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John P Marker, MA, LMHC

Mental Health Counselor in Greenwood, IN · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1629267786

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Registry record

Entity type Individual (Type 1)
Name John P Marker
Credential MA, LMHC
Sex Male
Practice address 435 E Main St Ste 200, Greenwood, IN, 46143
Phone (317) 743-8202
Fax (317) 743-8276
Enumeration date Oct 15, 2007
Last updated in NPPES Apr 25, 2023

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 39002010A (IN) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for John Marker?
The National Provider Identifier (NPI) for John Marker is 1629267786, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Marker practice?
The practice location on file with NPPES is in Greenwood, IN. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-25.