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Our Nurse Practitioners

MaryAnn Dellostretto, RN, CPNP-PC

M. DellostrettoMaryAnn Dellostretto has worked with PMA for more than 25 years as a Certified Pediatric Nurse Practitioner (CPNP). During that time, she has dedicated herself to improving children’s health. MaryAnn received her Nursing degree and her PNP certification from Gwynedd-Mercy College. She is on staff at Mercy Suburban Hospital and serves as a preceptor for nursing students from numerous universities, as well as for medical students, interns and residents. She is a Fellow of the National Certification Board of Pediatric Nurse Practitioners and Nurses, as well as the National Association of Pediatric Nurse Associates and Practitioners. She is certified in Pediatric Advanced Life Support (PALS).

MaryAnn is the eldest of eight children. She has been married to Michael for 24 years and has two daughters, Colleen and Casey, and a son, Michael John. MaryAnn enjoys the mountains, summers at the shore, and an array of family activities.

Susan Wheary RN, MSN, CPNP-PC

S. WhearySusan has been a member of our PMA family since 1986, first as a Receptionist and Office Nurse, then as a Nurse Practitioner after completing her Masters Degree in Nursing and obtaining her Certification as a Nurse Practitioner from Gwynedd Mercy College in 1996. She is certified by the National Certification Board of Pediatric Nurse Practitioners and Nurses in Primary Care and holds Certifications in Pediatric Advanced Life Support (PALS) and Neonatal Resuscitation (NALS). Susan is a Neonatal Resuscitation Instructor and a Safe Sitter® Program Instructor. She is a member of Sigma Theta Tau, the National Honor Society of Nurses, the National Association of Pediatric Nurse Practitioners (NAPNAP) and the Pennsylvania Del/Val Chapter of NAPNAP. Susan is also a Professional Health Consultant for the American Academy of Pediatrics ECELS (Early Childhood Education Linkage System) program. In addition to working with PMA, Susan served as both a staff nurse on the Pediatric/Medical/Surgical/Oncology unit (1987-1995) and as a Pediatric Clinical Specialist (2000-2003) at Mercy Suburban Hospital. She continues to offer her support as a Pediatric Clinical Consultant for the hospital. Susan enjoys spending time with her husband Eric and their two children Samantha and Dylan as well as gardening, camping and a variety of arts and crafts.

Kathleen M. Armstrong, MSN, CPNP-PC

Kathleen ArmstrongKatie is the newest addition to PMA.  She joined us as a Pediatric Nurse Practitioner in October, 2009.  She completed both her undergraduate and graduate studies with honors at Gwynedd Mercy College.  Prior to becoming a Nurse Practitioner, Katie worked as a Registered Nurse in the Operating Room and Neonatal Intensive Care Unit (NICU) at St. Christopher’s Hospital for Children, The Children’s Hospital of Philadelphia, and Lankenau Hospital.  During this time, she became certified in Neonatal Resuscitation (NRP) and as a Breastfeeding Resource Nurse.  Additionally, she was involved with the Safety Town Program at Lehigh Valley Hospital, educating children in the community on the importance of safety at home and in school.  Katie is certified by the Pediatric Nursing Certification Board as a Primary Care Pediatric Nurse Practitioner, and is a member of the National Association of Pediatric Nurse Practitioners (NAPNAP), the Pennsylvania Del/Val Chapter of NAPNAP, the Pennsylvania Coalition of Nurse Practitioners, and Sigma Theta Tau International Honor Society of Nurses.  She is excited to be joining the wonderful family at PMA, where her passion for the health and well-being of infants, children, and adolescents is shared by all on staff. 

Pediatric Medical Associates of Abington
1077 Rydal Road Suite 300
Rydal PA 19046
Phone 215-572-0425
Fax 215-572-5929
Pediatric Medical Associates of Norristown
160 West Germantown Pike Suite D2
East Norriton, PA 19401
Phone 610-277-6400
Fax 610-275-8861
For after hours help, call
610-992-4916