Andrew Lam-Dinh Nguyen, MD
Emergency Medicine Physician · San Dimas, CA
Andrew Lam-Dinh Nguyen, MD is an emergency medicine physician with a practice address in San Dimas, California, and NPI 1659021269, issued on Mar 26, 2022. Check the license (California A201270, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Andrew Lam-Dinh Nguyen
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A201270 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1350 W Covina Blvd, San Dimas, CA 91773
- Phone
- (909) 599-6811
- Enumerated
- Mar 26, 2022
- Record last updated
- Jun 26, 2025
- Medicare enrollment
- Enrolled (PECOS I20250724002732); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 2022
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1350 W Covina Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amneh Alnsour, M.DStudent in an Organized Health Care Education/Training Program1427848068
- Deanna Anthoney, MDEmergency Medicine Physician1982642161
- Bassam Aziz, FNP-BCFamily Nurse Practitioner1518664879
- Maria Sagrario Azurin, RNRegistered Nurse1609491372
- Olayiwola Babalola, MDFamily Medicine Physician1508548538
- Udhamgurjot Bajwa, M.D.Student in an Organized Health Care Education/Training Program1154263093
Verify Andrew Lam-Dinh Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A201270Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average emergency medicine physician in 2024
58 Medicare Part D claims for 48 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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
- Orange County Emergency Medical Associates IncLa Palma, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew Lam-Dinh Nguyen among 7,751 emergency medicine physician records in California
Andrew Lam-Dinh Nguyen, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 95% of them.
- NPI issued2022 · 95% of these records are older, 2% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2022 · median 2011 among the 4,560 with a school on file
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 emergency medicine physician records list a practice address in San Dimas
They are 12 of the 942 NPPES records with a practice address in San Dimas, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in San Dimas → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Deanna Anthoney, MDSan Dimas, CA 917731982642161
- Alfred Fernandez, MDSan Dimas, CA 917731538696042
- Brenda Hayakawa, MDSan Dimas, CA 917731679527386
- Bruce Hensel, MDSan Dimas, CA 917731700824083
- Glenn Kane, MDSan Dimas, CA 917731649218835
- Nadine Konia, MDSan Dimas, CA 917731104873413
- Brandon Kuang, MDSan Dimas, CA 917731801393871
- James Pagano, MDSan Dimas, CA 917731003855826
Common questions
What is Andrew Lam-Dinh Nguyen, MD's NPI number?
Andrew Lam-Dinh Nguyen, MD's National Provider Identifier (NPI) is 1659021269, issued on Mar 26, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Lam-Dinh Nguyen, MD located?
The NPPES record lists a practice address at 1350 W Covina Blvd, San Dimas, CA, 91773. Phone: (909) 599-6811. Providers update this record themselves, so call before visiting.
How can I verify Andrew Lam-Dinh Nguyen, MD's license?
NPPES lists California license number A201270, 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 Andrew Lam-Dinh Nguyen, MD prescribe under Medicare Part D?
In 2024, Andrew Lam-Dinh Nguyen, MD had 58 Medicare Part D claims for 48 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.