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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. David Douglas:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. David Douglas is Average. Dr. Douglas has been reviewed by 2 patients who have provided 0 comments. The rating is 2.5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. David Douglas, MD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 8 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Hepatitis B
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Liver Diseases
  • Pancreatic Diseases
  • Ulcerative Colitis

Education & Awards

Dr. Douglas graduated from University of Oklahoma , Oklahoma City. He has 2 awards.

Fellow's award for outstanding research, 1992 glaxo research institute
President's scholarship award, 1978 university of oklahoma


Dr. Douglas has 2 hospital affiliations:

  • Mayo Clinic Hospital 
  • Mayo Clinic Hospital, Phoenix, Arizona 

> > > > Dr. David Douglas, MD

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Additional Information
Dr. David Dwayne Douglas MD is a male Internist, has 25 years of experience and practices in Internal Medicine, Gastroenterology, and Hepatology.
Where does Dr. David D. Douglas practice?
Dr. David Douglas has 1 office location.
Dr. David Douglas practices Internal Medicine, Gastroenterology, and Hepatology near Phoenix, AZ.
See Phoenix Internists, Phoenix Gastroenterologists, and Phoenix Hepatologists.