Tuan Nguyen, MD
Gastroenterology Physician · San Diego, CA
Tuan Nguyen, MD is a gastroenterology physician with a practice address in San Diego, California, and NPI 1730270380, issued on Sep 27, 2006. Check the license (California G68761, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tuan Nguyen
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- G68761 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4141 Fairmount Ave, San Diego, CA 92105
- Phone
- (858) 278-5293
- Enumerated
- Sep 27, 2006
- Record last updated
- Feb 2, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (619) 278-5393
- Medicaid ID
- 00G687611 CA
- Medicare enrollment
- Enrolled (PECOS I20091021000321); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Verify Tuan Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G68761Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average gastroenterology physician in 2024
648 Medicare Part D claims for 186 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.
Most prescribed
- Vemlidy208 claims
- Entecavir56 claims
- Omeprazole51 claims
- Sod Sulf-Potass Sulf-Mag Sulf51 claims
- Tenofovir Disoproxil Fumarate36 claims
- Linzess31 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.
Industry payments in 2024: $15,332.89
19 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Tuan Nguyen among 2,140 gastroenterology physician records in California
Tuan 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
- Graduated1988 · median 2002 among the 1,538 with a school on file
- Record last updated2009 · 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 Diego → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Shravan Dave, MDSan Diego, CA 921031588081814
- Megan Delvecchio, APRNSan Diego, CA 921031437662863
- Armen Eskandari, MDSan Diego, CA 921031043653413
- Mohammad Phillip Fejleh, MDSan Diego, CA 921031205240959
- Andres Gottfried Blackmore, M.D.San Diego, CA 921031629310735
- Faizi Hai, MDSan Diego, CA 921031639523228
- Ki-Yoon Kim, M.D.San Diego, CA 921031558715110
- Eric Low, M.D., M.P.H.San Diego, CA 921031245761766
Common questions
What is Tuan Nguyen, MD's NPI number?
Tuan Nguyen, MD's National Provider Identifier (NPI) is 1730270380, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tuan Nguyen, MD located?
The NPPES record lists a practice address at 4141 Fairmount Ave, San Diego, CA, 92105. Phone: (858) 278-5293. Providers update this record themselves, so call before visiting.
How can I verify Tuan Nguyen, MD's license?
NPPES lists California license number G68761, 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 Tuan Nguyen, MD prescribe under Medicare Part D?
In 2024, Tuan Nguyen, MD had 648 Medicare Part D claims for 186 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.