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Mary Ann Marrs, CNP

Clinical Nurse Specialist in Rapid City, SD · enumerated 2005.

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

National Provider Identifier

1144201708

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Registry record

Entity type Individual (Type 1)
Name Mary Ann Marrs
Credential CNP
Sex Female
Practice address 7220 S Highway 16, Rapid City, SD, 57702
Phone (605) 341-1414
Fax (605) 341-7062
Enumeration date Nov 10, 2005
Last updated in NPPES Dec 6, 2012

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R029403 (SD) Secondary
364S00000X Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License SD-CNP CP000412 (SD) Primary

Other identifiers

Identifier Type State Issuer
P00427538 Other - MEDICARE RAILROAD PTAN
1254560001 Other SD CIGNA MEDICARE
6827452 Medicaid SD -

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.

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Frequently asked questions

What is the NPI number for Mary Marrs?
The National Provider Identifier (NPI) for Mary Marrs is 1144201708, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Marrs practice?
The practice location on file with NPPES is in Rapid City, SD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-06.