Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.

STEPHEN T. NGUYEN, M.D.

Active Sole Proprietor

STEPHEN T. NGUYEN, M.D. is a Internal Medicine healthcare provider located in GAITHERSBURG, Maryland. NPI 1265596050 is currently active in the NPPES registry. Verify at CMS.

Internal Medicine · GAITHERSBURG, MD

Registration Details

NPI Number: 1265596050
Provider Type: Individual
Gender: Male
NPI Issued: Dec 19, 2006 (19.464648037837 yrs)
Last Updated: Aug 14, 2025
License: D0063163 (MD)
Sole Proprietor: Yes

Practice Information

Address: 4 PROFESSIONAL DR STE 133

GAITHERSBURG, MD, 208793426
Browse MD providers · Browse ZIP 20879
Phone: 3019749625
Primary Specialty: Internal Medicine
207R00000X

Other Internal Medicine Providers in GAITHERSBURG, MD

Name	Credential	NPI
DR. ANN FREKKO RAFFO	MD	1497752224
DR. JULIE MAY CHEN	M.D.	1629048467
DR. MARY FREKKO KILAVOS	M.D.	1609841188
MICHELLE H TAN	MD	1467411959
DR. BAOLANG LIAO	M.D.	1215974464
DR. JAMES MICHAEL ANCHORS	M.D.	1285667683

Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.