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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).

Patient Reviews

Patient comments (8)

The overall average patient rating of Dr. Viju Deenadayalu, Gastroenterologist is Excellent. Dr. Deenadayalu has been reviewed by 14 patients who have provided 8 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.1
Promptness 4.3
Courteous Staff 4.6
Accurate Diagnosis 4.4
Bedside Manner 4.4
Spends Time with Me 4.6
Follows Up After Visit 4.7

Specialties & Research

Dr. Viju Deenadayalu, MD is board certified in Gastroenterology.

  • He has special expertise in 8 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Colon Cancer
  • Colonoscopy
  • Constipation
  • Hepatitis C
  • Inflammatory Bowel Diseases (IBD)
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Deenadayalu graduated from Wright State University, Dayton. He has 3 awards.

Honorable mention in the ACP/ASIM medical student poster competition Dean’s List: Indiana University, Bloomington, Indiana
Nominee for the Walter J. Daly Outstanding Internal Medicine Resident Award, Indiana University School of Medicine, Indianapolis
Patients' Choice Award (2011 - 2012, 2014)


Dr. Deenadayalu has 2 hospital affiliations:

  • Providence Milwaukie Hospital 
  • Providence Portland Medical Center 


  • English

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Additional Information
Dr. Viju Philip Deenadayalu MD is a male Internist, has 9 years of experience and practices in Gastroenterology.
Where does Dr. Viju P. Deenadayalu practice?
Dr. Viju Deenadayalu has 2 office locations.
Dr. Viju Deenadayalu practices Gastroenterology near Portland, OR.
Additional practice locations include: Milwaukie, OR.
See Portland Gastroenterologists.