Appointments & Scheduling. If you are interested in making an appointment to come to Highlands Oncology for a medical evaluation and/or for treatment, please contact us at one of these numbers: Fayetteville, Arkansas. 3232 N North Hills Blvd. (479) 587-1700, FAX (479) 587-1366. 60 E. Monte Painter Drive (479) 361-2585, FAX (479) 571-4234. 3352 ....