Mervin Langley, LCSW
NPI 1932317831 · Clinical Social Worker · Lake Geneva, WI
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mervin Langley, LCSW is a Clinical Social Worker provider in Lake Geneva, WI (NPI 1932317831).
Provider details
- NPI number
- 1932317831
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- 2853 (WI)
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
19 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
- 2007-05-21
- Last updated
- 2024-03-15
- Certified
- 2024-03-15
Frequently asked questions
- What is Mervin Langley's NPI number?
- Mervin Langley's National Provider Identifier (NPI) is 1932317831, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mervin Langley's specialty?
- Mervin Langley is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mervin Langley located?
- Mervin Langley's practice location on file with NPPES is 146 E Geneva Sq, Lake Geneva, WI 53147-9694.
- What is Mervin Langley's phone number?
- The practice phone number listed in the NPPES registry for Mervin Langley is (877) 666-7223.
- Does Mervin Langley accept Medicare?
- Mervin Langley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mervin Langley's NPI active?
- Yes — Mervin Langley's NPI (1932317831) is active in the NPPES registry as of the last update on 2024-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.