Our APPs
Below is a comprehensive list of our Advanced Practice Providers (APPs), who care for our patients in Orthopedics, Physical Medicine & Rehabilitation, and Rheumatology.
Orthopedic and Sports Medicine APPs
Hip & Knee Reconstruction

William D. Abraham, MD
Hip & Knee Reconstruction
Cranberry/Mars, North Hills

D. Kelly Agnew, MD
Hip & Knee Reconstruction
Butler-Clearview, Slippery Rock

Eric A. Chen, MD
Hip & Knee Reconstruction
Cranberry/Mars, North Hills, Sewickley

Christopher T. Edwards, MD
Hip & Knee Reconstruction
Cranberry/Mars, North Hills

Duane Chess, PA-C
Cranberry/Mars, North Hills
APP for Dr. Chen


Jason Kuchta, MBA, PA-C
Butler-Clearview
APP for Dr. Muzzonigro
Sports Medicine & Shoulder Surgery

Jake D'Antonio, PA-C
Butler-Clearview, Cranberry/Mars, UPMC Lemieux Sports Complex
APP for Dr. Szabo


Jason Vasses, PA-C
North Hills, Slippery Rock, UPMC Lemieux Sports Complex
APP for Dr. Richmond
Hand & Upper Extremity Surgery

Bethany Prince, PA-C
BHS Crossroads, Cranberry/Mars
APP for Dr. Pfaeffle


Jason Takacs, PA-C
North Hills
APP for Dr. Gause
Orthopedic Foot & Ankle Surgery

Jennifer Clark, PA-C
Cranberry/Mars, North Hills
APP for Dr. Edwards


Rebecca Zahniser, PA-C
Butler-Clearview, Slippery Rock
APP for Dr. Saar
Orthopedic Back & Neck Surgery
Additional Orthopedic APPs

Dave Brown, PA-C
North Hills
Independent APP

Multiple Locations
APP for Multiple Teams

Carolyn Hemphill, PA-C
Independence Health System
Hospitalist APP

UPMC Passavant
Hospitalist APP

Trenton M. Gause, MD
Hand & Upper Extremity Care
North Hills

Thomas S. Muzzonigro, MD
Hip & Knee Reconstruction
Butler-Clearview

Corey A. Pacek, MD
Hand & Upper Extremity Care
BHS Crossroads, Slippery Rock

H. James Pfaeffle, MD, PhD
Hand & Upper Extremity Care
BHS Crossroads, Cranberry/Mars

Scott G. Rainey, DO
Orthopedic Back & Neck Care
BHS Crossroads, Slippery Rock

John M. Richmond, MD
Sports Medicine & Shoulder Surgery
North Hills, Slippery Rock, Lemieux Sports

William E. Saar, DO
Orthopedic Foot & Ankle Care
Butler-Clearview, Slippery Rock

S. Joshua Szabo, MD
Sports Medicine & Shoulder Surgery
Butler-Clearview, Cranberry/Mars, Lemieux Sports

Robert L. Waltrip, MD
Sports Medicine & Shoulder Surgery
BHS Crossroads, Cranberry/Mars, Lemieux Sports

Megan Groh Miller, MD
Primary Care Sports Medicine
BHS Crossroads, Slippery Rock
Physical Medicine & Rehabilitation APPs

James L. Cosgrove, MD
Physical Medicine & Rehab
Cranberry/Mars, Slippery Rock

James A. Craig Jr., DO
Physical Medicine & Rehab
BHS Crossroads, Cranberry/Mars

Chen Cui, MD
Physical Medicine & Rehab
BHS Crossroads, Cranberry/Mars, North Hills

Anna K. Gaines, MD
Physical Medicine & Rehab
Butler-Clearview, Cranberry/Mars, North Hills

Edward D. Reidy, MD
Physical Medicine & Rehab
BHS Crossroads, North Hills

Benedict C. Woo, MD
Physical Medicine & Rehab
BHS Crossroads, Cranberry/Mars, North Hills
Rheumatology APPs

Joseph Devich Jr., DO
Physical Medicine & Rehab
BHS Crossroards, North Hills

Betsy F. Shook, MD
Rheumatology
Cranberry/Mars, Slippery Rock

Rashelle Maderitz, DMSc, PA-C
Butler-Clearview, Cranberry/Mars, North Hills, Slippery Rock
APP for Osteoporosis Program