Stefan Greendyk, LCSW
NPI 1720799380 · Clinical Social Worker · West Milford, NJ
Stefan Greendyk, LCSW is a Clinical Social Worker provider in West Milford, NJ (NPI 1720799380).
Provider details
- NPI number
- 1720799380
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 44SC06112400 (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
3 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
- 2022-12-05
- Last updated
- 2022-12-05
- Certified
- 2022-12-05
Frequently asked questions
- What is Stefan Greendyk's NPI number?
- Stefan Greendyk's National Provider Identifier (NPI) is 1720799380, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stefan Greendyk's specialty?
- Stefan Greendyk is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Stefan Greendyk located?
- Stefan Greendyk's practice location on file with NPPES is 1560 Union Valley Rd, West Milford, NJ 07480-8000.
- What is Stefan Greendyk's phone number?
- The practice phone number listed in the NPPES registry for Stefan Greendyk is (973) 907-0545.
- Is Stefan Greendyk's NPI active?
- Yes — Stefan Greendyk's NPI (1720799380) is active in the NPPES registry as of the last update on 2022-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.