Dr. William G. Merriam, M.D. brings a mixture of incredible skill and compassionate bedside manner to the Midlantic Urology group. An avid Redskins fan, he grew up outside of Washington, D.C. After graduating from Georgetown University, where he majored in Chemistry, with minors in Psychology and Hoya Basketball, he accepted a prestigious 2-year fellowship at the National Cancer Institute. Following that, he traveled north to Philadelphia for medical school at MCP Hahnemann.
Dr. William G. Merriam, M.D. brings a mixture of incredible skill and compassionate bedside manner to the Midlantic Urology group. An avid Redskins fan, he grew up outside of Washington, D.C. After graduating from Georgetown University, where he majored in Chemistry, with minors in Psychology and Hoya Basketball, he accepted a prestigious 2-year fellowship at the National Cancer Institute. Following that, he traveled north to Philadelphia for medical school at MCP Hahnemann.
The reviews listed below were collected independently of MidLantic Urology through rater8. Each review represents an authentic and verified patient experience.
Very thorough, attentive to patients, and explains process and next steps.
Aug-2025
Straightforward process. Good experience along the process.
Aug-2025
Great explanation of my issues.
What to expect and how to treat them.
Felt at home. Mike
Aug-2025
Dr Merriam is professional and thorough, always willing to listen to you and to address any concerns. I appreciate him greatly.
Jul-2025
Listened and very thorough in the exam. Explained what he thought and the next step. Excellent visit.
Jul-2025
Great Dr. Takes the time to talk to you about your situation and is easy to talk to.
Jul-2025
Always a great visit with Dr. Merriam!
Jul-2025
Always value his straightforward manner.
Jun-2025
Dr Merriam is a total top notch professional while also talking to you like you matter to him.
Jun-2025
Excellent bedside manner and knowledgeable.
Jun-2025
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Coatesville
213 Reeceville Rd Suite 24 Coatesville, PA 19320
Paoli (2 Industrial Blvd)
2 Industrial Boulevard Building C, Suite 120 Paoli, PA 19301
West Chester
915 Old Fern Hill Road Building B, Suite 202 West Chester, PA 19380
Dr. William G. Merriam, M.D. brings a mixture of incredible skill and compassionate bedside manner to the Midlantic Urology group. An avid Redskins fan, he grew up outside of Washington, D.C. After graduating from Georgetown University, where he majored in Chemistry, with minors in Psychology and Hoya Basketball, he accepted a prestigious 2-year fellowship at the National Cancer Institute. Following that, he traveled north to Philadelphia for medical school at MCP Hahnemann, where he graduated as a member of the AOA Honors Society. He completed his Urologic Surgery Residency at Jefferson University and joined Midlantic Urology immediately thereafter. A talented surgeon, Dr. Merriam chose Urologic Surgery as his specialty as it allows him to utilize his surgical skills and build ongoing relationships with his patients. His goal has always been to help improve the health of his patients and his community. He focuses on providing and expanding, the options for less invasive treatment modalities for diseases of the prostate and kidney. He believes in a collaborative approach to solving problems and in making sure patients understand, and participate in, the decisions surrounding their health. Dr. Merriam resides with his wife, also a physician, and his two daughters. He enjoys playing soccer, skiing with his family, and working in his garden.
AREAS OF EXPERTISE –Robotic Surgery –Laparoscopy –Stone Treatment –Benign and Cancerous Disorders of the Prostate, Bladder, and Kidney –Member Alpha Omega Alpha medical honor society
UNDERGRADUATE EDUCATION Georgetown University
MEDICAL DEGREE Drexel University College of Medicine, formerly MCP Hahnemann School of Medicine
RESIDENCY Thomas Jefferson University
CERTIFICATIONS American Board of Urology
ASSOCIATIONS –Americal Urological Association –Medical Executive Committee, Main Line Health –Medical Executive Committee, Keystone Lithotripsy –Chief of Urology, Brandywine Hospital
MAJOR ACCOMPLISHMENTS –Top Doc, Philadelphia Magazine, 2017, 2018, 2022 –Top Doc, Main Line Today, 2010-2018
Very thorough, attentive to patients, and explains process and next steps.
Straightforward process. Good experience along the process.
Great explanation of my issues. What to expect and how to treat them. Felt at home. Mike
Dr Merriam is professional and thorough, always willing to listen to you and to address any concerns. I appreciate him greatly.
Listened and very thorough in the exam. Explained what he thought and the next step. Excellent visit.
Great Dr. Takes the time to talk to you about your situation and is easy to talk to.
Always a great visit with Dr. Merriam!
Always value his straightforward manner.
Dr Merriam is a total top notch professional while also talking to you like you matter to him.
Excellent bedside manner and knowledgeable.