William Mazzuto, LCSW
NPI 1306208939 · Clinical Social Worker · Midland Park, NJ
William Mazzuto, LCSW is a Clinical Social Worker provider in Midland Park, NJ (NPI 1306208939).
Provider details
- NPI number
- 1306208939
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 44SC05680300 (NJ)
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
10 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
- 2016-03-23
- Last updated
- 2016-03-23
Frequently asked questions
- What is William Mazzuto's NPI number?
- William Mazzuto's National Provider Identifier (NPI) is 1306208939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mazzuto's specialty?
- William Mazzuto is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is William Mazzuto located?
- William Mazzuto's practice location on file with NPPES is 323 Godwin Ave, Midland Park, NJ 07432-1534.
- What is William Mazzuto's phone number?
- The practice phone number listed in the NPPES registry for William Mazzuto is (201) 218-4556.
- Is William Mazzuto's NPI active?
- Yes — William Mazzuto's NPI (1306208939) is active in the NPPES registry as of the last update on 2016-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.