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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. William Merriam:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. William Merriam is Excellent. Dr. Merriam has been reviewed by 10 patients who have provided 3 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.5
Promptness 4.8
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 4.8
Spends Time with Me 4.8
Follows Up After Visit 4.6

Specialties & Research

Dr. William Merriam, MD is board certified in Urology.

  • He has special expertise in 1 area:
  • Overactive Urinary Bladder

Education & Awards

Dr. Merriam graduated from Drexel University , Philadelphia. He has 2 awards.

Castle Connolly's Top Doctors™ (2013)
Compassionate Doctor Recognition (2014)


Dr. Merriam has 13 hospital affiliations:

  • Main Line Hospital - Bryn Mawr 
  • Chester County Hospital 

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Additional Information
Dr. William Merriam MD is a male Urologist, has 10 years of experience and practices in Urology.
Where does Dr. William Merriam practice?
Dr. William Merriam has 1 office location.
Dr. William Merriam practices Urology near West Chester, PA.
See West Chester Urologists.