Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William Castilla, MD

Individual provider Pediatrics Physician · NPI 1235283938

William Castilla, MD is a Pediatrics Physician in Passaic, New Jersey. Licensed in New Jersey. Registered with an NPI since 2007.

Licensed in
NJ
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

293 Passaic St
Passaic, NJ 07055
Phone: (973) 365-1377
Fax: (973) 365-1229
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 25MA02465100 (NJ)
Surgery Physician Taxonomy 208600000X · Licence 25MA02465100 (NJ)

Record details

NPI number1235283938
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 22, 2007
Last updated in NPPESJanuary 19, 2011
Mailing addressPo Box 568, Paterson, NJ 07544-0568

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