Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Demetrius Alexander Fassas, CBHPSS

Peer Specialist in Butte, MT · enumerated 2021 · practices at Butte Spirit Center.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1548925654

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Registry record

Entity type Individual (Type 1)

Name Demetrius Alexander Fassas

Credential CBHPSS

Sex Male

Practice address 609 W Galena St, Butte, MT, 59701

Phone (406) 640-8069

Fax (406) 303-5264

Enumeration date Nov 3, 2021

Last updated in NPPES Nov 3, 2021

Taxonomy & licenses

175T00000X Peer Specialist Other Service Providers · License BBH-BHPS-CRT-44134 (MT) Primary

Other identifiers

Identifier	Type	State	Issuer
BBH-BHPS-CRT-44134	Other	MT	BOARD OF BEHAVIORAL HEALTH, CERTIFIED PEER SUPPORT SPECIALIST LICENSE #

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Demetrius Fassas?

The National Provider Identifier (NPI) for Demetrius Fassas is 1548925654, a Type 1 (individual) record in the CMS NPPES registry.

Where does Demetrius Fassas practice?

The practice location on file with NPPES is in Butte, MT. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Butte Spirit Center Substance Use Disorder Rehabilitation Clinic/Center · Butte, MT NPI 1477218584 Ronald Fischer Addiction (Substance Use Disorder) Counselor · Butte, MT NPI 1992524441

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-03.