Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Sarah Knobbe, FNP-BC

Q: What is the NPI number for Sarah Knobbe?

The National Provider Identifier (NPI) for Sarah Knobbe is 1578032546, a Type 1 (individual) record in the CMS NPPES registry.

Nurse Practitioner in Warrenville, IL · enumerated 2018 · practices at Cdh Cancer Center.

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

National Provider Identifier

1578032546

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Registry record

Entity type Individual (Type 1)

Name Mrs. Sarah Knobbe

Credential FNP-BC

Sex Female

Practice address 4405 Weaver Pkwy, Warrenville, IL, 60555

Phone (630) 352-5450

Fax (630) 352-5499

Enumeration date Nov 19, 2018

Last updated in NPPES Mar 12, 2024

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.018266 (IL) Primary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.018266 (IL) Secondary

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 Sarah Knobbe?

The National Provider Identifier (NPI) for Sarah Knobbe is 1578032546, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sarah Knobbe practice?

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

Other providers at this practice address

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Douglas Tippin Radiation Oncology Physician · Warrenville, IL NPI 1013900281 John Ayers Hematology & Oncology Physician · Warrenville, IL NPI 1477540821 Michael Kahn Medical Oncology Physician · Warrenville, IL NPI 1700873643 Christy Kesslering Radiation Oncology Physician · Warrenville, IL NPI 1427049543 Linda Ferris Hematology & Oncology Physician · Warrenville, IL NPI 1902886021 Carlene Porter Nurse Practitioner · Warrenville, IL NPI 1003877630 Robert Love Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Warrenville, IL NPI 1336104041 Laura Horvath Hematology & Oncology Physician · Warrenville, IL NPI 1265522866

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-12.