NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Chelsea-Lynne Uluwehi Kosareff, PNP, RN, CPNP-PC

Pediatric Nurse Practitioner in Madera, CA · enumerated 2024.

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

National Provider Identifier

1831929546

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Chelsea-Lynne Uluwehi Kosareff
Credential PNP, RN, CPNP-PC
Sex Female
Practice address 9300 Valley Childrens Pl, Madera, CA, 93636
Phone (559) 353-5404
Enumeration date Aug 6, 2024
Last updated in NPPES Aug 6, 2024

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95030719 (CA) 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

What is the NPI number for Chelsea-Lynne Kosareff?
The National Provider Identifier (NPI) for Chelsea-Lynne Kosareff is 1831929546, a Type 1 (individual) record in the CMS NPPES registry.
Where does Chelsea-Lynne Kosareff practice?
The practice location on file with NPPES is in Madera, CA. 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 2024-08-06.