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

Douglas McLennan Calkin Jr.

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1134468119

Douglas McLennan Calkin Jr. is an Addiction (Substance Use Disorder) Counselor in Napa, California. Practices as a sole proprietor. Registered with an NPI since 2013.

In the registry since
2013

Practice location Address checks out

2100 Napa Vallejo Hwy Bldg 253 M1 And M2
Napa, CA 94558-6234
Phone: (707) 257-7395
Fax: (707) 257-7524
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 number1134468119
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedFebruary 11, 2013
Last updated in NPPESFebruary 11, 2013

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