NPPES file of Aug 9, 2026

Stephanie Anh-Hang Nguyen, D.O.

Adult Medicine Physician · Patton, CA

Stephanie Anh-Hang Nguyen, D.O. is an adult medicine physician with a practice address in Patton, California, and NPI 1114033388, issued on Aug 21, 2006. Check the license (California 20A7978, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114033388
Name
Stephanie Anh-Hang Nguyen
Credential
D.O.
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
20A7978 CA
Self-reported in NPPES; status is on the state search
Practice location
3102 E. Highland Avenue, Patton, CA 92369
Phone
(909) 425-7679
Enumerated
Aug 21, 2006
Record last updated
Aug 8, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(909) 425-6635
Medicaid ID
00AX79780 CA
Medicare enrollment
Enrolled (PECOS I20051202000565); accepts Medicare assignment
Medical or professional school
Arizona College Of Osteopathic Medicine Mid Western University, 2000
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 3102 E. Highland Avenue

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

  1. Tim Alder, M.D.Psychiatry Physician1619929023
  2. Luminita Andronescu, M.D.Specialist1699856864
  3. Ai Li Arias, M.D.Psychiatry Physician1134171598
  4. Maurizio Assandri, PH.D.Psychologist1790807402
  5. Jasdeep Aulakh, M.D.Geriatric Psychiatry Physician1932153616
  6. Tamseela Awan, M.D.Internal Medicine Physician1720059413

Verify Stephanie Anh-Hang 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 20A7978
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $24.80

1 payment: food and beverage; the largest payer was Abbott Laboratories. The 664 providers of this specialty with any payment received $1,405.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephanie Nguyen$24.80
  2. Specialty average$1,405.95

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

Bills Medicare through one group practice

  1. Department OF State HospitalsNorwalk, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stephanie Anh-Hang Nguyen among 386 adult medicine physician records in California

Stephanie Anh-Hang Nguyen, D.O. is one of 386 adult medicine physician records with a practice address in California. 69% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 65% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated2000 · median 2005 among the 187 with a school on file
  • Record last updated2013 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 adult medicine physician records list a practice address in Patton

They are 2 of the 339 NPPES records with a practice address in Patton, and 386 adult medicine physician records in California.

The 8 adult medicine physician records with the nearest ZIP codes

  1. Alan Ta, M.D.Patton, CA 923691801093489
  2. William Angkadjaja, MDRedlands, CA 923741871027722
  3. Lafayette Tylee, M.D.Victorville, CA 923951275612798
  4. Richelle Marracino, M.D.San Bernardino, CA 924071861602021
  5. Abigail Soto, MDSan Bernardino, CA 924101538592506
  6. Walker Felix, M.D.Colton, CA 923241760554893
  7. Mariela VentocillaTwentynine Palms, CA 922771972846756
  8. Nathan WilliamsThermal, CA 922741548345473

Common questions

What is Stephanie Anh-Hang Nguyen, D.O.'s NPI number?

Stephanie Anh-Hang Nguyen, D.O.'s National Provider Identifier (NPI) is 1114033388, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephanie Anh-Hang Nguyen, D.O. located?

The NPPES record lists a practice address at 3102 E. Highland Avenue, Patton, CA, 92369. Phone: (909) 425-7679. Providers update this record themselves, so call before visiting.

How can I verify Stephanie Anh-Hang Nguyen, D.O.'s license?

NPPES lists California license number 20A7978, 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.