Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gladstone Nathaniel Marshall, LMSW
Social Worker in Elmont, NY · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1013217587
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Registry record
Entity type Individual (Type 1)
Name Gladstone Nathaniel Marshall
Credential LMSW
Sex Male
Practice address 621 Elmont Rd, Elmont, NY, 11003
Phone (516) 616-0580
Fax (516) 616-0582
Enumeration date Oct 29, 2010
Last updated in NPPES Oct 29, 2010
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 029573-1 (NY) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 23-7379093 | Medicaid | NY | - |
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Gladstone Marshall?
Gladstone Marshall is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Martin De Porres School Social Worker · Elmont, NY NPI 1649580861 Cindy Varghese Social Worker · Elmont, NY NPI 1164722773 Joanna Suppa Clinical Social Worker · Elmont, NY NPI 1730482415 Catherine Dambrose Social Worker · Elmont, NY NPI 1790077329 Alison Komorowski Speech-Language Pathologist · Elmont, NY NPI 1841578150 Marilyn Soeder Clinical Social Worker · Elmont, NY NPI 1114350782 Christine Montemarano Social Worker · Elmont, NY NPI 1780019711 Martin De Porres School for Exceptional Children, Inc. Foster Care Agency · Elmont, NY NPI 1326408469
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-29.