NPPES file of Aug 9, 2026

Nancy Jean Larson, RN

Case Management Registered Nurse · Los Gatos, CA

Nancy Jean Larson, RN is a case management registered nurse with a practice address in Los Gatos, California, and NPI 1578997227, issued on Aug 29, 2013. Check the license (California 578844, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578997227
Name
Nancy Jean Larson
Credential
RN
Primary taxonomy
Case Management Registered Nurse 163WC0400X
License number
578844 CA
Self-reported in NPPES; status is on the state search
Practice location
19450 Black RD, Los Gatos, CA 95033
Phone
(408) 354-3525
Enumerated
Aug 29, 2013
Record last updated
Aug 29, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicaid ID
3 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Verify Nancy Jean Larson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 578844
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Nancy Jean Larson among 1,025 case management registered nurse records in California

Nancy Jean Larson, RN is one of 1,025 case management registered nurse records with a practice address in California. 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2013, is newer than 41% of them.

  • NPI issued2013 · 41% of these records are older, 55% newer
  • In a Medicare fileNo · 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2013 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163WC0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Case Management Registered Nurse providers in California

There are 1,025 case management registered nurse records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 case management registered nurse records with the nearest ZIP codes

  1. Eva Gonzales, REGISTERED NURSEMorgan Hill, CA 950371912269481
  2. Olga ChavezHollister, CA 950231700739547
  3. Audelia GalindoHollister, CA 950231578713095
  4. Rosario Arellano, R.N.San Martin, CA 950461932381290
  5. Belia Castillo, R.N.San Martin, CA 950461609058189
  6. Susan Deranleau-Silveira, R.N.San Martin, CA 950461629259783
  7. Ann EstisSan Martin, CA 950461285815902
  8. Conception Macias, R.N.San Martin, CA 950461073795548

Common questions

What is Nancy Jean Larson, RN's NPI number?

Nancy Jean Larson, RN's National Provider Identifier (NPI) is 1578997227, issued on Aug 29, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Nancy Jean Larson, RN located?

The NPPES record lists a practice address at 19450 Black RD, Los Gatos, CA, 95033. Phone: (408) 354-3525. Providers update this record themselves, so call before visiting.

How can I verify Nancy Jean Larson, RN's license?

NPPES lists California license number 578844, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.