Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christen Mikkelson, RN

Registered Nurse in Saint Helena, CA · enumerated 2026.

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

National Provider Identifier

1790635522

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Registry record

Entity type Individual (Type 1)

Name Christen Mikkelson

Credential RN

Sex Female

Practice address 10 Woodland Rd, Saint Helena, CA, 94574

Phone (707) 963-3611

Enumeration date Jan 31, 2026

Last updated in NPPES Jan 31, 2026

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 95139599 (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

What is the NPI number for Christen Mikkelson?

The National Provider Identifier (NPI) for Christen Mikkelson is 1790635522, a Type 1 (individual) record in the CMS NPPES registry.

Where does Christen Mikkelson practice?

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

Other providers at this practice address

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William Duge Diagnostic Radiology Physician · Saint Helena, CA NPI 1275535700 Randy P. Hausted M.D. Inc Anatomic Pathology & Clinical Pathology Physician · St. Helena, CA NPI 1548254139 Hirofumi Hashimoto Internal Medicine Physician · Saint Helena, CA NPI 1104812585 David Carelock Certified Registered Nurse Anesthetist · Saint Helena, CA NPI 1790773596 St. Helena Hospital General Acute Care Hospital · Saint Helena, CA NPI 1720078082 Ari Umutyan Medical Oncology Physician · Saint Helena, CA NPI 1275516171 Edward Stump Emergency Medicine Physician · Saint Helena, CA NPI 1619950193 Dan Clay Emergency Medicine Physician · Saint Helena, CA NPI 1033192547

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-31.