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

John McMahon, LCSW

Individual provider Mental Health Counselor · NPI 1033399118

John McMahon, LCSW is a Mental Health Counselor in Columbus, Mississippi. Licensed in Mississippi. Registered with an NPI since 2007.

Licensed in
MS
In the registry since
2007
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

See every abbreviation used in this directory →

Practice location Address checks out

1001 Main St
Columbus, MS 39701-4751
Phone: (662) 328-9225
Fax: (662) 328-4735
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence C5895 (MS)

Record details

NPI number1033399118
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedNovember 6, 2007
Last updated in NPPESOctober 26, 2010

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