John R Zelko, MD, FACS Specialist Specialty: General Surgery Clinical Interests: Breast Cancer, Gall Bladder, Hernia Surgery, Oncology: Surgical, Varicose Veins Languages: English, Interpreters Available Gender: Male Education and Certification Medical School: University of Hawaii. Residency: University of Colorado Health Science Center. Internship: University of Colorado Health Science Center. Contact Information Practice Name: The Oregon Clinic PC Surgeons, Laparoscopic Office Locations Primary Address The Oregon Clinic PC Surgeons, Laparoscopic 1040 NW 22nd Ave, Ste 560 Portland, OR, 97210 Phone: 503 281-0561 Fax: 503 281-0575 Clinic Hours: Mon - Fri 8:30AM - 5:00PM Hospital Locations Primary Address Legacy Good Samaritan Medical Center 1015 NW 22nd Ave. Portland, OR, 97210 Phone: 503-413-7711 Toll-Free: 1-800-733-9959