OSPI offers the top orthopedic surgeons in Gilbert AZ and the East Valley. Drs. Mahoney, Macqueen, Stewart and Clouse offer minimally invasive General, Sports and Joint Replacement expertise.

Physical Therapy

Whether you are pre or post-operative, OSPI’s East Valley physical therapy team works with you on both active and passive treatments. Your will be in the best hands with our licensed physical therapists!


The Gilbert chiropractors at OSPI offer a plethora of nonoperative pain relief options such as manipulations, laser therapy, physiotherapy and electrical stimulation.

Family Practice

OSPI offers comprehensive family practice services including allergy testing, BHRT, medical weight loss, aesthetics and full check ups.

Medical Weight Loss

Patients routinely experience dramatic, healthy weight loss with the customized programs at OSPI. The programs combine nutrition, exercise and prescription weight loss options.

Performance Training

OSPI’s integrated team of healthcare providers work with both amateur and professional athletes to maximize one’s performance with sport specific programs.

Pain Management

OSPI’s Board Certified, Fellowship Trained pain doctor offers both medication management and interventional procedures with exceptional outcomes!

Benjamin R. MacQueen, MD

Sports Medicine, Arthroscopy, Knee and Shoulder Reconstruction, General Orthopedics

benjamin_detailFollowing his medical training, Dr. MacQueen moved to Virginia to do an internship in General Surgery at the University of Virginia in Charlottesville, VA. He then completed a four year Orthopedic Surgery residency program at the Medical College of Virginia in Richmond, VA. While in Richmond, Dr. MacQueen completed a fellowship in Arthroscopy and Sports Medicine.

When not at work, Dr. MacQueen enjoys spending time with his wife and five children. His other interests include watching and playing most sports (especially football and basketball). He also participates in various church activities including working with the youth and the boy scouts.


Board Certified – American Board of Orthopedic Surgery
Fellowship Training – Arthroscopic Surgery and Sports Medicine

Hospital Affiliations

Mercy Gilbert Medical Center
SurgCenter Gilbert Ambulatory Surgery Center
Chandler Regional Medical Center
Arizona Orthopedic Surgical Hospital
Arizona Spine and Joint Hospital

Professional Organizations

American Academy of Orthopedic Surgery (AAOS)
Arthroscopy Association of North America (AANA)
American Orthopedic Society of Sports Medicine (AOSSM)

Overview of Common Knee Sports Injuries

In 2014, there were 10.4 million visits to a doctor’s office because of knee injuries. The knee is a complex joint with multiple components. This complexity makes it vulnerable to a variety of injuries. Knee… Read more >

Physical Therapy After Total Hip Replacement

One of the most commonly performed orthopedic surgeries is a total hip replacement (THR). The surgical techniques and prosthesis used for a THR have improved over the years, allowing the patient to now achieve optimal… Read more >

Recovery after Anterior Approach Total Hip Replacement

Anterior hip replacement is a less invasive approach to hip joint surgery. With the anterior approach to total hip replacement, the orthopedic  surgeon in Gilbert AZ accesses the joint from the anterior (front) of the… Read more >