Thi Bich Ngoc Mai, MD
Internal Medicine Physician · Anaheim, CA
Thi Bich Ngoc Mai, MD is an internal medicine physician with a practice address in Anaheim, California, and NPI 1629496062, issued on Apr 2, 2014. Check the license (California A138623, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thi Bich Ngoc Mai
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A138623 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1188 N Euclid St, Anaheim, CA 92801
- Phone
- (714) 254-2747
- Enumerated
- Apr 2, 2014
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20171023002600); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1188 N Euclid St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ryann Ahern, M.D.Internal Medicine Physician1306149166
- Syed Ahmed, PHARMDPharmacist1780478875
- Eileen Arcebal, M.A., CCC-SLPSpeech-Language Pathologist1295855641
- Amalia Arizpe-Fernandez, LMFTProfessional Counselor1205033792
- Daniel Arvesen, M.A., LMFTMarriage & Family Therapist1659433860
- Gina Bodnar, M.S.Marriage & Family Therapist1558553669
Verify Thi Bich Ngoc Mai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A138623Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average internal medicine physician in 2024
3,051 Medicare Part D claims for 386 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 123 claims were for opioids.
Most prescribed
- Atorvastatin Calcium236 claims
- Levothyroxine Sodium129 claims
- Losartan Potassium126 claims
- Amlodipine Besylate118 claims
- Lisinopril103 claims
- Rosuvastatin Calcium100 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupAnaheim, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thi Bich Ngoc Mai among 17,696 internal medicine physician records in California
Thi Bich Ngoc Mai, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2014 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
189 internal medicine physician records list a practice address in Anaheim
They are 189 of the 9,018 NPPES records with a practice address in Anaheim, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Anaheim → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Amirtha Ajit, MDAnaheim, CA 928011881688422
- Jagminder Bhalla, M.D.Anaheim, CA 928011003879743
- Srikrishna Chundru, MDAnaheim, CA 928011932162815
- Kenneth Han, D.O.Anaheim, CA 928011811960982
- Hooshang Javaheri, MDAnaheim, CA 928011063419448
- Edwin Mattson, MDAnaheim, CA 928011770580920
- Min Min Mya, M.D.Anaheim, CA 928011154369148
- Parvin Nazari, MDAnaheim, CA 928011437148632
Common questions
What is Thi Bich Ngoc Mai, MD's NPI number?
Thi Bich Ngoc Mai, MD's National Provider Identifier (NPI) is 1629496062, issued on Apr 2, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Thi Bich Ngoc Mai, MD located?
The NPPES record lists a practice address at 1188 N Euclid St, Anaheim, CA, 92801. Phone: (714) 254-2747. Providers update this record themselves, so call before visiting.
How can I verify Thi Bich Ngoc Mai, MD's license?
NPPES lists California license number A138623, 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.
How much does Thi Bich Ngoc Mai, MD prescribe under Medicare Part D?
In 2024, Thi Bich Ngoc Mai, MD had 3,051 Medicare Part D claims for 386 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.