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

William Marshall Johnston, MA, LMHC, LCAC

Individual provider Counselor · NPI 1336304104

William Marshall Johnston, MA, LMHC, LCAC is a Counselor in Carmel, Indiana. Practices as a sole proprietor. Licensed in Indiana.

Licensed in
IN
In the registry since
2008
Specialties on file
5
What do these letters mean?
MA — Master of Arts
A graduate arts degree.
LMHC — Licensed Mental Health Counselor
A licensed mental health counsellor; the title used in Florida, New York and Washington among others.

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Practice location Address checks out

13295 Illinois St Ste 139
Carmel, IN 46032-3020
Phone: (317) 900-6109
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 39001990A (IN)
Counselor Taxonomy 101Y00000X · Licence 39001990A (IN)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 87000650A (IN)
Psychoanalyst Taxonomy 102L00000X · Licence 39001990A (IN)
Marriage & Family Therapist Taxonomy 106H00000X · Licence 39001990A (IN)

Record details

NPI number1336304104
Entity typeIndividual (Type 1)
GenderMale
Credentials MA , LMHC , LCAC
Sole proprietorYes
NPI enumeratedJuly 22, 2008
Last updated in NPPESMarch 13, 2024
Certification dateMarch 13, 2024

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