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WILLIAM MARSHALL JOHNSTON MA, LMHC, LCAC
NPI 1336304104
Counselor - Mental Health in Carmel, IN

Active since July 22, 2008
13295 ILLINOIS ST STE 139, CARMEL, IN 46032(317) 900-6109 Get Directions Write a Review

NPPES record last updated: March 13, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About William Marshall Johnston Ma, Lmhc, Lcac NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM MARSHALL JOHNSTON MA, LMHC, LCAC (NPI 1336304104) is an individual mental health provider in Carmel, Indiana, licensed in Indiana (39001990A) and active in the NPI registry since July 2008.

NPPES Registry Identity

NPI1336304104
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameWILLIAM MARSHALL JOHNSTONCredential: MA, LMHC, LCAC
Location Address13295 ILLINOIS ST STE 139Carmel, IN 46032-3020
Mailing Address13295 Illinois St Ste 139Carmel, IN 46032-3020 · (317) 900-6109
Phone(317) 900-6109
Sole ProprietorYes
Enumeration DateJuly 22, 2008
Last NPPES UpdateMarch 13, 2024
NPPES CertifiedMarch 13, 2024
✔ NPI 1336304104 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in IN · 39001990A
Also ListedCounselorTaxonomy 101Y00000X · License 39001990A (IN)
Also ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X · License 87000650A (IN)
Also ListedPsychoanalystTaxonomy 102L00000X · License 39001990A (IN)
Also ListedMarriage & Family TherapistTaxonomy 106H00000X · License 39001990A (IN)
13295 ILLINOIS ST STE 139, Carmel, IN 46032
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Johnston's NPI number?

The NPI number for William Johnston is 1336304104. It was assigned to this individual provider in the NPPES registry on July 22, 2008.

Where is William Johnston located?

William Johnston practices at 13295 Illinois St Ste 139, Carmel, IN 46032. The listed phone number is (317) 900-6109.

What is William Johnston's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

What insurance does William Johnston accept?

Health plans from UnitedHealthcare list William Johnston as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Johnston was last updated on March 13, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.