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

Dr. Gerald Marshall Isbell III, MD

Individual provider Gastroenterology Physician · NPI 1093774853

Dr. Gerald Marshall Isbell III, MD is a Gastroenterology in Dallas, Texas. Qualified in 1982, 44 years ago. Practices with University of Texas Southwestern Medical Center at Dallas, a 3,149-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
44
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

6201 Harry Hines Blvd
Dallas, TX 75390-2571
Phone: (214) 633-5555
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)

  • 7777 Forest Ln, Dallas, TX 75230-2571 — (972) 566-6667

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence H1289 (TX)

Record details

NPI number1093774853
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 21, 2006
Last updated in NPPESMarch 25, 2022
Certification dateMarch 24, 2022

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1982 (44 years in practice)
Group practice University Of Texas Southwestern Medical Center At Dallas — 3149 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Dallas