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

James William Cassillo, DC

Individual provider Chiropractor · NPI 1871592295

James William Cassillo, DC is a Chiropractor in Massapequa, New York. Licensed in New York. Registered with an NPI since 2005.

Licensed in
NY
In the registry since
2005
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

See every abbreviation used in this directory →

Practice location Address checks out

5798 Merrick Rd
Massapequa, NY 11758-6223
Phone: (516) 795-6666
Fax: (516) 795-6834
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence X004518 (NY)

Record details

NPI number1871592295
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedJuly 18, 2005
Last updated in NPPESJuly 13, 2026
Mailing address5798 Merrick Rd, Massapequa, NY 11758-6223

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