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

Diane V Haddon PLLC

Organization Clinical Social Worker · NPI 1477753366

Diane V Haddon PLLC is a Clinical Social Worker in Missoula, Montana. Licensed in Montana. Registered with an NPI since 2007.

Licensed in
MT
In the registry since
2007
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

210 N Higgins Ave Ste 324
Missoula, MT 59802-4462
Phone: (406) 721-6144
Fax: (406) 721-6709
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 289LCSW (MT)

Record details

NPI number1477753366
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Diane Haddon — Solo Owner · (406) 721-6144
NPI enumeratedJuly 19, 2007
Last updated in NPPESJuly 19, 2007
Mailing address210 N Higgins Ave, Suite 324, Missoula, MT 59802-4462

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