Patient Portal - O'Connor Medical Group Internal Medicine and Pediatrics. Patient Portal - O'Connor Medical Group Internal Medicine and Pediatrics. ... O'Connor Medical Group 3075 Southwestern Blvd, Suite 100 Orchard Park, NY 14127 Phone: (716) 712-0490 Fax: (716) 712-0615. Menu. HOME; OUR STAFF; OUR OFFICE;.