registry on October 19, 2024.

Where is Ria Thomas located?

Ria Thomas practices at 4111 Okemos Rd Ste 103, Okemos, MI 48864. The listed phone number is (517) 993-6366.

What is Ria Thomas's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Ria Thomas enrolled in Medicare?

Yes. Ria Thomas is registered in the Medicare PECOS enrollment system.

Is Ria Thomas affiliated with any hospitals?

According to CMS data, Ria Thomas is affiliated with Trinity Health Oakland Hospital, Edward W Sparrow Hospital and Beaumont Hospital, Troy.

When was this NPI record last updated?

The NPPES record for Ria Thomas was last updated on February 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.