* Dr. Timothy G. Doyle and Dr. Jason E. Goodman have joined the clinical staff at Mercy Medical Center.
They will see patients exclusively at Overlea Personal Physicians at 7602 Belair Road, Overlea.
Board certified in internal medicine, Doyle has managed an internal medicine practice in Towson for the past 12 years. He earned his medical degree in 1993 from the Drexel University College of Medicine in Philadelphia. He completed his residency in internal medicine at Penn State's Milton S. Hershey Medical Center in Hershey, Pa.
Goodman is board certified in internal medicine and has been in private practice in Silver Spring for the past eight years. A graduate of University of Maryland School of Medicine, he completed his residency in internal medicine at the UM Medical Center.
* Dr. Ruth Y. Peng has joined the Department of Pathology at Mercy Medical Center.
Peng earned a medical degree at the Albert Einstein College of Medicine of Yeshiva University in New York. She completed her pathology residency and dermatopathology fellowship at Duke University Medical Center and a cytopathology fellowship at the UCLA David Geffen School of Medicine.
* Frances B. Phillips has been appointed deputy secretary for public health services at the state Department of Health and Mental Hygiene. Phillips, who begins her new position Dec. 1, has been health officer in Anne Arundel County since 1993.
The deputy secretary for public health services oversees the AIDS, community health, family health and laboratories administrations, along with the department's Office of Preparedness and Response and the Office of the Chief Medical Examiner.
Phillips is a registered nurse who earned a bachelor of science degree in nursing from Catholic University of America in Washington and a master's in health care administration from George Washington University, also in Washington.
* Dr. John L. Cameron, Alfred Blalock distinguished service professor of surgery at the Johns Hopkins University School of Medicine and, for 19 years, chief of surgery at Johns Hopkins Hospital, is the new president of the American College of Surgeons.
An internationally renowned leader in surgical practice, research and professional development, Cameron is perhaps most identified with his meticulous development and mastery of the Whipple procedure, a complex operation performed on pancreatic cancer patients.
His research interests have included randomized clinical trials and clinical outcomes in pancreas surgery, as well as basic laboratory research of pancreatic diseases for which he has received grant support from the National Institutes of Health.
The American College of Surgeons is a scientific and educational group with more than 73,000 members. It is the largest organization of surgeons in the world.