NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Melissa K Callaghan

Pharmacist in Chestnut Hill, MA · enumerated 2020 · practices at Cvs Pharmacy Inc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649874629

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Registry record

Entity type Individual (Type 1)
Name Melissa K Callaghan
Sex Female
Practice address 647 Vfw Pkwy, Chestnut Hill, MA, 02467
Phone (617) 469-5264
Enumeration date Nov 30, 2020
Last updated in NPPES Nov 30, 2020

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 25771 (MA) 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.

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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 Melissa Callaghan?
Melissa Callaghan is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-30.