David Williams, LCSW
NPI 1255850491 · Clinical Social Worker · Helena, MT
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Williams, LCSW is a Clinical Social Worker provider in Helena, MT (NPI 1255850491).
Provider details
- NPI number
- 1255850491
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
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
8 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2017-09-19
- Last updated
- 2019-01-05
Frequently asked questions
- What is David Williams's NPI number?
- David Williams's National Provider Identifier (NPI) is 1255850491, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Williams's specialty?
- David Williams is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is David Williams located?
- David Williams's practice location on file with NPPES is 314 N Last Chance Gulch Ste 204, Helena, MT 59601-5012.
- What is David Williams's phone number?
- The practice phone number listed in the NPPES registry for David Williams is (406) 214-2774.
- Does David Williams accept Medicare?
- David Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Williams's NPI active?
- Yes — David Williams's NPI (1255850491) is active in the NPPES registry as of the last update on 2019-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.