MARY GWYNNE MCCLAIN APRN, MSN, PMHNP-BC
NPI 1548833098
Nurse Practitioner - Psychiatric/Mental Health in Marion, IN
About Mary Gwynne Mcclain Aprn, Msn, Pmhnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY GWYNNE MCCLAIN APRN, MSN, PMHNP-BC (NPI 1548833098) is an individual psychiatric/mental health provider in Marion, Indiana, licensed in Indiana (71015598A) and active in the NPI registry since July 2021. She is enrolled in Medicare PECOS, is affiliated with Marion General Hospital, and maintains a secondary practice location in Marion.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Mary Gwynne Mcclain Aprn, Msn, Pmhnp-bc 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 Mary Mcclain reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Marion, IN 46952
- Reassigned Medicare billing, Indiana enrollment
- 40 clinicians in this Medicare group
Bremen, IN 46506
- Reassigned Medicare billing, Indiana enrollment
- 87 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Marion General Hospital
Acute Care Hospitals · Marion, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46952 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Mary Mcclain's NPI number?
The NPI number for Mary Mcclain is 1548833098. It was assigned to this individual provider in the NPPES registry on July 22, 2021.
Where is Mary Mcclain located?
Mary Mcclain practices at 505 N Wabash Ave, Marion, IN 46952. The listed phone number is (765) 348-4221.
What is Mary Mcclain's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Mary Mcclain enrolled in Medicare?
Yes. Mary Mcclain 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 Mary Mcclain's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Mcclain reassigns Medicare benefits to 2 organizations: Grant-Blackford Mental Health, Inc. (Marion, IN) and Aims, LLC (Bremen, IN). 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 Mary Mcclain's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Mcclain accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan and Ambetter from Meridian list Mary Mcclain 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.
Is Mary Mcclain affiliated with any hospitals?
According to CMS data, Mary Mcclain is affiliated with Marion General Hospital.
When was this NPI record last updated?
The NPPES record for Mary Mcclain was last updated on July 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.
# Mary Gwynne Mcclain, APRN, MSN, PMHNP-BC · NPI 1548833098
Psychiatric/Mental Health physician in Marion, Indiana. Individual provider, active in the CMS NPPES registry since July 22, 2021.
## Identity
- **NPI:** 1548833098 (Entity type: Individual)
- **Enumerated:** July 22, 2021
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 71015598A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 505 N WABASH AVE, Marion, IN 46952-2608
- **Phone:** (765) 348-4221
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Grant-Blackford Mental Health, Inc. (NPI 1437983103, Marion, IN); Aims, LLC (NPI 1376072785, Bremen, IN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** July 30, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1548833098) · Data from the CMS NPPES public registry.