NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ellen Knipfer, MSN, RN, FNP-BC

Family Nurse Practitioner in Algoma, WI · enumerated 2014 · practices at Door County Memorial Hospital.

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

National Provider Identifier

1144629114

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ellen Knipfer
Credential MSN, RN, FNP-BC
Sex Female
Practice address 815 Jefferson St, Algoma, WI, 54201
Enumeration date Aug 15, 2014
Last updated in NPPES Nov 17, 2023

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 5998-33 (WI) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier Type State Issuer
164467-30 Other WI REGISTERED NURSE

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 Ellen Knipfer?
The National Provider Identifier (NPI) for Ellen Knipfer is 1144629114, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ellen Knipfer practice?
The practice location on file with NPPES is in Algoma, WI. 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 2023-11-17.