Lam Dang Nguyen, M.D.
Internal Medicine Physician · Pico Rivera, CA
Lam Dang Nguyen, M.D. is an internal medicine physician with a practice address in Pico Rivera, California, and NPI 1538594122, issued on Sep 13, 2013. Check the license (California A126111, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lam Dang Nguyen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A126111 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9330 Washington Blvd, Pico Rivera, CA 90660
- Phone
- (562) 205-4200
- Enumerated
- Sep 13, 2013
- Record last updated
- Nov 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161116000632); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 9330 Washington Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Crystal Aguilar, NPFamily Nurse Practitioner1598201287
- Nadia AwadaPhysician Assistant1659029528
- Cynthia Carrasco-Gonzalez, F.N.PFamily Nurse Practitioner1952700320
- David Ding, MDInternal Medicine Physician1144583758
- Lincoln Vu, NP-CNurse Practitioner1518521525
Verify Lam Dang Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A126111Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% more Medicare Part D claims than the average internal medicine physician in 2024
3,909 Medicare Part D claims for 459 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Atorvastatin Calcium342 claims
- Amlodipine Besylate306 claims
- Rosuvastatin Calcium202 claims
- Losartan Potassium184 claims
- Lisinopril115 claims
- Lisinopril-Hydrochlorothiazide108 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 GroupGarden Grove, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lam Dang Nguyen among 17,696 internal medicine physician records in California
Lam Dang Nguyen, M.D. 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 2013, is newer than 71% of them.
- NPI issued2013 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · 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).
6 internal medicine physician records list a practice address in Pico Rivera
They are 6 of the 470 NPPES records with a practice address in Pico Rivera, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Pico Rivera → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Parveen Ahmed, M.D.Pico Rivera, CA 906601669480745
- David Ding, MDPico Rivera, CA 906601144583758
- Gemma Ko, M.D.Pico Rivera, CA 906601437167715
- Khalid Nur, M.D.Pico Rivera, CA 906601235147521
- Dagmara Olsen, MDPico Rivera, CA 906601356912059
- Alast AhmadiNorwalk, CA 906501962088799
- Dane Copeland, M.D.Santa Fe Springs, CA 906701356409726
- Jennifer Cruz, NPNorwalk, CA 906501689309130
Common questions
What is Lam Dang Nguyen, M.D.'s NPI number?
Lam Dang Nguyen, M.D.'s National Provider Identifier (NPI) is 1538594122, issued on Sep 13, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Lam Dang Nguyen, M.D. located?
The NPPES record lists a practice address at 9330 Washington Blvd, Pico Rivera, CA, 90660. Phone: (562) 205-4200. Providers update this record themselves, so call before visiting.
How can I verify Lam Dang Nguyen, M.D.'s license?
NPPES lists California license number A126111, 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 Lam Dang Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Lam Dang Nguyen, M.D. had 3,909 Medicare Part D claims for 459 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.