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

Dr. Joseph C Sullivan III, DC

Individual provider Chiropractor · NPI 1578642138

Dr. Joseph C Sullivan III, DC is a Chiropractor in Smithtown, New York. Practices as a sole proprietor. Licensed in California and New York.

Licensed in
CA, NY
In the registry since
2006
Specialties on file
2
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

17 Leonard St
Smithtown, NY 11787-1015
Phone: (917) 655-0316
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence X011979 (NY)
Chiropractor Taxonomy 111N00000X · Licence 18970 (CA)

Record details

NPI number1578642138
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedNovember 3, 2006
Last updated in NPPESOctober 9, 2019

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