Diane Marr Longmire, MSW, LMHC
NPI 1205133881 · Mental Health Counselor · Mount Vernon, WA
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Marr Longmire, MSW, LMHC is a Mental Health Counselor provider in Mount Vernon, WA (NPI 1205133881).
Provider details
- NPI number
- 1205133881
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- MSW, LMHC
- Sex
- Female
- Sole proprietor
- Yes
- License
- CG 60122469 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
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
Registry dates
- Enumerated
- 2011-02-17
- Last updated
- 2023-03-21
- Certified
- 2023-03-21
Frequently asked questions
- What is Diane Marr Longmire's NPI number?
- Diane Marr Longmire's National Provider Identifier (NPI) is 1205133881, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Marr Longmire's specialty?
- Diane Marr Longmire is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Diane Marr Longmire located?
- Diane Marr Longmire's practice location on file with NPPES is 811 Cleveland Ave Ste 104, Mount Vernon, WA 98273-4210.
- What is Diane Marr Longmire's phone number?
- The practice phone number listed in the NPPES registry for Diane Marr Longmire is (360) 474-3072.
- Does Diane Marr Longmire accept Medicare?
- Diane Marr Longmire is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Marr Longmire's NPI active?
- Yes — Diane Marr Longmire's NPI (1205133881) is active in the NPPES registry as of the last update on 2023-03-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.