Physicians &
Clinical Team

Board-certified specialists with a wealth of experience

Meet Our Team

They know a lot about you as a patient. You want to know more about them as doctors. The Tri Rivers clinical team can diagnose and treat a full scope of musculoskeletal conditions. Click on your physician’s name to learn more about his or her education, training and areas of specialization.

Dr Abraham
William D. Abraham, M.D.

Hip & Knee Reconstruction
Cranberry/Mars, North Hills
 


D. Kelly Agnew, M.D.

Hip & Knee Reconstruction
Butler-Clearview, Slippery Rock
 


Thomas S. Muzzonigro, M.D.

Hip & Knee Reconstruction
Butler-Clearview
 


Michael W. Weiss, M.D.

Hip & Knee Reconstruction
North Hills
 


Scott G. Rainey, D.O.

Orthopedic Back & Neck Care
Butler-BHS East, North Hills
 


William E. Saar, D.O.

Orthopedic Foot & Ankle Care
Butler-Clearview, Cranberry/Mars
 


Trenton M. Gause, M.D.

Hand & Upper Extremity Care
Cranberry/Mars, North Hills
 


Corey A. Pacek, M.D.

Hand & Upper Extremity Care
Butler-BHS East, Saxonburg, Slippery Rock
 


H. James Pfaeffle, M.D., Ph.D.

Hand & Upper Extremity Care
Butler-BHS-East, Cranberry/Mars
 


John M. Richmond, M.D.

Sports Medicine & Shoulder Surgery
North Hills, Slippery Rock, UPMC Lemieux Sports Complex
 


S. Joshua Szabo, M.D.

Sports Medicine & Shoulder Surgery
Butler-Clearview, UPMC Lemieux Sports Complex
 


Robert L. Waltrip, M.D.

Sports Medicine & Shoulder Surgery
Butler-BHS-East, Cranberry/Mars, UPMC Lemieux Sports Complex
 



Anna M. Dumont, D.O.

Sports Medicine -- Nonsurgical
Cranberry/Mars, North Hills
 


Megan Groh Miller, M.D.

Sports Medicine -- Nonsurgical
Butler-BHS East, Slippery Rock
 

 


James L. Cosgrove, M.D.

Physical Medicine & Rehabilitation
Cranberry/Mars, Slippery Rock
 


Judith H. Esman, M.D.

Physical Medicine & Rehabilitation
North Hills
 


Edward D. Reidy, M.D.

Physical Medicine & Rehabilitation
Butler-BHS East, North Hills
 


Benedict C. Woo, M.D.

Physical Medicine & Rehabilitation
Aspinwall, Butler-BHS East, Cranberry/Mars
 


James A. Craig Jr., D.O.

Physical Medicine & Rehabilitation
Butler-BHS East, Cranberry/Mars
 


Anna K. Gaines, M.D.

Physical Medicine & Rehabilitation
Butler-Clearview, Saxonburg



Betsy F. Shook, M.D.

Rheumatology
Cranberry/Mars, Slippery Rock
 


Joseph Devich Jr., D.O.

Rheumatology
Butler-BHS East, North Hills