Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marnie A Geiger, CRNA

Certified Registered Nurse Anesthetist in Fond Du Lac, WI · enumerated 2006.

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

National Provider Identifier

1790841039

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Registry record

Entity type Individual (Type 1)

Name Marnie A Geiger

Credential CRNA

Sex Female

Practice address 210 Wisconsin American Dr, Fond Du Lac, WI, 54937

Phone (920) 907-7000

Fax (920) 907-7021

Enumeration date Dec 29, 2006

Last updated in NPPES Nov 21, 2025

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 122256-030 (WI) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
44359500	Medicaid	WI	-

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 Marnie Geiger practice?

The practice location on file with NPPES is in Fond Du Lac, WI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Marnie Geiger?

The National Provider Identifier (NPI) for Marnie Geiger is 1790841039, 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 2025-11-21.