NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Hawa D Diallo, RN

Psychiatric/Mental Health Registered Nurse in Lexington, MA · enumerated 2023.

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

National Provider Identifier

1508568056

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Hawa D Diallo
Credential RN
Sex Female
Practice address Lexington, MA, 02421
Enumeration date Mar 20, 2023
Last updated in NPPES Mar 20, 2023

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

Taxonomy & licenses

163WP0808X Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License RN2369103 (MA) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 Hawa Diallo?
Hawa Diallo is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Registered Nurse. 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.

Other providers at this practice address

Browse all →
Eliot Community Human Services Mental Health Clinic/Center (Including Community Mental Health Center) · Lexington, MA NPI 1932271632 Eliot Community Human Services, Inc. Adult Day Care Clinic/Center · Lexington, MA NPI 1588876643 Judith Stein Psychologist · Lexington, MA NPI 1194930065 Institute for Learning and Development Developmental Disabilities Clinic/Center · Lexington, MA NPI 1538366778 Eliot Community Human Services Mental Health Clinic/Center (Including Community Mental Health Center) · Lexington, MA NPI 1205026523 Eliot Community Human Services Mental Health Clinic/Center (Including Community Mental Health Center) · Lexington, MA NPI 1225229958 Patricia Ngaruiya Psychiatric/Mental Health Nurse Practitioner · Lexington, MA NPI 1548593288 Jennifer Dacey Clinical Social Worker · Lexington, MA NPI 1063705812

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-20.