Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Kari Nicole Koster, R.N., A.P.R.N.

Psychiatric/Mental Health Nurse Practitioner in Harrisburg, IL · enumerated 2011.

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

National Provider Identifier

1952693731

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Registry record

Entity type Individual (Type 1)

Name Mrs. Kari Nicole Koster

Credential R.N., A.P.R.N.

Sex Female

Practice address 205 N Main St, Harrisburg, IL, 62946

Phone (630) 837-9000

Fax (630) 837-2639

Enumeration date May 11, 2011

Last updated in NPPES Feb 10, 2020

Taxonomy & licenses

163WP0809X Adult Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License 041380764 (IL) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209012601 (IL) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 277000492 (IL) 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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Kari Koster?

Kari Koster is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-10.