Adrienne J. Nguyen, MD
Gastroenterology Physician · San Carlos, CA
Adrienne J. Nguyen, MD is a gastroenterology physician with a practice address in San Carlos, California, and NPI 1376635219, issued on Sep 29, 2006. Check the license (California C53504, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Adrienne J. Nguyen
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- C53504 CA
2013009358 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Laurel St, San Carlos, CA 94070
- Phone
- (650) 596-8800
- Enumerated
- Sep 29, 2006
- Record last updated
- Jun 3, 2026
- Fax
- (650) 596-8802
- Medicare enrollment
- Enrolled (PECOS I20130426000117); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Kansas City, School Of Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 1000 Laurel St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alyssa CaplanGastroenterology Physician1144781915
- Roger Kao, M.D.Gastroenterology Physician1982786133
- Scott Levenson, MDGastroenterology Physician1578548186
Verify Adrienne J. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C53504Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Hannibal Regional Healthcare System IncHannibal, MO
- Medstar Medical Group II LLCBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adrienne J. Nguyen among 2,140 gastroenterology physician records in California
Adrienne J. 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1996 · median 2002 among the 1,538 with a school on file
- Record last updated2026 · 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.
All 2,140 in California → Every provider in San Carlos → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Alyssa CaplanSan Carlos, CA 940701144781915
- Roger Kao, M.D.San Carlos, CA 940701982786133
- Scott Levenson, MDSan Carlos, CA 940701578548186
- Tohru Sato, MDSan Carlos, CA 940701497847248
- Ming-Shing Chiu, MDRedwood City, CA 940631154409712
- Francis Chui, MDRedwood City, CA 940631033297684
- Henry Chun, MDRedwood City, CA 940631952489502
- Christina Dimopoulos-Verma, MDRedwood City, CA 940631053976738
Common questions
What is Adrienne J. Nguyen, MD's NPI number?
Adrienne J. Nguyen, MD's National Provider Identifier (NPI) is 1376635219, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Adrienne J. Nguyen, MD located?
The NPPES record lists a practice address at 1000 Laurel St, San Carlos, CA, 94070. Phone: (650) 596-8800. Providers update this record themselves, so call before visiting.
How can I verify Adrienne J. Nguyen, MD's license?
NPPES lists California license number C53504, 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.