NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Mary Lynn Gieselman, MSN-ARNP

Nurse Practitioner in Muscatine, IA · enumerated 2005.

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

National Provider Identifier

1053398735

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Mary Lynn Gieselman
Credential MSN-ARNP
Sex Female
Practice address 1616 Cedar St, Muscatine, IA, 52761
Enumeration date Dec 23, 2005
Last updated in NPPES Apr 23, 2013

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License A-048736 (IA) 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 Mary Gieselman practice?
The practice location on file with NPPES is in Muscatine, IA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mary Gieselman?
The National Provider Identifier (NPI) for Mary Gieselman is 1053398735, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-23.