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

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.

See every abbreviation used in this directory →

Practice location Address checks out

293 Passaic St
Passaic, NJ 07055
Phone: (973) 365-1377
Fax: (973) 365-1229
Show map & directions

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

Other providers in Passaic