John Khanh Quoc Nguyen, MD
Emergency Medicine Physician · Houston, TX
John Khanh Quoc Nguyen, MD is an emergency medicine physician with a practice address in Houston, Texas, and NPI 1912534025, issued on Mar 26, 2020. Check the license (Texas W3850, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Khanh Quoc Nguyen
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- W3850 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1515 Holcombe Blvd, Houston, TX 77030
- Phone
- (713) 792-6161
- Enumerated
- Mar 26, 2020
- Record last updated
- Jun 30, 2026
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 1515 Holcombe Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Khanh Quoc Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license W3850Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average emergency medicine physician in 2024
24 Medicare Part D claims for 19 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
John Khanh Quoc Nguyen among 4,885 emergency medicine physician records in Texas
John Khanh Quoc Nguyen, MD is one of 4,885 emergency medicine physician records with a practice address in Texas. 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 2020, is newer than 84% of them.
- NPI issued2020 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
818 emergency medicine physician records list a practice address in Houston
They are 818 of the 61,221 NPPES records with a practice address in Houston, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Houston → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Bentley Bobrow, M.D.Houston, TX 770301528040276
- Jack Butler, M.D.Houston, TX 770301962491035
- Pamela Carmain, M.D.Houston, TX 770301285636266
- Crystal Cassidy, M.D.Houston, TX 770301316948599
- Robert Dickson, MDHouston, TX 770301609866391
- Swapan Dubey, M.D.Houston, TX 770301497756175
- Bhushan Kukkalli, M.D.Houston, TX 770301871579276
- Kelly Larkin, M.D.Houston, TX 770301144205683
Common questions
What is John Khanh Quoc Nguyen, MD's NPI number?
John Khanh Quoc Nguyen, MD's National Provider Identifier (NPI) is 1912534025, issued on Mar 26, 2020. An NPI identifies a provider in billing; it is not a license.
Where is John Khanh Quoc Nguyen, MD located?
The NPPES record lists a practice address at 1515 Holcombe Blvd, Houston, TX, 77030. Phone: (713) 792-6161. Providers update this record themselves, so call before visiting.
How can I verify John Khanh Quoc Nguyen, MD's license?
NPPES lists Texas license number W3850, 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 John Khanh Quoc Nguyen, MD prescribe under Medicare Part D?
In 2024, John Khanh Quoc Nguyen, MD had 24 Medicare Part D claims for 19 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.