Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Robert Litwak, LMSW
Social Worker in White Plains, NY · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1487888376
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Registry record
Entity type Individual (Type 1)
Name Mr. Robert Litwak
Credential LMSW
Sex Male
Practice address 29 Sterling Ave, White Plains, NY, 10606
Phone (914) 949-7035
Enumeration date May 7, 2009
Last updated in NPPES May 7, 2009
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 033246-1 (NY) Primary
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
How do I verify Robert Litwak's NPI record?
Cross-check NPI 1487888376 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1487888376 active?
Yes, as of the latest NPPES snapshot, NPI 1487888376 is active (record last updated 2009-05-07).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-07.