NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lindsay Diane Duff, NP

Adult Health Nurse Practitioner in Damariscotta, ME · enumerated 2012.

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

National Provider Identifier

1912253246

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Lindsay Diane Duff
Credential NP
Sex Female
Practice address 24 Miles Center Way, Damariscotta, ME, 04543
Phone (207) 563-4250
Enumeration date Jul 24, 2012
Last updated in NPPES Oct 10, 2022

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN278529 (MA) Secondary
363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License CNP201053 (ME) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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 is the NPI number for Lindsay Duff?
The National Provider Identifier (NPI) for Lindsay Duff is 1912253246, a Type 1 (individual) record in the CMS NPPES registry.
Where does Lindsay Duff practice?
The practice location on file with NPPES is in Damariscotta, ME. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-10.