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

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1598776965

John Gilbert Lewis, LAC is an Addiction (Substance Use Disorder) Counselor in Billings, Montana. Licensed in Montana. Registered with an NPI since 2006.

Licensed in
MT
In the registry since
2006
What do these letters mean?
LAC — Licensed Associate Counselor
A counsellor practising under supervision toward full licensure. In some states the same letters mean Licensed Acupuncturist.

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Practice location Address checks out

1245 N 29th St
Billings, MT 59101
Phone: (406) 252-5658
Fax: (406) 238-3617
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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 535CDC (MT)

Record details

NPI number1598776965
Entity typeIndividual (Type 1)
GenderMale
Credentials LAC
Sole proprietorNo
NPI enumeratedAugust 11, 2006
Last updated in NPPESJuly 8, 2007

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