Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Karen Cavender Hackmann, GCNS

Gerontology Clinical Nurse Specialist in Columbia, MO · enumerated 2008.

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

National Provider Identifier

1750557633

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Registry record

Entity type Individual (Type 1)

Name Ms. Karen Cavender Hackmann

Credential GCNS

Sex Female

Practice address Columbia, MO, 65212

Phone (573) 884-9924

Fax (573) 884-5735

Enumeration date May 1, 2008

Last updated in NPPES May 1, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

364SG0600X Gerontology Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 089691 (MO) Primary

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 Hackmann practice?

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

What is the NPI number for Karen Hackmann?

The National Provider Identifier (NPI) for Karen Hackmann is 1750557633, 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 2008-05-01.