We are committed to delivering high-quality medical service with the care & compassion our patients and their families have come to expect from us.


Medical Staff


William Holgerson, MD

William Holgerson, MD

Dr. Holgerson is a graduate of the University of Notre Dame and the University of Massachusetts School of Medicine. He completed his residency program at the Newton Wellesley Hospital, where he served as Chief Medical Resident. Dr. Holgerson is Board Certified in Internal Medicine and he is an Associate Clinical Professor at Tufts University School of Medicine. Dr. Holgerson is the founding partner of Newton Wellesley Primary Care, and has been selected four times by Boston Magazine as one of Boston's best primary care physicians. Dr. Holgerson and his wife, Barbara, live in Needham and have 6 children. Dr. Holgerson has served as Chairman of the Board of Directors of the Newton Wellesley Physician Hospital Organization. Dr. Holgerson sees patients in our Wellesley office. Dr. Holgerson is not accepting new patients at this time.

Edward Legare, MD, FACP

Dr. Legare is a 1984 graduate of the University of Notre Dame and 1989 graduate of Tufts University School of Medicine. After completing his residency in Internal Medicine and his scholarship obligation to the United States Army, Major Legare came to Newton Wellesley in 1994. Dr. Legare is Board Certified in Internal Medicine and in addition to his clinical responsibilities, is a clinical instructor of Medicine at Tufts University School of Medicine. Dr. Legare also served as the Associate Medical Director of the Newton Wellesley Physician Hospital Organization, an Overseer of Newton Wellesley Hospital, and a Board member of the Newton Wellesley Charitable Foundation. Dr. Legare is one of the founding partners of Newton Wellesley Primary Care, P.C. and lives with his wife Beth and their four children in Medfield. Dr. Legare sees patients in our Wellesley offices. Dr. Legare is not accepting new patients at this time.

William Liaw, MD

William Liaw, MD

Dr. Liaw joined Newton Wellesley Primary Care in 1997. He graduated magna cum laude from Brown University in 1990, and then from the University of Virginia School of Medicine in 1994. During medical school, he spent several months in an outpatient clinic on the Navajo Reservation. He was one of the founders of the internal medicine club in medical school. He then completed his medical residency training at the University of Vermont. Dr. Liaw is an Associate Clinical Professor at Tufts University School of Medicine, a former co-director of the physical diagnosis course at Newton-Wellesley Hospital, as well as the recipient of the Allen W. Locke, MD and Mark Aisner, MD awards for Excellence in Teaching of Physical Diagnosis. Dr. Liaw is Board Certified in Internal Medicine and has been named one of Boston’s top primary care physicians by Boston Magazine. He enjoys photography and running. Dr. Liaw, his wife Patricia, and their two daughters reside in Needham. Dr. Liaw is accepting new patients to his concierge practice at this time.

Charles Pao, MD

Charles Pao, MD

Dr. Pao is a 1989 graduate of the University of Texas at Austin, where he was elected to the Eta Kappa Nu Honor Society. He received his medical degree from the University of Texas Medical School of Medicine in Houston, where he was elected to the Alpha Omega Alpha Medical Honor Society. He completed his Internal Medicine Residency at Yale University School of Medicine. Dr. Pao is an Assistant Clinical Professor in Medicine at Tufts University School of Medicine. He has been given the Faculty Award for Excellence in Teaching in Medicine, The Allen W. Locke MD Award for Effective Teaching of Primary Care, and the Partners in Excellence Award by Partners Health Care. He is Board Certified in Internal Medicine. He has special interests in cardiovascular diseases and preventive medicine.Dr. Pao is accepting new patients to his concierge practice at this time.

Jeanne Richard, MD

Jeanne Richard, MD

Dr. Richard graduated Cum Laude and Phi Beta Kappa from the University of Vermont in 1991. She received her medical degree from Tufts University School of Medicine, where she was elected into the Alpha Omega Alpha Honor Society. She completed her residency in Internal Medicine at New England Medical Center, where she served as Chief Medical Resident. Dr. Richard is Board Certified in Internal Medicine and is a Clinical Instructor of Medicine at the Tufts University School of Medicine. Dr. Richard lives in Bolton with her husband and their 4 children.Dr. Richard is accepting new patients to her concierge practice at this time.

Eric Serrano, MD

Eric Serrano, MD

Dr. Serrano graduated from Brown University with a Bachelor of Science degree in Biology in 1999, and went on to receive his medical degree from The Warren Alpert Medical School of Brown University. Dr. Serrano completed his Internal Medicine residency at Maine Medical Center in Portland, Maine, in June 2007, and is Board Certified in Internal Medicine. He has a special interest in preventive medicine. He has been given The Allen W. Locke MD Award for Effective Teaching of Primary Care. Dr. Serrano sees patients in our Wellesley office. Dr. Serrano is not accepting new patients at this time.


Lillian Stafford, PA

Lillian Helton, PA

Lillian is a 1993 graduate of the Physician Assistant Program of the Robert Wood Johnson Medical School. She has been in practice with Newton Wellesley Primary Care since 1995. Lillian enjoys teaching and is also an assistant clinical professor at Massachusetts College of Pharmacy and Health Sciences. She enjoys patient education and has a special interest in preventive medicine and woman's health.

Physician Assistants are clinicians who practice with physicians, performing medical histories and physical exams. They are emerging as an integral part of a comprehensive health care team. They are skilled in the diagnosis and treatment of common medical illnesses and work closely with the physicians in management of severely ill and chronically ill patients.