Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Karen A Collins, APN

Family Nurse Practitioner in Peoria, IL · enumerated 2007 · practices at Springfield Clinic LLP.

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

National Provider Identifier

1356535645

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Registry record

Entity type Individual (Type 1)

Name Mrs. Karen A Collins

Credential APN

Sex Female

Practice address 1001 Main St Ste 300, Peoria, IL, 61606

Phone (309) 495-0200

Fax (309) 676-6545

Enumeration date Aug 30, 2007

Last updated in NPPES Oct 28, 2021

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209-006800 (IL) Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 209006721 (IL) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209-006800 (IL) Primary

Other identifiers

Identifier	Type	State	Issuer
279500	Other	IL	MEDICARE GROUP
036078190 1	Medicaid	IL	-
P00434931	Other	IL	RAILROAD MEDICARE

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

Where does Karen Collins practice?

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

What is the NPI number for Karen Collins?

The National Provider Identifier (NPI) for Karen Collins is 1356535645, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-28.