JOHN P MARKER MA, LMHC
NPI 1629267786
Counselor - Mental Health in Greenwood, IN
About John P Marker Ma, Lmhc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN P MARKER MA, LMHC (NPI 1629267786) is an individual mental health provider in Greenwood, Indiana, licensed in Indiana (39002010A) and active in the NPI registry since October 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John P Marker Ma, Lmhc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Marker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Greenwood, IN 46143
- Reassigned Medicare billing, Indiana enrollment
- 6 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREENWOOD, IN 46143
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 John Marker's NPI number?
The NPI number for John Marker is 1629267786. It was assigned to this individual provider in the NPPES registry on October 15, 2007.
Where is John Marker located?
John Marker practices at 435 E Main St Ste 200, Greenwood, IN 46143. The listed phone number is (317) 743-8202.
What is John Marker's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is John Marker enrolled in Medicare?
Yes. John Marker is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Marker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Marker reassigns Medicare benefits to Generations Counseling Services, LLC (Greenwood, IN). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Marker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Marker accept?
Health plans from Anthem Blue Cross and Blue Shield and CareSource list John Marker 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 John Marker was last updated on April 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# John P Marker, MA, LMHC · NPI 1629267786
Mental Health provider in Greenwood, Indiana. Individual provider, active in the CMS NPPES registry since October 15, 2007.
## Identity
- **NPI:** 1629267786 (Entity type: Individual)
- **Enumerated:** October 15, 2007
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 39002010A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 435 E MAIN ST STE 200, Greenwood, IN 46143-1457
- **Phone:** (317) 743-8202 · **Fax:** (317) 743-8276
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Generations Counseling Services, LLC (NPI 1821509126, Greenwood, IN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** April 25, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1629267786) · Data from the CMS NPPES public registry.