Dang M. Nguyen, MD
Gastroenterology Physician · Houston, TX
Dang M. Nguyen, MD is a gastroenterology physician with a practice address in Houston, Texas, and NPI 1023278850, issued on Jun 16, 2008. Check the license (Texas M6309, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Dang M. Nguyen
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- M6309 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4100 S Shepherd Dr, Houston, TX 77098
- Phone
- (713) 795-4444
- Enumerated
- Jun 16, 2008
- Record last updated
- Apr 12, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101116000441); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,478 in Texas → Look up another NPI →
Also registered at 4100 S Shepherd Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Harshinie Amaratunge, M.DGastroenterology Physician1265696504
- Jay Davis, M.D.Internal Medicine Physician1215096649
- Ikenna EmeloguGastroenterology Physician1174010177
- Isaac Raijman, MDGastroenterology Physician1689679557
- Thomas Speer, PH.D. D,ABSMSleep Specialist (PhD)1063434249
Verify Dang M. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M6309Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% more Medicare Part D claims than the average gastroenterology physician in 2024
1,252 Medicare Part D claims for 433 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Omeprazole244 claims
- Pantoprazole Sodium113 claims
- Sucralfate80 claims
- Famotidine76 claims
- Dicyclomine Hcl63 claims
- Gavilyte-G62 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,952.19
102 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.
Bills Medicare through one group practice
- Texas Digestive Disease Consultants, PLLCHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dang M. Nguyen among 1,478 gastroenterology physician records in Texas
Dang M. Nguyen, MD is one of 1,478 gastroenterology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 59% of them.
- NPI issued2008 · 59% of these records are older, 36% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2010 · median 2003 among the 1,175 with a school on file
- Record last updated2016 · 53% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Texas
There are 1,478 gastroenterology physician records in Texas.
All 1,478 in Texas → Every provider in Houston → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Harshinie Amaratunge, M.DHouston, TX 770981265696504
- Ikenna EmeloguHouston, TX 770981174010177
- Isaac Raijman, MDHouston, TX 770981689679557
- Ihsan Al Bayati, MDHouston, TX 770941538571849
- Shawn Gurwara, M.D.Houston, TX 770941114371937
- Adrianne Van Norman, DOHouston, TX 770941699137612
- Rambabu Chalasani, MDHouston, TX 770901407845399
- Howard Hamat, MDHouston, TX 770901376537605
Common questions
What is Dang M. Nguyen, MD's NPI number?
Dang M. Nguyen, MD's National Provider Identifier (NPI) is 1023278850, issued on Jun 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Dang M. Nguyen, MD located?
The NPPES record lists a practice address at 4100 S Shepherd Dr, Houston, TX, 77098. Phone: (713) 795-4444. Providers update this record themselves, so call before visiting.
How can I verify Dang M. Nguyen, MD's license?
NPPES lists Texas license number M6309, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Dang M. Nguyen, MD prescribe under Medicare Part D?
In 2024, Dang M. Nguyen, MD had 1,252 Medicare Part D claims for 433 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Dang M. Nguyen, MD's MIPS final score?
The 2023 MIPS final score is 79.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.