Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Dieumy Thai, MD

Individual provider Physical Medicine & Rehabilitation Physician · NPI 1639270275

Dr. Dieumy Thai, MD is registered under Physical Medicine and Rehabilitation in Westminster, California. Graduated from University of California, Davis School of Medicine in 1987, 39 years ago. Practices with Dieumy Michelle Thai M D Inc, a 4-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
39
Trained at
University of California, Davis School of Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

16401 Magnolia St
Westminster, CA 92683-7827 Not confirmed with CMS for 16 years — call before visiting
Phone: (714) 596-4288
Fax: (714) 596-2388
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pain Medicine (Physical Medicine & Rehabilitation) Physician (primary) Taxonomy 2081P2900X · Licence G64401 (CA)
Physical Medicine & Rehabilitation Physician Taxonomy 208100000X · Licence G64401 (CA)
Spinal Cord Injury Medicine Physician Taxonomy 2081P0004X · Licence G64401 (CA)

Record details

NPI number1639270275
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 26, 2006
Last updated in NPPESFebruary 17, 2010

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolUNIVERSITY OF CALIFORNIA, DAVIS SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
Group practice Dieumy Michelle Thai M D Inc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients240
Services billed 3,692 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Providence St. Jude Medical Center Hospital · Fullerton, CA
  • Uci Health-Orange Hospital · Orange, CA

Colleagues at Dieumy Michelle Thai M D Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 4 clinicians in the practice; 2 are shown here.

Other providers in Westminster