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

Mr. William Ellsworth Perkins, CASAC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1437401114

Mr. William Ellsworth Perkins, CASAC is an Addiction (Substance Use Disorder) Counselor in New York, New York. Licensed in New York. Registered with an NPI since 2012.

Licensed in
NY
In the registry since
2012

Practice location Address checks out

261 W 35th St Ste 305
New York, NY 10001-1902
Phone: (646) 720-7118
Fax: (212) 629-7111
Show map & directions

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

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X · Licence 11973 (NY)

Record details

NPI number1437401114
Entity typeIndividual (Type 1)
GenderMale
Credentials CASAC
Sole proprietorNo
NPI enumeratedOctober 5, 2012
Last updated in NPPESOctober 5, 2012

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