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

John Walker, ASAC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1114047545

John Walker, ASAC is an Addiction (Substance Use Disorder) Counselor in Commack, New York. Licensed in New York. Registered with an NPI since 2007.

Licensed in
NY
In the registry since
2007

Practice location Address checks out

155 Indian Head Rd
Commack, NY 11725-2212
Phone: (631) 543-6200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X · Licence 12833 (NY)

Record details

NPI number1114047545
Entity typeIndividual (Type 1)
GenderMale
Credentials ASAC
Sole proprietorNo
NPI enumeratedMarch 30, 2007
Last updated in NPPESJuly 8, 2007
Mailing address33 E Beech St, Central Islip, NY 11722-3140

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