NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Malia H. Duffy, RN

Registered Nurse in Boston, MA · enumerated 2007.

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

National Provider Identifier

1437293420

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Registry record

Entity type Individual (Type 1)
Name Ms. Malia H. Duffy
Credential RN
Sex Female
Practice address 729 Massachusetts Ave, Boston, MA, 02118
Phone (617) 414-7779
Fax (617) 414-7776
Enumeration date Feb 16, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 264793 (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.

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Frequently asked questions

What is the NPI number for Malia Duffy?
The National Provider Identifier (NPI) for Malia Duffy is 1437293420, a Type 1 (individual) record in the CMS NPPES registry.
Where does Malia Duffy practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.