William Lewis, LCSW
NPI 1558790279 · Clinical Social Worker · Long Island City, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Lewis, LCSW is a Clinical Social Worker provider in Long Island City, NY (NPI 1558790279).
Provider details
- NPI number
- 1558790279
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- R03116 (NY)
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
12 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
- 2013-11-04
- Last updated
- 2013-11-04
Frequently asked questions
- What is William Lewis's NPI number?
- William Lewis's National Provider Identifier (NPI) is 1558790279, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Lewis's specialty?
- William Lewis is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is William Lewis located?
- William Lewis's practice location on file with NPPES is 2215 43rd Ave Fl 2, Long Island City, NY 11101-5018.
- What is William Lewis's phone number?
- The practice phone number listed in the NPPES registry for William Lewis is (718) 389-5100.
- Does William Lewis accept Medicare?
- William Lewis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Lewis's NPI active?
- Yes — William Lewis's NPI (1558790279) is active in the NPPES registry as of the last update on 2013-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.