Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Douglas Greenberg, LCSW
Social Worker in Bronx, NY · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1548071699
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Registry record
Entity type Individual (Type 1)
Name Mr. Douglas Greenberg
Credential LCSW
Sex Male
Practice address 1888 Westchester Ave, Bronx, NY, 10472
Phone (646) 301-4812
Enumeration date Jan 17, 2025
Last updated in NPPES Jan 21, 2025
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 074920-01 (NY) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy.
About the LCSW credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Douglas Greenberg practice?
The practice location on file with NPPES is in Bronx, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Douglas Greenberg?
The National Provider Identifier (NPI) for Douglas Greenberg is 1548071699, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-21.