Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Brian Duffy

Individual provider Internal Medicine Physician · NPI 1417451030

Brian Duffy is an Internal Medicine in Houston, Texas. Graduated from University of Texas Southwestern Medical School at Dallas in 2021, 5 years ago. Practices with University of Texas Southwestern Medical Center at Dallas, a 3,149-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Alabama, Arizona, Colorado and Delaware and 11 more.

Years since qualifying
5
Trained at
University of Texas Southwestern Medical School at Dallas
Licensed in
AL, AZ, CO, DE, GA, HI
In the registry since
2018
Specialties on file
15

Practice location Address checks out

1201 Fannin St Ste 262
Houston, TX 77002-6943
Phone: (866) 849-0692
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5323 Harry Hines Blvd, Dallas, TX 75390-7201 — (214) 648-9741

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence T0772 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence 53499 (AL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 80203 (AZ)
Internal Medicine Physician Taxonomy 207R00000X · Licence C1-0029319 (DE)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD-26705 (HI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 77156 (TN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 01099404A (IN)
Internal Medicine Physician Taxonomy 207R00000X · Licence CDR.0006624 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2026-01212 (NC)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD70104739 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 47649 (OK)
Internal Medicine Physician Taxonomy 207R00000X · Licence 110890 (GA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 14275320-1235 (UT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2026012934 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD-56655 (IA)

Record details

NPI number1417451030
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 20, 2018
Last updated in NPPESMay 22, 2026
Certification dateMay 22, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL SCHOOL AT DALLAS
Graduated 2021 (5 years in practice)
Group practice University Of Texas Southwestern Medical Center At Dallas — 3149 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Houston