> > > > Dr. William Castilla, MD
Dr. William P Castilla MD is a male Bariatrician, has 44 years of experience and practices in Bariatric Medicine.
Dr. William Castilla has 1 office location.
St. Barnabas Multispecialty Group
293 Passaic St
Passaic, NJ 07055

Phone Number
Locations and availability (1)
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 Castilla:

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Patient Reviews

  • Currently 4 of 4 stars
Patient comments (0)

The overall average patient rating of Dr. William Castilla is Excellent. Dr. Castilla has been reviewed by 1 patients who have provided 0 comments. The rating is 4 out of 4 stars.

Education & Awards

Dr. Castilla graduated from Universidad De Cartagena.


Dr. Castilla has 6 hospital affiliations:

  • Barnert Hospital 
  • St. Joseph's Wayne Hospital 


  • Italian

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Additional Information
Where does Dr. William P. Castilla practice?
Dr. William Castilla practices Bariatric Medicine near Passaic, NJ.
See Passaic Family Physicians.