Big Sky Therapeutic Services, PLLC
NPI 1588966584 · Community/Behavioral Health Agency · Great Falls, MT
Big Sky Therapeutic Services, PLLC is a Community/Behavioral Health Agency organization in Great Falls, MT (NPI 1588966584).
Provider details
- NPI number
- 1588966584
- Entity type
- Organization
- Primary specialty
- Community/Behavioral Health AgencyAgencies
- Organization subpart
- No
- Authorized official
- Brett Gilleo, Owner(406) 240-2045
Specialties & taxonomies
Agencies
- Counselor101Y00000X
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
- Professional Counselor101YP2500X
Behavioral Health & Social Service Providers
- Behavior Analyst103K00000X
Behavioral Health & Social Service Providers
- Cognitive & Behavioral Psychologist103TB0200X
Behavioral Health & Social Service Providers
- Clinical Child & Adolescent Psychologist103TC2200X
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Big Sky Therapy
Registry dates
- Enumerated
- 2010-11-23
- Last updated
- 2023-02-25
- Certified
- 2020-08-14
Frequently asked questions
- What is Big Sky Therapeutic Services, PLLC's NPI number?
- Big Sky Therapeutic Services, PLLC's National Provider Identifier (NPI) is 1588966584, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Big Sky Therapeutic Services, PLLC?
- Big Sky Therapeutic Services, PLLC is classified in the NPPES registry as Community/Behavioral Health Agency (Agencies).
- Where is Big Sky Therapeutic Services, PLLC located?
- Big Sky Therapeutic Services, PLLC's practice location on file with NPPES is 1601 2nd Ave N Ste 700, Great Falls, MT 59401-3288.
- What is Big Sky Therapeutic Services, PLLC's phone number?
- The practice phone number listed in the NPPES registry for Big Sky Therapeutic Services, PLLC is (406) 205-0452.
- Who is the authorized official for Big Sky Therapeutic Services, PLLC?
- The authorized official listed on Big Sky Therapeutic Services, PLLC's NPPES record is Brett Gilleo, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Big Sky Therapeutic Services, PLLC's NPI active?
- Yes — Big Sky Therapeutic Services, PLLC's NPI (1588966584) is active in the NPPES registry as of the last update on 2023-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.