MARK MCGRATH
NPI 1659870178
Nurse Practitioner - Psychiatric/Mental Health in Missoula, MT
About Mark Mcgrath NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK MCGRATH (NPI 1659870178) is an individual psychiatric/mental health provider in Missoula, Montana, licensed in Montana (NUR-APRN-LIC-129862) and active in the NPI registry since February 2018. He is enrolled in Medicare PECOS, is affiliated with St. Patrick Hospital, and maintains a secondary practice location in Missoula.
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
Mark Mcgrath 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 Reassignment
Medicare enrollment records show Mark Mcgrath reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Missoula, MT 59802
- Reassigned Medicare billing, Montana enrollment
- 325 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.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St. Patrick Hospital
Acute Care Hospitals · Missoula, MTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59802 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
MISSOULA, MT 59802
MISSOULA, MT 59802
MISSOULA, MT 59802
MISSOULA, MT 59802
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 Mark Mcgrath's NPI number?
The NPI number for Mark Mcgrath is 1659870178. It was assigned to this individual provider in the NPPES registry on February 10, 2018.
Where is Mark Mcgrath located?
Mark Mcgrath practices at 900 N Orange St Ste 202, Missoula, MT 59802. The listed phone number is (406) 327-3362.
What is Mark Mcgrath's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Mark Mcgrath enrolled in Medicare?
Yes. Mark Mcgrath 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 organization bills Medicare for Mark Mcgrath's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Mcgrath reassigns Medicare benefits to Providence Health & Services Mt (Missoula, MT). 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 Mark Mcgrath's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Mcgrath accept?
Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP and PacificSource Health Plans list Mark Mcgrath 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 Mark Mcgrath affiliated with any hospitals?
According to CMS data, Mark Mcgrath is affiliated with St. Patrick Hospital.
When was this NPI record last updated?
The NPPES record for Mark Mcgrath was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 50 days 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.
# Mark Mcgrath · NPI 1659870178
Psychiatric/Mental Health physician in Missoula, Montana. Individual provider, active in the CMS NPPES registry since February 10, 2018.
## Identity
- **NPI:** 1659870178 (Entity type: Individual)
- **Enumerated:** February 10, 2018
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** NUR-APRN-LIC-129862 (Montana)
- **Sole proprietor:** No
## Practice location
- **Address:** 900 N ORANGE ST STE 202, Missoula, MT 59802-2951
- **Phone:** (406) 327-3362 · **Fax:** (406) 327-3349
## 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:** Providence Health & Services Mt (NPI 1144319138, Missoula, MT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** September 3, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1659870178) · Data from the CMS NPPES public registry.