Registry data as of Aug 27, 2026

Ninh Nguyen, MD

Surgery Physician · Orange, CA

Ninh Nguyen, MD is a surgery physician with a practice address in Orange, California, and NPI 1487734653, issued on Oct 16, 2006. Check the license (California 000000G84677, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1487734653
Name
Ninh Nguyen
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License number
000000G84677 CA
Self-reported in NPPES; status is on the state search
Practice location
101 The City Dr S Bldg 22C, Orange, CA 92868
Phone
(888) 717-4463
Enumerated
Oct 16, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 101 The City Dr S Bldg 22C

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Frances Dang, MDGastroenterology Physician1225892219
  2. Marcelo Hinojosa, MDSurgery Physician1861673998
  3. Amber Isenhart, MS, RDRegistered Dietitian1023401288
  4. Avni Jain, MD, FRCPCGastroenterology Physician1629837455
  5. William Karnes, MDGastroenterology Physician1881652998
  6. Joshua KwonGastroenterology Physician1053870121

Verify Ninh Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 000000G84677
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

93% fewer Medicare Part D claims than the average surgery physician in 2024

12 Medicare Part D claims, against an average of 174 among the 21,427 providers of this specialty who prescribed in Part D.

  1. Ninh Nguyen12
  2. Specialty average174

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.

Industry payments in 2024: $16,644.09

22 payments, mostly travel and lodging; the largest payer was Olympus Corporation of the Americas. The 19,002 providers of this specialty with any payment received $3,758.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ninh Nguyen$16,644.09
  2. Specialty average$3,758.86

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. University Surgeons OF Orange A Medical GroupOrange, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Surgery Physician providers in California

There are 3,381 surgery physician records in California.

Other surgery physician records in California

  1. Oliver Aalami, M.D.Stanford, CA1225229024
  2. Shahram Aarabi, MDOakland, CA1972700458
  3. Miriam Abaunza, M.D.Los Angeles, CA1538470778
  4. Benjamin Abbadessa, M.D.San Diego, CA1255593612
  5. Abdul-Rahman Abdel-ReheemLos Angeles, CA1831770437
  6. Sandy Abdelkedous, MDFresno, CA1306093109
  7. Hana Abdirahman, MDTemecula, CA1265288112
  8. Sherwin Abdoli, MDPetaluma, CA1508386442
  9. Michael Abdulian, MDGlendale, CA1649469628
  10. Mhdshafic Abdulkarim, MDOrange, CA1750174249

Common questions

What is Ninh Nguyen, MD's NPI number?

Ninh Nguyen, MD's National Provider Identifier (NPI) is 1487734653, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ninh Nguyen, MD located?

The NPPES record lists a practice address at 101 The City Dr S Bldg 22C, Orange, CA, 92868. Phone: (888) 717-4463. Providers update this record themselves, so call before visiting.

How can I verify Ninh Nguyen, MD's license?

NPPES lists California license number 000000G84677, 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 Ninh Nguyen, MD prescribe under Medicare Part D?

In 2024, Ninh Nguyen, MD had 12 Medicare Part D claims; the average among surgery physician prescribers was 174. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.