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

Dr. Mark Lee Thornton, MD

Individual provider Internal Medicine Physician · NPI 1669552790

Dr. Mark Lee Thornton, MD is an Internal Medicine in San Antonio, Texas. Graduated from University of Texas Medical Branch at Galveston in 1980, 46 years ago. Practices with Execudoc, Inc, a 2-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
46
Trained at
University of Texas Medical Branch at Galveston
Licensed in
TX
In the registry since
2006
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

7720 Jones Maltsberger Rd Ste # 110
San Antonio, TX 78216-6946
Phone: (210) 822-2004
Fax: (210) 822-2215
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence F7234 (TX)

Record details

NPI number1669552790
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 16, 2006
Last updated in NPPESJuly 8, 2007
Mailing address7720 Jones Maltsberger Rd, Ste. # 110, San Antonio, TX 78216-6946

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Graduated 1980 (46 years in practice)
Group practice Execudoc, Inc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in San Antonio