Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cherechi V Onyenso, FNP

Family Nurse Practitioner in Calumet City, IL · enumerated 2011.

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

National Provider Identifier

1578855219

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Registry record

Entity type Individual (Type 1)

Name Cherechi V Onyenso

Credential FNP

Sex Female

Practice address 1473 Ring Ring Road, Great Heights Family Medicine, Calumet City, IL, 60409

Phone (708) 743-3637

Fax (779) 423-6041

Enumeration date May 13, 2011

Last updated in NPPES May 13, 2011

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.008342 (IL) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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

Where does Cherechi Onyenso practice?

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

What is the NPI number for Cherechi Onyenso?

The National Provider Identifier (NPI) for Cherechi Onyenso is 1578855219, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-13.