INTEGRATIVE MENTAL HEALTH SERVICES, PLLC
NPI 1073111746
Nurse Practitioner - Psychiatric/Mental Health in Billings, MT
About Integrative Mental Health Services, Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
INTEGRATIVE MENTAL HEALTH SERVICES, PLLC (NPI 1073111746) is a healthcare organization registered as a psychiatric/mental health in Billings, Montana and active in the NPI registry since October 2020. The organization lists Messina M. Michalsky, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Integrative Mental Health Services, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Integrative Mental Health Services, PLLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 3 within 10 miles. They are listed nearest first.
Clinicians, nearest first (3)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 27D2270902
Integrative Mental Health Services · Billings, MTFrequently 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 Integrative Mental Health Services, PLLC's NPI number?
The NPI number for Integrative Mental Health Services, PLLC is 1073111746. It was assigned to this organization in the NPPES registry on October 14, 2020.
Where is Integrative Mental Health Services, PLLC located?
Integrative Mental Health Services, PLLC is located at 926 Main St Ste 14, Billings, MT 59105. The listed phone number is (406) 702-1466.
What is Integrative Mental Health Services, PLLC's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Integrative Mental Health Services, PLLC enrolled in Medicare?
Yes. Integrative Mental Health Services, PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Integrative Mental Health Services, PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Nurse Practitioner, reassign their Medicare billing to Integrative Mental Health Services, PLLC. A 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 the clinician's services. Of these, 2 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Integrative Mental Health Services, PLLC accept?
Health plans from Blue Cross and Blue Shield of Montana list Integrative Mental Health Services, PLLC 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 Integrative Mental Health Services, PLLC was last updated on December 6, 2022. 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.
# Integrative Mental Health Services, Pllc · NPI 1073111746
Psychiatric/Mental Health organization in Billings, Montana. Organization record, active in the CMS NPPES registry since October 14, 2020.
## Identity
- **NPI:** 1073111746 (Entity type: Organization)
- **Enumerated:** October 14, 2020
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **Organization subpart:** No
- **Authorized official:** Messina Michalsky, OWNER
## Practice location
- **Address:** 926 MAIN ST STE 14, Billings, MT 59105-3359
- **Phone:** (406) 702-1466 · **Fax:** (406) 702-1591
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 3 clinicians (Nurse Practitioner) reassign Medicare billing to this organization (form CMS-855R); 2 practice at this address and 3 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 6, 2022
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1073111746) · Data from the CMS NPPES public registry.