Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Nancy Lynne Duncan, RN,CNM

Q: What is the NPI number for Nancy Duncan?

The National Provider Identifier (NPI) for Nancy Duncan is 1235285693, a Type 1 (individual) record in the CMS NPPES registry.

Nurse Practitioner in Brattleboro, VT · enumerated 2007.

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

National Provider Identifier

1235285693

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Registry record

Entity type Individual (Type 1)

Name Ms. Nancy Lynne Duncan

Credential RN,CNM

Sex Female

Practice address 29 Reed St, Brattleboro, VT, 05301

Phone (802) 254-2971

Enumeration date Jan 26, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R16571 (ME) 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

Where does Nancy Duncan practice?

The practice location on file with NPPES is in Brattleboro, VT. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Nancy Duncan?

The National Provider Identifier (NPI) for Nancy Duncan is 1235285693, a Type 1 (individual) record in the CMS NPPES registry.

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