Medical Team

Renowned in their respective fields, the physicians at Sonoran Spine are some of the highest subspecialty-trained orthopedic spine surgeons and interventional pain management providers in the country; holding Fellowship accreditations. With a passion for healing and returning their patients to a pain free life, they focus on the latest minimally-invasive, research-based and state-of-the-art surgical and non-surgical procedures, providing exceptional care for people of all ages.


Michael Chang, MD Michael Chang, MD Spine Surgeon
Dennis Crandall, MD Dennis Crandall, MD Spine Surgeon
Terrence Crowder, MD Terrence Crowder, MD Spine Surgeon


Jason Datta, MD Jason Datta, MD Spine Surgeon
Farhad Mosallaie, DO Farhad Mosallaie, DO, PhD Interventional Pain
Robert A. Waldrop, MD Robert A. Waldrop, MD Spine Surgeon & Musculoskeletal Oncology


Lyle Young, MD Lyle Young, MD Spine Surgeon
Andrew Chung, DO Andrew Chung, DO Spine Surgeon
Matthew Duske, PA-CMatthew Duske, PA-C Physician Assistant


Bryce Hilmo PA-C Bryce Hilmo, PA-C Physician Assistant
Mara Immediato, PA-C Mara Immediato, PA-C Physician Assistant
Vanessa Fisher, PA-C Vanessa Fisher, PA-C Physician Assistant


Katherine Looby, PA-C Katherine Looby, PA-C Physician Assistant
Jelena Macanovic FNP-C Jelena Macanovic, FNP-C Nurse Practitioner
Danielle Mekahel, PA-C Danielle Mekahel, PA-C Physician Assistant


Daniela Pal, PA-C Daniela Pal, PA-C Physician Assistant
Kelli Patterson, FNP-C Kelli Patterson, FNP-C Nurse Practitioner
Candice Rai, PA-C Candice Rai, PA-C Nurse Practitioner


Bert Bednar, DPT Bert Bednar, DPT Physical Therapist
Amy Jones, DPT Amy Jones, DPT Physical Therapist
Jana Kray, PT Jana Kray, PT Physical Therapist


Eric Strode, PTA Eric Strode, PTA Physical Therapist Assistant