We found 1 provider named 'John O'holleran' nationally.
Dr. John O'Holleran practices surgery. In his practice, Dr. O'Holleran focuses on surgical procedures. He honors Anthem, Blue Cross/Blue Shield, and TRICARE, in addition to other insurance carriers. Dr. O'Holleran attended the University of Nebraska College of Medicine and then went on to complete his residency at Exempla Saint Joseph Hospital, Denver. He is affiliated with Sutter Medical Network, Mills-Peninsula Health Services, and Palo Alto Foundation Medical Group. Dr. O'Holleran has an open panel.
Clinical interests: Achalasia, Sentinel Lymph Node Biopsy, Lymphadenectomy, Heller Myotomy, Surgical Procedures, ... (Read more)