We found 1 provider named 'John O'holleran' nationally.
Dr. John O'Holleran works as a surgeon in Redwood City, CA. He attended the University of Nebraska College of Medicine and then went on to complete his residency at Exempla Saint Joseph Hospital, Denver. Areas of particular interest for Dr. O'Holleran include surgical procedures. Anthem, Blue Cross/Blue Shield, and TRICARE are among the insurance carriers that Dr. O'Holleran honors. His hospital/clinic affiliations include Sutter Medical Network, Mills-Peninsula Health Services, and Palo Alto Foundation Medical Group. Dr. O'Holleran's practice is open to new patients.
Clinical interests: Achalasia, Sentinel Lymph Node Biopsy, Lymphadenectomy, Heller Myotomy, Surgical Procedures, ... (Read more)