Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Cassandra Ann Martell, LMSW
Social Worker in Rhinebeck, NY · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1508681776
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Registry record
Entity type Individual (Type 1)
Name Cassandra Ann Martell
Credential LMSW
Sex Female
Practice address 6339 Mill St # Sr, Rhinebeck, NY, 12572
Phone (845) 516-7800
Enumeration date Nov 21, 2024
Last updated in NPPES Nov 21, 2024
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 125585-01 (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
What specialty is Cassandra Martell?
Cassandra Martell 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.
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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-21.