NPPES file of Aug 9, 2026

Janine Keiko Kaku, NP

Acute Care Nurse Practitioner · Castro Valley, CA

Janine Keiko Kaku, NP is an acute care nurse practitioner with a practice address in Castro Valley, California, and NPI 1831526466, issued on Sep 27, 2013. Check the license (California 23688, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831526466
Name
Janine Keiko Kaku
Credential
NP
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
23688 CA
Self-reported in NPPES; status is on the state search
Practice location
20103 Lake Chabot RD, Castro Valley, CA 94546
Phone
(510) 727-3015
Enumerated
Sep 27, 2013
Record last updated
Nov 10, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20131227000492); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 20103 Lake Chabot RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alexei AdanEmergency Medicine Physician1679968978
  2. Maria Ait Rais, M.D.Hospitalist Physician1811239304
  3. Latricia Amadeo, RNRegistered Nurse1003407115
  4. Sandhya Ashokkumar, MDCritical Care Medicine (Internal Medicine) Physician1457913402
  5. Oluwaseyi Balasire, M.D.Hospitalist Physician1003235243
  6. Rachna Bali, DOHospitalist Physician1346541554

Verify Janine Keiko Kaku 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 23688    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.

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The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score94.1
  2. Costout of 100 · 30%78.7
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Eden Emergency Medical Group IncCastro Valley, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Acute Care Nurse Practitioner providers in California

There are 1,810 acute care nurse practitioner records in California.

All 1,810 in California → Every provider in Castro Valley →

Other acute care nurse practitioner records in California

  1. Jessica AaronsonLynwood, CA1407355571
  2. Shahrin Abdalian, NPFresno, CA1043716186
  3. Naima Abdirahman, NPLong Beach, CA1215640560
  4. Jenna Abeloe, NPVentura, CA1679090393
  5. Rhonald AbitonaSan Francisco, CA1164993473
  6. Tara Abrams, NPLos Angeles, CA1114536679
  7. Andrea Abramson, RN, CNS, NPRancho Mirage, CA1548187784
  8. Sherrell Abriam, ARNPSacramento, CA1457695132
  9. Christopher Acebedo, NPSan Francisco, CA1104085109
  10. Veronica Acevedo, ACNP-BCLos Angeles, CA1588214795

Common questions

What is Janine Keiko Kaku, NP's NPI number?

Janine Keiko Kaku, NP's National Provider Identifier (NPI) is 1831526466, issued on Sep 27, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Janine Keiko Kaku, NP located?

The NPPES record lists a practice address at 20103 Lake Chabot RD, Castro Valley, CA, 94546. Phone: (510) 727-3015. Providers update this record themselves, so call before visiting.

How can I verify Janine Keiko Kaku, NP's license?

NPPES lists California license number 23688, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

What is Janine Keiko Kaku, NP's MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.