Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Katherine Coyne-Martinez
Clinical Social Worker in Salem, NH · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679479935
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Registry record
Entity type Individual (Type 1)
Name Katherine Coyne-Martinez
Sex Female
Practice address 8 Stiles Rd Ste 110, Salem, NH, 03079
Phone (617) 544-7522
Fax (800) 783-0492
Enumeration date Oct 14, 2026
Last updated in NPPES Oct 22, 2026
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
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 Katherine Coyne-Martinez?
Katherine Coyne-Martinez is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-10-22.