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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 DiGiacomo:

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Patient Reviews

Patient comments (8)

The overall average patient rating of Dr. William DiGiacomo, Dr. William A. DiGiacomo, M.D. is Excellent. Dr. DiGiacomo has been reviewed by 44 patients who have provided 8 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.8
Promptness 4.2
Courteous Staff 4.4
Accurate Diagnosis 4.7
Bedside Manner 4.9
Spends Time with Me 4.8
Follows Up After Visit 4.8

Specialties & Research

Dr. William DiGiacomo, FACP, MD is board certified in Internal Medicine.

Education & Awards

Dr. DiGiacomo graduated from University of Guadalajara, Mexico, San Antonio. He has 5 awards.

Patients' Choice 5th Anniversary Award (2012 - 2015)
Patients' Choice Award (2008 - 2015)
Compassionate Doctor Award - 5 Year Honoree (2014 - 2015)
Compassionate Doctor Recognition (2010 - 2015)
Top 10 Doctor - City (2014)
Union, NJ


Dr. DiGiacomo has 5 hospital affiliations:

  • Overlook Hospital 
  • Cathedral Healthcare System 


  • Italian
  • Portuguese
  • Spanish
  • English

> > > > Dr. William DiGiacomo, FACP, MD

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Additional Information
Dr. William A DiGiacomo FACP and MD is a male Internist, has 38 years of experience and practices in Internal Medicine.
Where does Dr. William A. DiGiacomo practice?
Dr. William DiGiacomo has 2 office locations.
Dr. William DiGiacomo practices Internal Medicine near Union, NJ.
Additional practice locations include: Newark, NJ.
See Union Internists.