> > > > Dr. William Castilla, MD
Dr. William P Castilla MD is a male Family Practitioner, has 44 years of experience and practices in Pediatrics, Family Medicine, General Practice, and Surgery.
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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  1. Qualifications
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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.

Specialties & Research

  • He has special expertise in 1 area:
  • Flu (Human Influenza)

Education & Awards

Dr. Castilla graduated from Universidad De Cartagena.


Dr. Castilla has 6 hospital affiliations:

  • St. Joseph'S Regional Medical Center 
  • St. Joseph's Wayne Hospital 

Accepted Insurance Plans

Dr. Castilla accepts these health insurances in at least one office:

  • United Healthcare - 15 plans
  • Horizon Blue Cross Blue Shield of New Jersey - 18 plans
  • Unicare - 5 plans
  • Oxford Health Plans - 3 plans
  • United Health Group, Inc. - Americhoice - 2 plans
  • AMERIGROUP - 3 plans
  • WellCare - 1 plan
  • Cigna - 14 plans
  • Humana - 5 plans
  • Great-West Healthcare - 1 plan
  • Healthfirst - 5 plans
  • The Empire Plan (UHC) - 1 plan


  • Italian

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Additional Information
Where does Dr. William P. Castilla practice?
Dr. William Castilla practices Pediatrics, Family Medicine, General Practice, and Surgery near Passaic, NJ.
See Passaic Pediatricians, Passaic Family Physicians, Passaic General Practitioners, and Passaic Surgeons.