Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lucy Mendez-Arroyo, R.Ph.

Pharmacist in East Boston, MA · enumerated 2005.

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

National Provider Identifier

1073510830

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Registry record

Entity type Individual (Type 1)

Name Lucy Mendez-Arroyo

Credential R.Ph.

Sex Female

Practice address 10 Gove St, East Boston, MA, 02128

Phone (617) 568-4000

Enumeration date Jul 7, 2005

Last updated in NPPES Jul 13, 2026

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 24648 (MA) Primary

183500000X Pharmacist Pharmacy Service Providers · License 4609 (PR) Secondary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential

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 → Validate an NPI →

Frequently asked questions

What specialty is Lucy Mendez-Arroyo?

Lucy Mendez-Arroyo 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.

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.

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