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

Dr. Gary Lloyd Horn Jr., MD

Individual provider Diagnostic Radiology Physician · NPI 1720399629

Dr. Gary Lloyd Horn Jr., MD is a Diagnostic Radiology in Houston, Texas. Graduated from Baylor College of Medicine in 2010, 16 years ago. Practices with Singleton Associates PA, a 795-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts and Texas.

Years since qualifying
16
Trained at
Baylor College of Medicine
Licensed in
MA, TX
In the registry since
2010
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

6560 Fannin St
Houston, TX 77030-2761
Phone: (713) 441-4431
Fax: (713) 790-6615
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 7200 Cambridge St, Houston, TX 77030-4202 — (713) 798-2400

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence P3539 (TX)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 262077 (MA)

Record details

NPI number1720399629
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 24, 2010
Last updated in NPPESAugust 27, 2025
Certification dateAugust 27, 2025

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolBAYLOR COLLEGE OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Singleton Associates Pa — 795 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Houston