Gastroenterologist (digestive)
41 years of experience
Accepting new patients
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).

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Specialties & Research

  • 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. Wiley graduated from Meharry Medical College, Nashville.


Dr. Wiley has 9 hospital affiliations:

  • John Muir Medical Center, Walnut Creek Campus 
  • Alta Bates Summit Medical Center - Alta Bates Campus 


  • Spanish
  • English

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Additional Information
Dr. Zealous Darrell Wiley MD is a male Internist, has 41 years of experience and practices in Gastroenterology.
Where does Dr. Zealous D. Wiley practice?
Dr. Zealous Wiley has 2 office locations.
Dr. Zealous Wiley practices Gastroenterology near Oakland, CA.
See Oakland Gastroenterologists.