DR. John W Roark, MD is a gastroenterology internal medicine in Oakland, CA with 47 years of experience. The provider is an internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs. DR. John W Roark, MD NPI is 1609834266. The provider is registered as an individual entity type.
The NPPES NPI record indicates the provider is a male.
Education
Medical School: UNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduation Year:1977
The provider's business location address is:
300 FRANK OGAWA PLAZA
STE 450
OAKLAND, CA
ZIP 94612
Phone: (510) 444-3297
Fax: (510) 548-2701
The NPI 1609834266 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Part B (Clinical Laboratory and Imaging), Durable Medical Equipment, Part A Home Health Agency (HHA), Power Mobility Devices.
The enumeration date for this NPI number is 5/3/2006 and was last updated on 5/1/2013.