NPPES file of Aug 9, 2026

Dieumy Thai, M.D.

Pain Medicine (Physical Medicine & Rehabilitation) Physician · Westminster, CA

Dieumy Thai, M.D. is a pain medicine (physical medicine & rehabilitation) physician with a practice address in Westminster, California, and NPI 1639270275, issued on Sep 26, 2006. Check the license (California G64401, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639270275
Name
Dieumy Thai
Credential
M.D.
Primary taxonomy
Pain Medicine (Physical Medicine & Rehabilitation) Physician 2081P2900X
License number
G64401 CA
Self-reported in NPPES; status is on the state search
Practice location
16401 Magnolia St, Westminster, CA 92683
Phone
(714) 596-4288
Enumerated
Sep 26, 2006
Record last updated
Feb 17, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(714) 596-2388
Medicaid ID
00G644010 CA
Medicare enrollment
Enrolled (PECOS I20101102001251); accepts Medicare assignment
Medical or professional school
University Of California, Davis School Of Medicine, 1987
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 16401 Magnolia St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Roland FontanaresPhysical Therapist1063691079

Verify Dieumy Thai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G64401
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. Dieumy Michelle Thai M D IncWestminster, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dieumy Thai among 290 pain medicine (physical medicine & rehabilitation) physician records in California

Dieumy Thai, M.D. is one of 290 pain medicine (physical medicine & rehabilitation) physician records with a practice address in California. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 60% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1987 · median 2005 among the 196 with a school on file
  • Record last updated2010 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2081P2900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pain Medicine (Physical Medicine & Rehabilitation) Physician providers in California

There are 290 pain medicine (physical medicine & rehabilitation) physician records in California.

The 8 pain medicine (physical medicine & rehabilitation) physician records with the nearest ZIP codes

  1. Phuong Tien, M.D.Westminster, CA 926831740445154
  2. Lisa Pitino, D.O.Laguna Hills, CA 926911245415280
  3. Warren Reuland, MDMission Viejo, CA 926911639630338
  4. Sean Ataee, M.D.Santa Ana, CA 927011144363011
  5. Roya Moheimani, M.D.Santa Ana, CA 927051215469747
  6. Pooja Chopra, MDNewport Beach, CA 926601881005817
  7. Arie Gluzman, M.D.Newport Beach, CA 926601528179017
  8. Robert Green, MDNewport Beach, CA 926601861522328

Common questions

What is Dieumy Thai, M.D.'s NPI number?

Dieumy Thai, M.D.'s National Provider Identifier (NPI) is 1639270275, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dieumy Thai, M.D. located?

The NPPES record lists a practice address at 16401 Magnolia St, Westminster, CA, 92683. Phone: (714) 596-4288. Providers update this record themselves, so call before visiting.

How can I verify Dieumy Thai, M.D.'s license?

NPPES lists California license number G64401, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.