NPPES file of Aug 9, 2026

Bich-Thuy Dat Nguyen, MD

Gastroenterology Physician · Harbor City, CA

Bich-Thuy Dat Nguyen, MD is a gastroenterology physician with a practice address in Harbor City, California, and NPI 1114075066, issued on Jan 8, 2007. Check the license (California A74914, 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
1114075066
Name
Bich-Thuy Dat Nguyen
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A74914 CA
Self-reported in NPPES; status is on the state search
Practice location
25825 Vermont Ave, Harbor City, CA 90710
Phone
(310) 325-5111
Enumerated
Jan 8, 2007
Record last updated
Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20051213000874); accepts Medicare assignment
Medical or professional school
R Franklin University Of Med & Sci/Chicago Medical School, 1999
Telehealth
Offers telehealth (CMS)
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 25825 Vermont Ave

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

  1. Maryam Abdelnaby, MDFamily Medicine Physician1104978568
  2. Christiana Abraham, NPFamily Nurse Practitioner1447855911
  3. Kamren AckermanPhysical Therapist1104412352
  4. Bradley Ackerson, MDPediatric Infectious Diseases Physician1255490918
  5. Yossef Aelony, MDPulmonary Disease Physician1619178597
  6. Lisa Agustines, MDObstetrics & Gynecology Physician1750452736

Verify Bich-Thuy Dat 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 A74914
    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.

35% more Medicare Part D claims than the average gastroenterology physician in 2024

1,098 Medicare Part D claims for 466 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Bich-Thuy Nguyen1,098
  2. Specialty average811

Most prescribed

  1. Gavilyte-C221 claims
  2. Pantoprazole Sodium206 claims
  3. Omeprazole176 claims
  4. Famotidine66 claims
  5. Lactulose51 claims
  6. Mesalamine44 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.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupHarbor City, CA

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

Bich-Thuy Dat Nguyen among 2,140 gastroenterology physician records in California

Bich-Thuy Dat Nguyen, MD is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 52% of them.

  • NPI issued2007 · 52% of these records are older, 37% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1999 · median 2002 among the 1,538 with a school on file
  • Record last updated2021 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in California

There are 2,140 gastroenterology physician records in California.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Trien Bui, MDHarbor City, CA 907101881742617
  2. Derek Fong, MDHarbor City, CA 907101497876247
  3. Harjot Gill, M.D.Harbor City, CA 907101528047180
  4. Gregory Harmon, M.D.Harbor City, CA 907101346347028
  5. Kapil Mehta, MDHarbor City, CA 907101326115296
  6. Avanish Patel, MDHarbor City, CA 907101871652529
  7. Peter Sender, MDHarbor City, CA 907101407915010
  8. Conrad Cox, M.D.Lakewood, CA 907121851338941

Common questions

What is Bich-Thuy Dat Nguyen, MD's NPI number?

Bich-Thuy Dat Nguyen, MD's National Provider Identifier (NPI) is 1114075066, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Bich-Thuy Dat Nguyen, MD located?

The NPPES record lists a practice address at 25825 Vermont Ave, Harbor City, CA, 90710. Phone: (310) 325-5111. Providers update this record themselves, so call before visiting.

How can I verify Bich-Thuy Dat Nguyen, MD's license?

NPPES lists California license number A74914, 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 Bich-Thuy Dat Nguyen, MD prescribe under Medicare Part D?

In 2024, Bich-Thuy Dat Nguyen, MD had 1,098 Medicare Part D claims for 466 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

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.