NPI Portal NPI Lookup & Verification

John Page Cotton

John Page Cotton is a Clinical Social Worker provider (Social Worker) practicing in Milton, MA, registered in the NPPES registry with NPI 1730029521 since 2026.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1730029521
Entity type Individual (Type 1)
Name John Page Cotton
Sex Male
Practice address Milton, MA, 02186
Phone 6177334372
Enumeration date 2026-03-31
Last updated in NPPES 2026-03-31

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
1041C0700X Clinical Social Worker Primary MA
Copy-ready billing details
Provider: John Cotton
NPI: 1730029521
Taxonomy: 1041C0700X (Clinical Social Worker)
Address: Milton, MA, 02186

Verify this record

Cross-check NPI 1730029521 against the authoritative CMS record: view John Page Cotton on the official NPPES registry .

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. Read the full guide or validate an NPI number.

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 John Cotton?
John Cotton 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-03-31.