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.

Dennis Crandall, MD

Dennis Crandall, MD Spine Surgeon

Jason Datta, MD

Jason Datta, MD Spine Surgeon

Terrence Crowder, MD

Terrence Crowder, MD Spine Surgeon

Michael Chang, MD

Michael Chang, MD Spine Surgeon

Lyle Young, MD

Lyle Young, MD Spine Surgeon

Farhad Mosallaie, DO

Farhad Mosallaie, DO, PhD Interventional Pain

Robert A. Waldrop, MD

Robert A. Waldrop, MD Spine Surgeon & Musculoskeletal Oncology

Daniela Pal, PA-C

Daniela Pal, PA-C Physician Assistant

Mara Immediato, PA-C

Mara Immediato, PA-C Physician Assistant

Katherine Looby, PA-C

Katherine Looby, PA-C Physician Assistant

Bryce Hilmo PA-C

Bryce Hilmo, PA-C Physician Assistant

Summer Taylor PA-C

Summer Taylor, PA-C Physician Assistant

Vanessa Lo, PA-C

Vanessa Lo, PA-C Physician Assistant

Jelena Macanovic FNP-C

Jelena Macanovic, FNP-C Nurse Practitioner

Yolanda Smith, RN, MSN, FNP-C

Yolanda Smith, RN, MSN, FNP-C, Nurse Practitioner

Amy Jones, DPT

Amy Jones, DPT Physical Therapist

Bert Bednar, DPT

Bert Bednar, DPT Physical Therapist

Jan Revella, RN

Jan Revella, RN Director, Research & Education