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Physician Directory

Dr. John W. Roark Jr, MD


  • 300 Frank H Ogawa Plz Ste 450
    Oakland, CA 94612
  • 2 Locations
  • (510) 444-3297

Dr. Roark Jr's Overview

Dr. John W. Roark Jr graduated from the University of California, Los Angeles David Geffen School of Medicine in 1977. He works in Oakland, CA and 1 other location and specializes in Gastroenterology and Internal Medicine. Dr. Roark Jr is affiliated with Alta Bates Summit Medical Center, Alta Bates Summit Medical Center Herrick Campus and John Muir Medical Center Walnut Creek. He speaks View More

Gender: Male

Languages Spoken: English, Spanish

Dr. Roark Jr's Experience

Years in Practice: 38

Conditions Treated by Dr. Roark Jr

  • Inflammatory bowel disease (IBD)
  • Benign polyps of the colon
  • Constipation
  • Diverticulosis
  • Gastritis and duodenitis
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Procedures Performed by Dr. Roark Jr

  • Colonoscopy, flexible
  • Endoscopy, upper gastrointestinal (UGI)
  • Sigmoidoscopy
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Dr. Roark Jr's Specialties

Gastroenterology, Internal Medicine

Dr. Roark Jr's Education & Training

Medical School: University of California, Los Angeles David Geffen School of Medicine; Graduated 1977

Dr. Roark Jr's Accepted Insurance

  • Aetna Choice POS II
  • Aetna HMO
  • Aetna HMO Deductible Plan CA members only
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • BCBS Blue Card PPO
  • Blue Cross CA CaliforniaCare HMO
  • Blue Cross CA PowerSelect HMO
  • Blue Cross CA PPO
  • Blue Cross CA Select Plus HMO
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Dr. Roark Jr's Office Information & Appointments

Office Locations

*This physician has multiple office locations. See Office Information for details.

Other Physicians in Dr. Roark Jr's Practice

Office Locations