William Wertheim, LCSW
NPI 1013997287 · Clinical Social Worker · Mount Vernon, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Wertheim, LCSW is a Clinical Social Worker provider in Mount Vernon, NY (NPI 1013997287).
Provider details
- NPI number
- 1013997287
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- R018792-1 (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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 37 W 57th St Ste 601New York, NY 10019-3476Phone: (914) 260-9757Fax: (914) 664-5681
Registry dates
- Enumerated
- 2006-01-22
- Last updated
- 2022-07-21
Frequently asked questions
- What is William Wertheim's NPI number?
- William Wertheim's National Provider Identifier (NPI) is 1013997287, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Wertheim's specialty?
- William Wertheim is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is William Wertheim located?
- William Wertheim's practice location on file with NPPES is 100 Sycamore Ave, Mount Vernon, NY 10553-1216.
- What is William Wertheim's phone number?
- The practice phone number listed in the NPPES registry for William Wertheim is (914) 664-5681.
- Does William Wertheim accept Medicare?
- William Wertheim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Wertheim's NPI active?
- Yes — William Wertheim's NPI (1013997287) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.