Jacquelyn Yen Nguyen, M.D.
Internal Medicine Physician · Los Angeles, CA
Jacquelyn Yen Nguyen, M.D. is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1982855417, issued on Oct 2, 2008. Check the license (California A102714, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jacquelyn Yen Nguyen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A102714 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2901 S Sepulveda Blvd Apt 159, Los Angeles, CA 90064
- Phone
- (714) 307-5029
- Enumerated
- Oct 2, 2008
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100707000510); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Jacquelyn Yen Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A102714Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,062 Medicare Part D claims for 284 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Furosemide122 claims
- Losartan Potassium120 claims
- Lisinopril108 claims
- Potassium Chloride66 claims
- Amlodipine Besylate60 claims
- Sevelamer Carbonate53 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 GroupOntario, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jacquelyn Yen Nguyen among 17,696 internal medicine physician records in California
Jacquelyn Yen 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 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2006 · 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).
1,423 internal medicine physician records list a practice address in Los Angeles
They are 1,423 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Los Angeles → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Etsemaye Agonafer, M.D., M.P.H, M.S.Los Angeles, CA 900641689092215
- Matthew DudaLos Angeles, CA 900641992116735
- Bradley Friedman, M.D.Los Angeles, CA 900641831383082
- Bruce Gillis, M.D.Los Angeles, CA 900641013945542
- Keivan Golchini, MDLos Angeles, CA 900641528074812
- Matthew Jung, MDLos Angeles, CA 900641588970115
- Robert Kakehashi, M.D.Los Angeles, CA 900641255486072
- Jennifer Oster, DO, MPHLos Angeles, CA 900641548816937
Common questions
What is Jacquelyn Yen Nguyen, M.D.'s NPI number?
Jacquelyn Yen Nguyen, M.D.'s National Provider Identifier (NPI) is 1982855417, issued on Oct 2, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Jacquelyn Yen Nguyen, M.D. located?
The NPPES record lists a practice address at 2901 S Sepulveda Blvd Apt 159, Los Angeles, CA, 90064. Phone: (714) 307-5029. Providers update this record themselves, so call before visiting.
How can I verify Jacquelyn Yen Nguyen, M.D.'s license?
NPPES lists California license number A102714, 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 Jacquelyn Yen Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Jacquelyn Yen Nguyen, M.D. had 1,062 Medicare Part D claims for 284 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.