Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Kelsey Peifer, DNP, FNP-BC, APRN

Nurse Practitioner in Sycamore, IL · enumerated 2022.

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

National Provider Identifier

1437810876

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Registry record

Entity type Individual (Type 1)

Name Dr. Kelsey Peifer

Credential DNP, FNP-BC, APRN

Sex Female

Practice address 165 E Plank Rd, Sycamore, IL, 60178

Phone (844) 599-3700

Enumeration date Jan 7, 2022

Last updated in NPPES Aug 19, 2024

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209024180 (IL) Primary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209024180 (IL) Secondary

DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP 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 Kelsey Peifer?

The National Provider Identifier (NPI) for Kelsey Peifer is 1437810876, a Type 1 (individual) record in the CMS NPPES registry.

Where does Kelsey Peifer practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-19.