Meet The Staff

Owner / CEO

Mark Matta D.O. Board Certified Psychiatrist
Mark Matta, D.O. is a native of New Castle and is a graduate of Neshannock High School. He attended Allegheny College and received his bachelor’s degree in Neuroscience with a dual minor in Classical History and Chemistry. After graduating from Allegheny, he went on to attend the Philadelphia College of Osteopathic Medicine in Philadelphia, PA. Dr. Matta completed his residency in adult psychiatry at Allegheny General Hospital in Pittsburgh, PA. Upon completion of the residency program, Dr. Matta joined his father, Shoukry Matta, M.D., in private practice at Psych Med Associates in 2007. He successfully completed and received his board certification in psychiatry from the American Board of Psychiatry & Neurology in 2008 and remains board certified to this day.
Presently, Dr. M. Matta is the CEO of Psych Med Associates, P.C. and the director of the department of psychiatry at Jameson Health Systems. He is also the medical director of Magellan Health in Cambria County as well as the medical director of People in Need and Community Alternatives in New Castle. Dr. M. Matta holds associate clinical professor titles at the physician assistant programs at Chatham University, the University of Mount Union, and Marrietta College. Chatham University has awarded Dr. M. Matta as the psychiatric preceptor of the year in 2012 and clinical preceptor of the year in 2013. He has also been awarded Best of the Best Psychiatrist by the New Castle News from 2009-2017. “Elected as FELLOW” American Psychiatric Association 2015 in recognition of his significant contributions to the field of psychiatry.

Among his interests, Dr. Matta enjoys being involved in his Orthodox Christian faith, spending time with his family, watching movies, traveling and playing sports.

Medical Providers

Terri Sharo
Terri Sharo Certified Registered Nurse Practitioner
Terri started with Psych Med Associates in 2009. She originally earned her nursing degree from Sharon Regional Health System and a Bachelor of Science in nursing from Penn State University. Terri eventually went on to obtain a Master of Science in nursing with a Psychiatric Mental Health Nurse Practitioner specialty from Drexel University. Her work history includes over 19 years in behavioral health experience, starting with the inpatient behavioral health unit at Sharon Regional Hospital as well as working for Sharon Community Health Center and Primary Health Network. Terri enjoys spending time with her grandchildren when she is not working
Jonathan Fellion
Jonathan FellionCertified Registered Nurse Practitioner
Jonathan joined Psych Med Associates in 2013 after retiring from the Army and a full-time career working at the VA Hospital. Jonathan earned his Bachelor’s degree in psychology from the University of Tampa. He went on to earn a nursing degree from Shadyside Hospital and Bachelors in Nursing from Carlow College. He ultimately received his Certified Nurse Practitioner degree from the University of Maryland. Jonathan served in the Army for 22 years as a nurse and was deployed to both Afghanistan and Korea during this time. He continues to enjoy traveling in his spare time.
Shelby Hites
Shelby HitesCertified Registered Nurse Practitioner
Shelby joined Psych Med Associates in 2015 as a nurse practitioner specializing in both adult and child psychiatry. Shelby has worked for Butler Health System on the inpatient behavioral health unit for over 12 years where she remains a casual employee. She is also part-time faculty for Robert Morris University, teaching undergraduate nursing clinical students for their psychiatric rotation. She attended Robert Morris University, obtaining a BSN in 2008. Shelby continued on to eventually earn her Doctor of Nursing Practice in 2013. She enjoys spending time with family and friends, as well as outdoor activities such as fishing and sports.
Emily Starn
Emily StarnCertified Registered Nurse Practitioner
Emily joined the Psych Med Associates team in 2016 as a Psychiatric Mental Health Nurse Practitioner student. Emily completed her Bachelor of Science in nursing at Carlow University in 2009. She is also a Family Nurse Practitioner with a Doctorate in Nursing Practice from Robert Morris University, 2016. Her experiences include an extensive medical background working in patient, intensive care and home health nursing. Emily is passionate that mental health and physical health should be treated together, as they greatly impact one another, whether by collaboration of providers in mental and physical health or dually qualified providers in order to provide comprehensive and improved quality of life for clients.
Lori Sheehy
Lori SheehyLicensed Practical Nurse
Lori joined the team in 2016 as the nurse. She brings with her a diversified background including working for Jameson Hospital, Discovery House and most recently Irene Stacey in the residential program for adults with severe mental illness. Lori graduated from the Lawrence County Career and Technical Institute as Licensed Practical Nurse. In her spare time she enjoys fiber arts, sign language and spending time with her grandkids.
Nicole DiMarco
Nicole DiMarcoCertified Physician Assistant
Nicole DiMarco, BS, MS, PA-C, is a certified Physician Assistant who specializes in Psychiatry. She has a passion for treating mental illness and helping individuals reach their full potential. Originally from Florida, she graduated from Florida Atlantic University with a Bachelor’s Degree in Biological Sciences. She then went on to Keiser University to earn her Master’s Degree in Physician Assistant studies and graduated in 2013. She has experience working at Broward Health Medical Center’s Psychiatric Unit, one of the largest hospitals in South Florida, alongside some of the world’s most renowned Psychiatrists. She also has worked in other sub-specialties including Outpatient care, Addiction, and Assisted Living Facilities. Lastly, she is a devoted mother of two that loves wellness and healthy living. She is a certified yoga instructor, avid reader, and enjoys going on family adventures.

Counseling Staff

Georgia Ross
Georgia RossLicensed Clinical Social Worker
Georgia joined the Psych Med team in 2005. Georgia earned a bachelor of science in biology from Westminster College. She then earned a Master of Public Health degree from the University of Pittsburgh and later earned a Master of Social Work degree from there as well. She worked for over 30 years at the former St. Francis Hospital prior to it becoming part of the Jameson Health System. During that time she held multiple positions and job duties as a clinical social worker. Her behavioral health experience includes grief and bereavement, chronic pain and geriatrics counseling. She presently collaborates as a field instructor with Youngstown State University’s Social Work Department. Outside of work, Georgia enjoys reading, music and travel.
Abbie Flinner
Abbie FlinnerLicensed Professional Counselor
Abbie completed her undergraduate and graduate work at Slippery Rock University, earning a bachelor’s degree in Psychology and a Master’s degree in Community Counseling. Her course of study included both an emphasis in working with youth and adolescents and an emphasis in working with adults. She has also completed course work in assisting those struggling with addiction. Abbie worked as a therapeutic staff support while earning her degrees, then as a Behavioral Specialist Consultant and a Mobile Therapist following the obtaining of her master’s degree. Prior to joining Psych Med she served as a therapist and assistant director for Human Service Center’s Caritas residential treatment facility. While with the Psych Med team, Abbie has become a Licensed Professional Counselor and also worked as Lead Counselor for White Deer Run’s outpatient facility. Currently, Abbie works part-time as an outpatient counselor for Psych Med Associates. Abbie enjoys spending time with her family and making hand-made craft items.

Managing Staff

Katelyn Dominelli
Katelyn DominelliPractice Manager
Katelyn obtained her Bachelors in Education and Psychology from Slippery Rock University, and later earned a Master of Science in Psychology with an emphasis on clinical research. She previously worked for Jameson Hospital for 10 years, most recently as the Assessment Coordinator of Behavioral Health Services. While at Jameson, Katelyn performed numerous job functions at the inpatient and outpatient behavioral health units, cancer center, and emergency department. She joined Psych Med full-time in 2013 as the Practice Manager, where she continues to enjoy being a part of the psychiatric treatment team and business development. She enjoys spending time with her family, rooting for the Steelers and real estate investment.
LyndaOffice Manager
Lynda has been with Psych Med Associates since the beginning in 1978. She originally worked for Dr. Shoukry Matta, prior to his son Mark taking over the business. Her loyalty to the company has always been at the center of her work ethic and she has been at the center of the many growing changes that have occurred over the years. Lynda has been a marathon runner for many years and continues to run in local races.
LisaNurse Manager
Lisa joined Psych Med Associates in 2017. She is a registered nurse and graduate of Jameson Hospital School of Nursing. She has experienced many sides of healthcare including CNA care, acute care, and management. Most of her nursing career has been spent in long term care management, including the oversight of patients with mental health needs. In her free time she enjoys spending time with her family, shopping, and outdoor activities.

Support Staff

JudyFile Clerk
Judy originally joined the team in 2012 as a part-time transcriptionist and later became the file clerk. Judy was a transcriptionist at Ellwood City Hospital for 12 years and also worked at the former St. Francis for 30 years. Judy enjoys shopping and spending time with her grandchildren.
Danielle graduated from Erie Business Center with a degree in Medical Secretary. She joined Psych Med Associates in 2012, initially as a transcriptionist and later became a secretary in charge of medication prior authorizations and medical records. Danielle enjoys reading, sewing and electronic games in her spare time.
Kim joined Psych Med Associates in 2012 as a secretary/receptionist and now runs the office front window. Prior to joining the team she worked as a home health caregiver for many years. Kim enjoys the outdoors and spending time with her family.
TinaMedical Biller
Tina joined Psych Med full time in January 2015 as the in-house biller. She attended BC3 for Medical Billing and Coding, and has been working in the field for 30 years. Prior to joining the office she worked at Jameson Hospital for twenty years in the admitting/registration department. Most recently she worked for Medsys Consulting. When Tina is not at work she likes spending time with family and friends, and doing work around her house.