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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Gerald Isbell:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (7)

The overall average patient rating of Dr. Gerald Isbell is Good. Dr. Isbell has been reviewed by 12 patients who have provided 7 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.9
Promptness 3.9
Courteous Staff 4.4
Accurate Diagnosis 4.0
Bedside Manner 3.4
Spends Time with Me 3.5
Follows Up After Visit 3.6

Specialties & Research

Dr. Gerald Isbell, MD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 5 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Isbell graduated from Wake Forest University, Winston Salem.


Dr. Isbell has 4 hospital affiliations:

  • Medical City Dallas Hospital 
  • North Central Medical Center 


  • French
  • Spanish

> > > > Dr. Gerald Isbell, MD

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Additional Information
Dr. Gerald Marshall Isbell MD is a male Internist, has 29 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Gerald M. Isbell practice?
Dr. Gerald Isbell has 1 office location.
Dr. Gerald Isbell practices Internal Medicine and Gastroenterology near Dallas, TX.
See Dallas Internists and Dallas Gastroenterologists.