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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 (7)

The overall average patient rating of Dr. Barry Zamost is Excellent. Dr. Zamost has been reviewed by 13 patients who have provided 7 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.8
Promptness 4.9
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. Barry Zamost, MD is board certified in 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. Zamost graduated from Boston University . He has 4 awards.

Castle Connolly's Top Doctors™ (2012 - 2013)
Patients' Choice Award (2008 - 2009, 2011 - 2014)
Compassionate Doctor Recognition (2009, 2011 - 2014)
On-Time Doctor Award (2009, 2014)


Dr. Zamost has 7 hospital affiliations:

  • Los Alamitos Medical Center 
  • Anaheim Memorial Medical Center 


  • Spanish

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Additional Information
Dr. Barry Jay Zamost MD is a male Internist, has 35 years of experience and practices in Gastroenterology.
Where does Dr. Barry J. Zamost practice?
Dr. Barry Zamost has 2 office locations.
Dr. Barry Zamost practices Gastroenterology near Long Beach, CA.
Additional practice locations include: Los Alamitos, CA.
See Long Beach Gastroenterologists.