Hien T. Nghiem, MD
Family Medicine Physician · Irvine, CA
Hien T. Nghiem, MD is a family medicine physician with a practice address in Irvine, California, and NPI 1689754855, issued on Oct 16, 2006. Check the license (California 000000A81562, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hien T. Nghiem
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 000000A81562 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4900 Barranca Pkwy Ste 103, Irvine, CA 92604
- Phone
- (949) 791-3103
- Enumerated
- Oct 16, 2006
- Record last updated
- Aug 13, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (949) 791-3114
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 4900 Barranca Pkwy Ste 103
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amanda Khosravi, M.D.Family Medicine Physician1386058014
Verify Hien T. Nghiem in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 000000A81562Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $31.47
1 payment: food and beverage; the largest payer was Evofem Biosciences, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Hien T. Nghiem among 17,133 family medicine physician records in California
Hien T. Nghiem, MD is one of 17,133 family 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2013 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
148 family medicine physician records list a practice address in Irvine
They are 148 of the 7,778 NPPES records with a practice address in Irvine, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Irvine → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jon Biorkman, MDIrvine, CA 926041023008679
- David Bunten, D.O.Irvine, CA 926041679527857
- Jun Ho Chae, M.D.Irvine, CA 926041003811969
- James Fenlon, M.DIrvine, CA 926041851347256
- Howard Fishbein, M.D.Irvine, CA 926041689629487
- Richard Kim, DOIrvine, CA 926041710978770
- Steven Long, MDIrvine, CA 926041760446470
- Mary McCarthy, MDIrvine, CA 926041508820267
Common questions
What is Hien T. Nghiem, MD's NPI number?
Hien T. Nghiem, MD's National Provider Identifier (NPI) is 1689754855, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hien T. Nghiem, MD located?
The NPPES record lists a practice address at 4900 Barranca Pkwy Ste 103, Irvine, CA, 92604. Phone: (949) 791-3103. Providers update this record themselves, so call before visiting.
How can I verify Hien T. Nghiem, MD's license?
NPPES lists California license number 000000A81562, 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.