Patient Reviews

Reviews reflect patients' level of satisfaction with the care they received from this provider. Dr. William Duffy xhas an overall rating of 4.7.


Dr. William Duffy, MD is a Doctor primarily located in Radnor, PA, with another office in Philadelphia, PA. He has 23 years of experience. His specialties include Internal Medicine. Dr. Duffy is affiliated with The Hospital of The University of Pennsylvania, Pennsylvania Hospital and Lehigh Valley Hospital - Muhlenberg. He speaks English.


Patients rate and review their physicians based on criteria of care including bedside manner, doctor-patient face time, and degree of follow-up. Patients also provide their doctor with an overall ratings. Vitals analyzes these ratings annually, along with other quality measures, to identify and award the top physicians.


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Specialties & Expertise

Dr. William Duffy has the following 7 areas of expertise, 1 specialty and 1 board certification.

Internal Medicine

An internist is a physician who focuses on the diagnosis and treatment of conditions that affect the adult population—both acute and chronic.
These doctors are often who adults see as their primary physicians because they treat a broad range of illnesses that do not require surgical or specialist interventions. They also work to help a patient maintain optimal health in order to prevent the onset of disease.
In addition to treating the common cold and flu, internists also treat chronic diseases like diabetes and heart disease.


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Board Certification

See the board certifications this doctor has received. Board certifications provide confidence that this doctor meets the nationally recognized standards for education, knowledge and experience.

Locations & Directions

Penn Medicine Multispecialty Practices

250 King of Prussia Rd
Radnor, PA 19087


727 Delancey St
Philadelphia, PA 19106

Nearby Doctors

Dr. William Duffy, MD is similar to these 3 Doctors near Radnor, PA.