David J. Cooper, M.D., Ph.D.

Dr. Cooper was born (1940) and educated in England. After attending The Norton Knatchbull Grammar School in Ashford, Kent, he attended the University of London, obtaining high honors in Chemistry, with the award of a B.Sc. Degree in 1962. He pursued graduate studies at London's renowned Imperial College of Science and Technology, working under the supervision of Sir Derek H.R.Barton, F.R.S., Nobel Laureate, and was awarded a Ph.D. In Organic Chemistry in 1965 for his research on potential anti-cancer agents. Following a post-doctoral year of research in Molecular Biology at Baylor University College of Medicine in Houston, Texas, Dr. Cooper took a position as Research Associate with the Schering Corporation in Bloomfield, N.J. During his tenure there (1966 – 1971) he led the group that developed the antibiotic Gentamicin – a drug widely used today in the treatment of severe infection and the treatment of 'pink eye'.
In 1976, following a stint as a Research Fellow for SmithKline in Philadelphia, Dr. Cooper was accepted to the prestigious Ph.D. To M.D. Program at the University of Miami, Fl., graduating in 1978 with an M.D. After completing an internship in Pediatrics at the Orlando Regional Medical Center (now the Arnold Palmer Children's Hospital), Dr. Cooper returned to Industry as Director of Clinical Pharmacology for Merck and Co. in West Point, Pa. In this position he was the Merck Clinical Director of the Clinical Pharmacology unit at the Thomas Jefferson University Hospital in Philadelphia and simultaneously pursued a Fellowship in Clinical Pharmacology, specializing in anti-hypertensive agents.
In 1980, Dr. Cooper began private practice in Pediatrics in Downingtown, Pa and has continued in that career to the present time. Dr. Cooper is an avid cyclist and began road racing at age 12. In more recent times he has been involved in several long-distance rides including Maine to Florida and Minnesota to Louisiana and still harbors ambitions of riding Coast to Coast. He is an instrument-rated pilot and recently took up sailing to enjoy life at a more leisurely pace.
A wanna-be photographer, his photographs of wild life and landscapes adorn the walls of Chester County Pediatrics.
In 1961 Dr. Cooper married his High School Sweetheart, Gillian. They have 5 children and 6 grandchildren.

Mark R. Faber, M.D., F.A.A.P.

Dr. Faber grew up in Northeast Philadelphia and is a proud graduate of Northeast High. He won an academic scholarship to LaSalle University where he earned a B.A. in Biology. He graduated from the University of Pennsylvania School of Medicine in Philadelphia in 1984 and completed his pediatric training at St. Christopher's Hospital for Children. For the last twenty-three years, he has practiced at Chester County Pediatrics.

His interests include difficult diagnoses, gastroenterology, and developmental/psychosocial pediatrics. He has served as Chief of Pediatrics at the Chester County Hospital and Brandywine Hospital. Dr. Faber is married and proud of his wife and four fantastic daughters.

His interests include songwriting, traveling, live performing arts, cinema and supporting worthy global charities. He contributes to the Lustgarten Foundation for Pancreatic Cancer Research with the sales of his CD Lonely Romance available for a donation at the office or from iTunes.

Jill Brazelton, M.D., F.A.A.P.

Jill Brazelton was born and raised in the Philadelphia area. She received a B.A. in Human Biology and her M.D. from Stanford University. She completed her pediatric residency training at Lucile Packard Children’s Hospital at Stanford in Northern California. Dr. Brazelton moved back to Pennsylvania and joined Chester County Pediatrics in 2005. She enjoys spending time with her husband and two children and likes outdoor activities.