Sylvia Longknife, LCPC
NPI 1942490511 · Mental Health Counselor · Polson, MT
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sylvia Longknife, LCPC is a Mental Health Counselor provider in Polson, MT (NPI 1942490511).
Provider details
- NPI number
- 1942490511
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LCPC
- Sex
- Female
- Sole proprietor
- No
- License
- 1262 (MT)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
Registry dates
- Enumerated
- 2007-07-30
- Last updated
- 2007-07-30
Frequently asked questions
- What is Sylvia Longknife's NPI number?
- Sylvia Longknife's National Provider Identifier (NPI) is 1942490511, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sylvia Longknife's specialty?
- Sylvia Longknife is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Sylvia Longknife located?
- Sylvia Longknife's practice location on file with NPPES is 107 8th Ave W, Polson, MT 59860-2911.
- What is Sylvia Longknife's phone number?
- The practice phone number listed in the NPPES registry for Sylvia Longknife is (406) 883-6333.
- Does Sylvia Longknife accept Medicare?
- Sylvia Longknife is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sylvia Longknife's NPI active?
- Yes — Sylvia Longknife's NPI (1942490511) is active in the NPPES registry as of the last update on 2007-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.