Greentree Providers

Joseph Aracri D.O.

Education

Undergraduate: Allegheny College
Medical School: University of Medicine & Dentistry School of New Jersey.  School of Osteopathic Medicine
Pediatric Training: Mercy Hospital of Pittsburgh

Specialty

Dr. Aracri’s special interests include childhood obesity, developmental pediatrics, and sports medicine.

Additional Information

Dr. Aracri has practiced medicine as part of Pediatric Alliance since 1998, and served as its president from 2009 through 2014.   Since 2014, Dr. Aracri has also served as the Chair of the Department of Pediatrics for Allegheny Health Network, leading a Department of Pediatrics with more than 120 affiliated physicians, providing a broad range of inpatient and outpatient care, including general pediatrics, pediatric critical care, asthma, allergy and immunology, and neonatology services.

Aleksandra Grudziak M.D.

Education

Medical School: The University School of Medicine in Poznan, Poland
Pediatric Training Mercy Hospital of Pittsburgh

Specialty

Dr. Grudziak’s special interests include pediatric gastrointestinal conditions, allergy and immunology.

Mary Zervos D.O.

Education

Undergraduate: West Virginia University
Medical School: West Virginia School of Osteopathic Medicine
Pediatric Training: Mercy Hospital in Pittsburgh

Specialty

Dr. Zervos’s special interests include preventive care, patient education and child safety.

Additional Information

Dr. Zervos has been practicing pediatrics in the Pittsburgh area since 1995.  She has been with Pediatric Alliance since 2004.  She lives in Mars, PA with her husband and 2 children.

Chelsea Raffa CRNP

Education

Undergraduate: Penn State University – Bachelor of Science in Nursing
Medical School: Carlow University – Master of Science in Nursing

Additional Information

Chelsea Raffa earned her Master of Science in Nursing at Carlow University and her Bachelor of Science in Nursing at Penn State University. She is also licensed as a Certified Registered Nurse Practitioner (CRNP) and a Family Nurse Practitioner (FNP-C) certified by the American Academy of Nurse Practitioners. Chelsea has volunteered at Highmark Caring Place, been a medical volunteer at the USGA US Open, and volunteered as a cap counselor at Camp AIM, a summer camp for children with special needs.

Chelsea is a born and raised Pittsburgher. In her spare time, she likes skiing, biking, baking/cooking, traveling, listening to live music, and watching college football.