Dr. Petersen graduated from the Medical College of Georgia, School of Medicine. He completed his residency and fellowship at the University of Michigan Hospitals and Health Centers.
Dr. Petersen is board certified in psychiatry and adolescent and child psychiatry.
Dr. Mahr graduated from Allama Iqbal Medical College. She completed her residency at the University of Texas Health Science Center – Houston and the Milton S Hershey Medical Center.
Dr. Mahr’s specialty is adolescent and child psychiatry.
Dr. Hillwig-Garcia graduated from Penn State University College of Medicine, where she also completed her Adult Psychiatry Residency and a Child & Adolescent Psychiatry Fellowship.
Dr. Hameed is the Pennsylvania Psychiatric Institute (PPI) interim Medical Director.
He graduated from Allama Iqbal Medical College. Dr. Hameed completed his residency at SUNY Health Science Center in Syracuse, New York. He serves on Pennsylvania Psychiatric Institute’s Medical Executive Committee as President. Dr. Hameed is board certified in psychiatry.
Specialties
Child & Adolescent Psychiatry
Professional Education
Fellowship, Psychiatry, Child & Adolescent
SUNY Upstate Medical University, College of Medicine, Syracuse – 2008
Residency, Psychiatry
SUNY Upstate Medical University, College of Medicine, Syracuse – 2006
M.B., B.S.
Allama Iqbal Medical College, Pakistan – 2000
Dana Schirk, MD joined us on August 1, 2021. She will provide adult inpatient services at PPI.
Dr Schirk comes to us from Rutgers Robert Wood Johnson Medical School, where she was Chief Resident. She attended medical school at Penn State College of Medicine, and holds a BS in Biology with minors in Spanish and Anthropology from Ursinus College in Collegeville, PA.
On April 1, Dr. Fatima Masumova joined the department as an Assistant Professor of Psychiatry and Behavioral Health, working with the PPI Child Outpatient team. She is triple-boarded in psychiatry, child and adolescent psychiatry and forensic psychiatry. Dr. Masumova comes to us from private practice with Harrison Forensic Psychiatry, LLC in New Jersey. She has experience as a full time psychiatrist at Rutgers University’s University Correctional Health Care providing outpatient and inpatient care as well as risk assessment and sexually violent predator evaluations and reports. She received a BS in Biological Sciences and History from Rutgers University, completed Medical School at West Virginia School of Osteopathic Medicine, residency at the University of Tennessee Health & Sciences Center, child and adolescent psychiatry fellowship at Hofstra Northwell, and a forensic fellowship at Rutgers Robert Wood Johnson Medical School.
Elizabeth Smith, CRNP, joined PPI Medical Services on October 24, 2019.
Ms. Smith brings her background in psychology and nursing together to her role as medical CRNP at PPI. She completed a B.S. in Psychology from the University of Pittsburgh and worked in a residential treatment facility and an inpatient psychiatric facility before returning to school for nursing. She received an A.D.N. from HACC, a B.S.N. from Penn State University, and a M.S.N. from Millersville University as a FNP. She has worked at Holy Spirit Hospital as a telemetry and ICU float nurse and at PSHMC in the HVICCU.
Arianna Waid PMHNP-BC joined PPI in October 2020 working in the Child Outpatient 3rd Street Clinic. Ms. Waid comes to us from Allegheny Heath Network’s St. Vincent Hospital in Erie, PA. where she worked as a Psychiatric RN. She earned her Masters of Science in Nursing, her Psychiatric Mental Health Nurse Practitioner and her Certificate in Forensic Mental Health from Drexel University in Philadelphia.
Dr. Singh was our Chief Resident for the year 2017-18 and the State Resident Representative for PPI (2016-18), He recently finished his research addiction fellowship at Yale University. Prior to coming to us as a resident, Dr. Singh completed his Psychiatry training at the Manchester Deanery NHS, UK. Dr. Singh joined us an Assistant Professor on September 1, 2019. He joins our inpatient team at PPI. He will also work with the outpatient addiction services team at PPI.
