Joseph Nguyen, MD
Allergy & Immunology (Internal Medicine) Physician · Orange, CA
Joseph Nguyen, MD is an allergy & immunology (internal medicine) physician with a practice address in Orange, California, and NPI 1225217425, issued on Oct 24, 2007. Check the license (California A91271, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Joseph Nguyen
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology (Internal Medicine) Physician 207RA0201X
- License numbers
- A91271 CA
A92171 CA
Self-reported in NPPES; status is on the state search - Practice location
- 101 The City Dr S, Orange, CA 92868
- Phone
- (714) 456-5691
- Enumerated
- Oct 24, 2007
- Record last updated
- Apr 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 101 The City Dr S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danny Abad, PAPhysician Assistant1477158673
- Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
- Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
- Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
- Eric AbelloOtolaryngology Physician1922566215
- Brandon Abeyta, MDAnesthesiology Physician1841291804
Verify Joseph Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A91271Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Allergy & Immunology (Internal Medicine) Physician providers in California
There are 81 allergy & immunology (internal medicine) physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other allergy & immunology (internal medicine) physician records in California
- Shields Abernathy, M.D.Templeton, CA1508886235
- Sam Ahn, M.D.Napa, CA1558423814
- Fatima Ali, MDSacramento, CA1093045023
- Sowmya Arja, M.D.San Francisco, CA1215390166
- Anna Arroyo, MDStanford, CA1205102472
- Lawrence Awai, M.D.Clovis, CA1629510235
- Sally Bailey, MDSan Ramon, CA1700815677
- Tyler Basen, M.D.Mission Viejo, CA1184069692
- Sheila Bonilla-Tandoc, MD, MSLos Angeles, CA1457387805
- Geoffrey Carlson, MDTravis Afb, CA1174865588
Common questions
What is Joseph Nguyen, MD's NPI number?
Joseph Nguyen, MD's National Provider Identifier (NPI) is 1225217425, issued on Oct 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Nguyen, MD located?
The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 456-5691. Providers update this record themselves, so call before visiting.
How can I verify Joseph Nguyen, MD's license?
NPPES lists California license number A91271, 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. 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.