Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Holly Severson, R.N.

Registered Nurse in San Mateo, CA · enumerated 2009.

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

National Provider Identifier

1679702237

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Registry record

Entity type Individual (Type 1)

Name Ms. Holly Severson

Credential R.N.

Sex Female

Practice address 1950 Alameda De Las Pulgas, Suite 157, San Mateo, CA, 94403

Phone (650) 573-2996

Fax (650) 573-2841

Enumeration date Jul 3, 2009

Last updated in NPPES Oct 21, 2014

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 672272 (CA) 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

Where does Holly Severson practice?

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

What is the NPI number for Holly Severson?

The National Provider Identifier (NPI) for Holly Severson is 1679702237, 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 2014-10-21.