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MR. GREGORY F GRIFFETH PMHNP-BC
NPI 1366253221
Nurse Practitioner - Psychiatric/Mental Health in Bozeman, MT

Active since January 18, 2025PECOS EnrolledAccepts Medicare Assignment
131 WHISKEY WAY UNIT C, BOZEMAN, MT 59718(406) 540-7235(406) 797-1597 Get Directions Write a Review

NPPES record last updated: March 26, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mr. Gregory F Griffeth Pmhnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. GREGORY F GRIFFETH PMHNP-BC (NPI 1366253221) is an individual psychiatric/mental health provider in Bozeman, Montana, licensed in Montana (NUR-APRN-LIC-268394) and active in the NPI registry since January 2025. He is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1366253221
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameMR. GREGORY F GRIFFETHCredential: PMHNP-BC
Location Address131 WHISKEY WAY UNIT CBozeman, MT 59718-1192
Mailing Address131 Whiskey Way Unit CBozeman, MT 59718-1192 · (406) 540-7235 · Fax (406) 797-1597
Phone(406) 540-7235
Fax(406) 797-1597
Sole ProprietorYes
Medical School CMSOtherGraduated 2025
Enumeration DateJanuary 18, 2025
Last NPPES UpdateMarch 26, 2026
NPPES CertifiedMarch 26, 2026
✔ NPI 1366253221 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MT · NUR-APRN-LIC-268394
131 WHISKEY WAY UNIT C, Bozeman, MT 59718
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Gregory F Griffeth 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.

PECOS PAC ID840760336
PECOS Enrollment IDI20260526002668
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59718 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$87.97 typical visit price
range $56.81 – $172.26
Typical copayment $21.99 (range $14.20 – $43.06)
Most-billed visit code 99203
Established Patient
$100.16 typical visit price
range $18.24 – $140.32
Typical copayment $25.04 (range $4.56 – $35.08)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

THE MEND PSYCHIATRIC SERVICES PLLC
Nurse Practitioner (Psychiatric/Mental Health)
131 WHISKEY WAY UNIT C
BOZEMAN, MT 59718
Gallatin County (912) 580-7469

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 Gregory Griffeth's NPI number?

The NPI number for Gregory Griffeth is 1366253221. It was assigned to this individual provider in the NPPES registry on January 18, 2025.

Where is Gregory Griffeth located?

Gregory Griffeth practices at 131 Whiskey Way Unit C, Bozeman, MT 59718. The listed phone number is (406) 540-7235.

What is Gregory Griffeth's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Gregory Griffeth enrolled in Medicare?

Yes. Gregory Griffeth 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.

When was this NPI record last updated?

The NPPES record for Gregory Griffeth was last updated on March 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.