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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alexa Colgrove Curtis, FNP, PHD

Family Nurse Practitioner in Nevada City, CA · enumerated 2007 · practices at Sierra Family Medical Clinic Inc.

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

National Provider Identifier

1649326539

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Registry record

Entity type Individual (Type 1)
Name Dr. Alexa Colgrove Curtis
Credential FNP, PHD
Sex Female
Practice address 590 Searls Ave Ste A, Nevada City, CA, 95959
Fax (530) 292-4296
Enumeration date Jan 25, 2007
Last updated in NPPES Feb 20, 2024

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP4486 (CA) Primary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

Other identifiers

Identifier Type State Issuer
RN3753760 Medicaid CA -

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

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 Alexa Curtis?
Alexa Curtis is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. 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 2024-02-20.