Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Karen Edna Aronson, R.N.
Registered Nurse in Chico, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1518980903
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Registry record
Entity type Individual (Type 1)
Name Karen Edna Aronson
Credential R.N.
Sex Female
Practice address 1665 Esplanade, Chico, CA, 95926
Phone (530) 895-0423
Fax (530) 895-1872
Enumeration date Jul 26, 2006
Last updated in NPPES Mar 7, 2023
Taxonomy & licenses
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam.
About the RN credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 270516 | Other | CA | RN LICENSE |
| GROO43570 | Medicaid | CA | - |
| 9667 | Other | CA | NURSE PRACTITIONER |
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.
Frequently asked questions
Where does Karen Aronson practice?
The practice location on file with NPPES is in Chico, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Karen Aronson?
The National Provider Identifier (NPI) for Karen Aronson is 1518980903, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Holly Kralj Nurse Practitioner · Chico, CA NPI 1083659833 Susan Kehm Specialist · Chico, CA NPI 1578586509 Walter Mazen Obstetrics Physician · Chico, CA NPI 1649292624 Steven Lazaro Obstetrics Physician · Chico, CA NPI 1306860861 Obgyn Associates of Chico Specialist · Chico, CA NPI 1316050537 Alicia Taylor Obstetrics & Gynecology Physician · Chico, CA NPI 1104926112 Alicia Wenberg Obstetrics & Gynecology Physician · Chico, CA NPI 1578820080 Enloe Medical Center Obstetrics & Gynecology Physician · Chico, CA NPI 1023420726
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.