Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Cassandra J Lacher, DO

Medical Oncology Physician in Bourbonnais, IL · enumerated 2011.

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

National Provider Identifier

1467746651

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Registry record

Entity type Individual (Type 1)

Name Dr. Cassandra J Lacher

Credential DO

Sex Female

Practice address 200 Riverside Dr, Bourbonnais, IL, 60914

Phone (815) 933-9660

Fax (812) 886-6566

Enumeration date Jun 5, 2011

Last updated in NPPES Feb 6, 2024

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 02005519A (IN) Secondary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 036163032 (IL) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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 Cassandra Lacher practice?

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

What is the NPI number for Cassandra Lacher?

The National Provider Identifier (NPI) for Cassandra Lacher is 1467746651, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-06.