Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kristin Nicole Martens, RN

Registered Nurse in Madison, WI · enumerated 2024.

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

National Provider Identifier

1336962653

Verified

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Registry record

Entity type Individual (Type 1)

Name Kristin Nicole Martens

Credential RN

Sex Female

Practice address 701 Highland Ave, Madison, WI, 53705

Phone (608) 263-5200

Enumeration date Nov 5, 2024

Last updated in NPPES Nov 5, 2024

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

163W00000X Registered Nurse Nursing Service Providers · License 238072-30 (WI) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Kristin Martens?

Kristin Martens is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-05.