Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gil Weiss, LMSW
Social Worker in New York, NY · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558027102
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Registry record
Entity type Individual (Type 1)
Name Gil Weiss
Credential LMSW
Sex Male
Practice address 226 E 52nd St, New York, NY, 10022
Phone (212) 712-8800
Enumeration date Nov 9, 2021
Last updated in NPPES Nov 16, 2021
Taxonomy & licenses
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
What is the NPI number for Gil Weiss?
The National Provider Identifier (NPI) for Gil Weiss is 1558027102, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gil Weiss practice?
The practice location on file with NPPES is in New York, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Marianne Chai Psychiatry Physician · New York, NY NPI 1821295577 New York Center for Living Voluntary or Charitable Agency · New York, NY NPI 1114171824 Center for Living Adolescent and Children Mental Health Clinic/Center · New York, NY NPI 1386884732 New York Center for Living, Inc. Substance Use Disorder Rehabilitation Clinic/Center · New York, NY NPI 1659640894 Kristin Thomson Marriage & Family Therapist · New York, NY NPI 1114347184 Colby Kossoy Mental Health Counselor · New York, NY NPI 1356921951 Daniel Decotiis Social Worker · New York, NY NPI 1891378493 Peter Chernack Clinical Social Worker · New York, NY NPI 1063177814
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-16.