DIANE MARIE JOHNSTON LLPC
NPI 1184180465
Counselor - Mental Health in Detroit, MI
About Diane Marie Johnston Llpc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DIANE MARIE JOHNSTON LLPC (NPI 1184180465) is an individual mental health provider in Detroit, Michigan, licensed in Michigan (6401017050) and active in the NPI registry since February 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Rochester, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Diane Marie Johnston Llpc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Diane Johnston reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sterling Heights, MI 48313
- Reassigned Medicare billing, Michigan enrollment
- 9 clinicians in this Medicare group
Rochester, MI 48307
- Reassigned Medicare billing, Michigan enrollment
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DETROIT, MI 48238
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 Diane Johnston's NPI number?
The NPI number for Diane Johnston is 1184180465. It was assigned to this individual provider in the NPPES registry on February 12, 2019.
Where is Diane Johnston located?
Diane Johnston practices at 882 Oakman Blvd, Detroit, MI 48238. The listed phone number is (313) 875-7601.
What is Diane Johnston's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Diane Johnston enrolled in Medicare?
Yes. Diane Johnston is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Diane Johnston's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diane Johnston reassigns Medicare benefits to 2 organizations: Thaar Care Foundation, Inc (Sterling Heights, MI) and Diane Johnston PLLC (Rochester, MI). Each 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 Diane Johnston's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Diane Johnston accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 3 other insurers list Diane 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 Diane Johnston was last updated on November 14, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Diane Marie Johnston, LLPC · NPI 1184180465
Mental Health provider in Detroit, Michigan. Individual provider, active in the CMS NPPES registry since February 12, 2019.
## Identity
- **NPI:** 1184180465 (Entity type: Individual)
- **Enumerated:** February 12, 2019
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 6401017050 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 882 OAKMAN BLVD, Detroit, MI 48238-3710
- **Phone:** (313) 875-7601
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Thaar Care Foundation, Inc (NPI 1508463126, Sterling Heights, MI); Diane Johnston PLLC (NPI 1710619333, Rochester, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** November 14, 2019
- **Other identifiers:** Medicaid 1184180465 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1184180465) · Data from the CMS NPPES public registry.