Wexford Providers

Michael Petrosky M.D.


Undergraduate: Washington & Jefferson College
Medical School: West Virginia School of Medicine

Additional Information

Dr. Michael Petrosky graduated Summa cum Laude from Washington & Jefferson College in 2004, and went on to attend West Virginia University School of Medicine, where he received the Ferrari Award for Academic Excellence in Pediatric Clerkship. After completing his residency, Dr. Petrosky practiced pediatrics at Children’s Medical Group in Akron, Ohio for over two years.

Being born and raised in Latrobe, PA with five brothers and sisters, Dr. Petrosky decided to come back home and to start his career with Pediatric Alliance. He and his wife Angela, a Physician’s Assistant and Pittsburgh native, are glad to be back in the ‘Burgh with their two young children.

Dr. Mike, as he likes to be called, strongly believes in overall wellness and to prevent disease or injury.  He strives to obtain these goals through thorough well visits and immunizing patients against many infectious diseases.  However, Dr. Mike knows children get sick and/or hurt at times.  At which point, he will compassionately help on the road to recovery.

Brian W. Donnelly, M.D., I.B.C.L.C.


Undergraduate: Bachelor of Science, University of Notre Dame
Medical School: State University of New York at Syracuse


Dr. Donnelly has special interest in breastfeeding. He was the initial recipient of the Allegheny County Health Department’s Breastfeeding Advocacy Award. He is a member of the Academy of Breastfeeding Medicine and can perform the frenulotomy procedure for tongue-tied infants who have trouble nursing.

Additional Information

Dr. Donnelly was selected Best Pediatrician by Pittsburgh’s City Paper in 2010, 2014, and 2017. He was also named Best Pediatrician by the Cranberry Eagle in 2014.

Amy Miller CRNP


Undergraduate: BSN – Duquesne Univeristy
Master’s Degree: MSN Family Nurse Practitioner – Carlow University

Additional Information

Prior to coming to Pediatric Alliance, Amy was a member of the U.S. Army Nurse Corps working as a registered nurse at Tripler Army Medical Center in Honolulu, HI. In addition Amy has worked at Ft. Belvoir Community Hospital and UPMC Children’s Express Care in Washington, PA.

Amy is from Eighty-Four, PA, and she currently lives in Canonsburg with her husband and their three children. In her spare time, she likes to run and snowboard. She also enjoys cooking, baking, and coffee.