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SENTINEL MENTAL HEALTH INC
NPI 1821752403
Social Worker - Clinical in Billings, MT

Active since October 28, 2021
1645 AVE D, SUITE C, BILLINGS, MT 59102(406) 272-2511(406) 204-0474 Get Directions Write a Review

NPPES record last updated: November 20, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 20, 2025, Feb 7, 2022 (2 updates tracked since 2022).

About Sentinel Mental Health Inc NPPES

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

SENTINEL MENTAL HEALTH INC (NPI 1821752403) is a healthcare organization registered as a clinical in Billings, Montana and active in the NPI registry since October 2021. The organization lists Michael C Eaton, Ceo, as its authorized official.

NPPES Registry Identity

NPI1821752403
Entity TypeOrganization
Primary Taxonomy1041C0700X
Legal Business NameSENTINEL MENTAL HEALTH INC
Location Address1645 AVE D, SUITE CBillings, MT 59102-3043
Mailing Address1645 Ave D, Ste CBillings, MT 59102-3043 · (406) 591-2199 · Fax (406) 204-0474
Phone(406) 272-2511
Fax(406) 204-0474
Organization SubpartNo
Authorized OfficialMichael C EatonCeo · (406) 591-2199
Enumeration DateOctober 28, 2021
Last NPPES UpdateNovember 20, 20252 updates tracked since enumeration
NPPES CertifiedNovember 20, 2025
✔ NPI 1821752403 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
1645 AVE D, SUITE C, Billings, MT 59102
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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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana.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)

Sentinel Mental Health Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

14

Medicare enrollment records show 14 clinicians reassign Medicare billing to Sentinel Mental Health Inc, which bills Medicare for the services they deliver. Of these, 6 practice within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 4

Clinical Social Worker10
Nurse Practitioner2
Internal Medicine1
Mental Health Counselor1

Clinicians, nearest first (14)

Denise Schumacher, CLINICIAN
Clinical Social Worker
NPI 1538971379
1645 AVENUE D STE C
Billings, MT 59102
(406) 272-2511
✔ PECOS✔ Accepts Medicare0.2 mi
Kelly Williams, MSW, LCSW
Clinical Social Worker
NPI 1043050297
1645 AVENUE D STE C
Billings, MT 59102
(406) 272-2511
✔ PECOS0.2 mi
Jennifer Finn, LCSW
Clinical Social Worker
NPI 1649436601
1645 PARKHILL DR STE 1
Billings, MT 59102
(406) 690-3717
✔ PECOS✔ Accepts Medicare0.2 mi
Sharda Olson-Meyer, LCSW
Clinical Social Worker
NPI 1902515752
1645 AVENUE D STE C
Billings, MT 59102
(406) 272-2511
✔ PECOS✔ Accepts Medicare1.6 mi
Monica Vonlangen, LCSW
Clinical Social Worker
NPI 1962047126
1230 N 30TH ST
Billings, MT 59101
(406) 534-4558
✔ PECOS✔ Accepts Medicare1.7 mi
Kyanne Wear, LCSW
Clinical Social Worker
NPI 1083910772
404 30TH ST W
Billings, MT 59102
(406) 647-3165
✔ PECOS✔ Accepts Medicare2.5 mi
David Chenault
Clinical Social Worker
NPI 1205592318
3240 DREDGE DR
Helena, MT 59602
(406) 442-7920
✔ PECOS✔ Accepts Medicare176 mi
Tammara Rhodes, LCPC
Mental Health Counselor
NPI 1568009397
3240 DREDGE DR
Helena, MT 59602
(406) 442-7920
✔ PECOS✔ Accepts Medicare176 mi
Lisa Thomas, LCSW
Clinical Social Worker
NPI 1023790441
3240 DREDGE DR
Helena, MT 59602
(406) 437-8664
✔ PECOS176 mi
Jordan Brown, LCSW
Clinical Social Worker
NPI 1285525220
21 N LAST CHANCE GULCH STE 207
Helena, MT 59601
(406) 272-2511
✔ PECOS✔ Accepts Medicare176 mi
Lyndsay Smith, MSW, SWLC
Clinical Social Worker
NPI 1528752896
21 N LAST CHANCE GULCH STE 201
Helena, MT 59601
(406) 272-2511
✔ PECOS✔ Accepts Medicare176 mi
Shannan Patterson, M.D.
Internal Medicine
NPI 1730507740
3870 W RIVER RD STE 126
Tucson, AZ 85741
(520) 219-6616
✔ PECOS938 mi
Dysyan Haynie, PMHNP
Nurse Practitioner
NPI 1275351009
2121 E COUNTY DR
Columbia, MO 65202
(573) 875-1111
✔ PECOS✔ Accepts Medicare951 mi
Nicholas Taylor, PMHNP-BC
Nurse Practitioner
NPI 1689372914
143 WOODLAND DR
Johnson City, TN 37601
(813) 528-5245
✔ PECOS✔ Accepts Medicare1,510 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Sentinel Mental Health Inc's NPI number?

The NPI number for Sentinel Mental Health Inc is 1821752403. It was assigned to this organization in the NPPES registry on October 28, 2021.

Where is Sentinel Mental Health Inc located?

Sentinel Mental Health Inc is located at 1645 Ave D, Suite C, Billings, MT 59102. The listed phone number is (406) 272-2511.

What is Sentinel Mental Health Inc's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Sentinel Mental Health Inc enrolled in Medicare?

Yes. Sentinel Mental Health Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sentinel Mental Health Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 14 clinicians in 4 Medicare specialties reassign their Medicare billing to Sentinel Mental Health Inc. 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. The largest specialties are Clinical Social Worker (10), Nurse Practitioner (2) and Internal Medicine (1). Of these, 6 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Sentinel Mental Health Inc accept?

Health plans from Blue Cross and Blue Shield of Montana list Sentinel Mental Health Inc 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 Sentinel Mental Health Inc was last updated on November 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.