Our Staff

Ruth Hazen, MD, FAAP

Dr. Hazen received her MD from the University of Pittsburgh in 1976, and completed  residencies in Pediatrics and Child Psychiatry at University of California, Irvine. She then completed a fellowship in Psychosomatic Medicine at Boston Children’s Hospital. She joined Lynnfield Pediatrics in 1986. She is interested in the physical and emotional development of all children. She enjoys working closely with each family and serving as an advocate for their children. Additionally, Dr Hazen has been on the clinical faculty of Northeastern University since 1999, mentoring Physician Assistant students in their pediatrics rotations.

John Schey, MD, FAAP

Dr. Schey received his MD from the University of California, San Diego in 1972, and completed his internship and residency in Pediatrics at Children’s Hospital of Pittsburgh. He then completed a fellowship in Developmental Pediatrics at Boston Children’s Hospital. He worked in Pittsburgh and California before founding Lynnfield Pediatrics in 1983. He enjoys working with children of all ages and their families, and he tries to make his practice as personalized as possible.

Jonah Schey, MD, FAAP

Dr. Jonah received his MD from Tufts University in 2013.  He stayed at Tufts to complete his Pediatrics internship and residency, where he received the NEQCA Excellence in Primary Care Award.  After residency, he moved to the San Francisco Bay Area and worked in a primary care pediatrics practice for three years, before returning home to Boston and joining Lynnfield Pediatrics.  He enjoys taking time to get to know his patients and their families so he can provide the best possible care for them.  Outside of pediatrics, he likes running and casual sports, trying to learn chess, and going to the occasional cultural event.

Jacqueline Busa, PA-C

Jacqueline is the most recent addition to the staff after receiving a Masters of Science in Physician Assistant Studies from Northeastern University in 2021. She previously attended Trinity College where she studied biochemistry, and she worked as an Emergency Medical Technician in the Greater Boston area before obtaining her PA training. In her spare time, Jacqueline enjoys singing, walking dogs, figure skating, running, and reading. 

Shreegouri Savkur, MBBS, PA-C

Shree graduated from Karnatak Medical College in India with M.B.B.S degree and worked as a family practice physician in India for a few years. After moving to Massachusetts, she attended the Physician Assistant program at Northeastern University, and joined Lynnfield Pediatrics in 2009. She has also worked at the Mass General Hospital for Children at North Shore Medical Center Pediatric Emergency room. Shree enjoys all areas of pediatrics, but has special interest in the care of adolescents. She enjoys working with children who have complex medical issues. Outside the office, she enjoys cooking, traveling, and spending time with her family.

Noah Schey

Noah has been a trusted employee since 2007. He graduated Summa Cum Laude from Salem State University with a Major in Finance and a Minor in Decision Research Science in 2010. He is the Office Manager, and works hard to make sure the office runs smoothly. In his free time, Noah exercises regularly and explores his interests in fitness and nutrition.

Cora Ruiz, RN

Cora Ruiz joined us in July of 2020. She received her BSN from Salem State University in 2018. She began working as a Registered Nurse at Lahey Hospital on a inpatient cardiac unit.   She enjoys working with pediatrics and getting to know each patient and their families. Outside of work Cora enjoys spending time with her family, traveling and exercising. 

Andrea Stevenson, RN

Andrea joined the practice in 2007 upon graduating from UMass Lowell. When not working, she enjoys reading, walking, and spending time with family.

Joanna Lexth

Joanna began working at Lynnfield Pediatrics in 1989. She works at the reception desk and in the billing department. Previously, she taught elementary grades in the Peabody and North Reading school systems. Joanna has two daughters and four grandchildren, enjoys traveling with her husband, and enjoys crafts of all sorts.

Lisa Corcoran

Lisa has been with Lynnfield Pediatrics in a variety of jobs since April 1989. Previously, she was an early childhood education teacher. She is the mother of one son. She likes hiking, cooking and entertaining.

Joan Flammia

Joan has been with Lynnfield Pediatrics since 2008, but has been affiliated with the office since the birth of her son in 2003. As one of the receptionists, she enjoys meeting and getting to know each of the families that attend the practice. Prior to coming to Lynnfield Pediatrics, she worked as an administrative officer at Harvard Law School for many years.