Radnor Family Practitioner
Dr. Scott Walker established Radnor Family practice in 2020 with the hope that every patient deserves a personalized relationship with his/her doctor. A graduate of the University of Pennsylvania School of Medicine, Dr. Walker obtained a Master of Science in Osteopathy at Philadelphia University School of Medicine. He received his Bachelor of Science degree in Osteopathy at Lehigh University.
After a seven-year career in business, he went to Philadelphia College of Osteopathic Medical Sciences and received his Doctorate of Osteopathy. As a clinical researcher for the American College of Chest Physicians, Dr. Walker also has published extensively on the holistic healing process, alternative medicine, and bioidentical hormones.
Dr. Scott Walker has worked as a full-time family practitioner for nearly 15 years in the Philadelphia area and is very well known in his community. His practice offers a wide variety of services, including routine wellness screenings, immunizations, treatment of common skin conditions, treatments for urinary tract infections, and other general preventive care and screenings.
Radnor Family practice is committed to providing the highest quality care and treatment to all patients and welcomes the possibility of treating patients with a special need such as HIV or diabetes. There are currently six doctors working with this practice:
Dr. Mark J. O’Brien, MD
Dr. O’Brien is a board-certified internal medicine physician and an Associate Clinical Professor at the Graduate School of Business Administration at the University of New Mexico. Prior to this position, he was a clinical assistant professor of internal medicine and director of the Medicine Management Program at the University of Texas at San Antonio. Dr. O’Brien earned his undergraduate degree in biology at Stanford University and his master’s degree from Harvard University. As a doctor, he is a member of the American College of Internal Medicine (ACIM), and is a member of the Council of Internal Medicine.
Tom F. Wertheimer
Tom Wertheimer has been practicing medicine for over 40 years. Prior to his time with Radnor, he worked in private practice in Houston, Texas. He is currently a Board Certified Internal Medicine Physician. and has a Bachelor of Science in Biology from the University of Michigan and Master’s Degree in Health Services Administration from the University of Texas Health Science Center.
Dr. William B. Zajacic
Dr. Zajic has a Bachelor of Science in Biomedical Management and a Master of Science in Health Management from the University of Pittsburgh. With Radnor, he serves as Director of the Center for Medical Education. at the University of Pittsburgh School of Medicine in the Department of Surgery.