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

Mr. John Joseph O'Brien

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1881934891

Mr. John Joseph O'Brien is an Addiction (Substance Use Disorder) Counselor in Holyoke, Massachusetts. Registered with an NPI since 2013.

In the registry since
2013

Practice location Address checks out

1233 Main St
Holyoke, MA 01040-5381
Phone: (413) 493-2734
Fax: (413) 493-2783
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

Record details

NPI number1881934891
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedFebruary 28, 2013
Last updated in NPPESFebruary 28, 2013
Mailing addressPo Box 426, Lenox, MA 01240-0426

Other providers in Holyoke