Registry data as of Aug 27, 2026

Alexandra Nguyen, MD

Surgery Physician · Colton, CA

Alexandra Nguyen, MD is a surgery physician with a practice address in Colton, California, and NPI 1093389181, issued on May 13, 2021. Check the license (California A195165, 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
1093389181
Name
Alexandra Nguyen
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License number
A195165 CA
Self-reported in NPPES; status is on the state search
Practice location
400 N Pepper Ave, Colton, CA 92324
Phone
(909) 580-3362
Enumerated
May 13, 2021
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 400 N Pepper Ave

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

  1. Shangrila AbaricoRegistered Nurse1609659325
  2. Susana AbaroRegistered Nurse1114425162
  3. Patricia AbbaRegistered Nurse1013188838
  4. Mohammad Hossein Abbasi, MD, MPHStudent in an Organized Health Care Education/Training Program1609622166
  5. Ala AbedrabboRegistered Nurse1972333144
  6. Mary AboagyeLicensed Vocational Nurse1982875605

Verify Alexandra 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 A195165
    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 →

59% fewer Medicare Part D claims than the average surgery physician in 2024

72 Medicare Part D claims for 44 beneficiaries, against an average of 174 among the 21,427 providers of this specialty who prescribed in Part D. 21 claims were for opioids.

  1. Alexandra Nguyen72
  2. Specialty average174

Most prescribed

  1. Gabapentin18 claims
  2. Ibuprofen11 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.

20 surgery physician records list a Colton practice address

They are 20 of the 2,459 NPPES records with a Colton practice address, and 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 Alexandra Nguyen, MD's NPI number?

Alexandra Nguyen, MD's National Provider Identifier (NPI) is 1093389181, issued on May 13, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Alexandra Nguyen, MD located?

The NPPES record lists a practice address at 400 N Pepper Ave, Colton, CA, 92324. Phone: (909) 580-3362. Providers update this record themselves, so call before visiting.

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

NPPES lists California license number A195165, 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 Alexandra Nguyen, MD prescribe under Medicare Part D?

In 2024, Alexandra Nguyen, MD had 72 Medicare Part D claims for 44 beneficiaries; 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.