NPPES file of Aug 9, 2026

John Brennan, CRNA

Certified Registered Nurse Anesthetist · Riverside, CA

John Brennan, CRNA is a certified registered nurse anesthetist with a practice address in Riverside, California, and NPI 1356876718, issued on Apr 24, 2017. Check the license (California NA95001107, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356876718
Name
John Brennan
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License numbers
NA95001107 CA
749914 NY
Self-reported in NPPES; status is on the state search
Practice location
10800 Magnolia Ave, Riverside, CA 92505
Phone
(951) 353-4619
Enumerated
Apr 24, 2017
Record last updated
Nov 30, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(877) 768-6140
Medicare enrollment
Enrolled (PECOS I20210210003426); 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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8 nearest certified registered nurse anesthetist records → All 2,943 in California → Look up another NPI →

Also registered at 10800 Magnolia Ave

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

  1. Joseph Abapo, MDPediatrics Physician1841348786
  2. Hussein Abdulrassoul, MDOrthopaedic Surgery Physician1972123891
  3. Kimberly Adams, PA-CMedical Physician Assistant1053522870
  4. Alfredo Aguiar, PAPhysician Assistant1043368970
  5. Michael Aguinaldo, M.D.Pediatrics Physician1851531487
  6. Maria Aguirre, MDPediatrics Physician1295806255

Verify John Brennan 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 NA95001107    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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Bills Medicare through one group practice

  1. Regents OF The University OFOrange, CA

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

John Brennan among 2,943 certified registered nurse anesthetist records in California

John Brennan, CRNA is one of 2,943 certified registered nurse anesthetist records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 62% of them.

  • NPI issued2017 · 62% of these records are older, 34% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2017 · median 2016 among the 2,089 with a school on file
  • Record last updated2021 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Certified Registered Nurse Anesthetist providers in California

There are 2,943 certified registered nurse anesthetist records in California.

All 2,943 in California → Every provider in Riverside → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Joseph Arellano, CRNARiverside, CA 925051821146747
  2. Jeffrey Bilhorn, CRNARiverside, CA 925051780777698
  3. Laura Chavez, CRNARiverside, CA 925051396893319
  4. John Dellaripa, CRNARiverside, CA 925051720039696
  5. Michael Epperson, CRNARiverside, CA 925051760541486
  6. Cliff Fontelera, CRNARiverside, CA 925051114075033
  7. Cathy Forward, CRNARiverside, CA 925051346398237
  8. Kathleen Green, CRNARiverside, CA 925051386792224

Common questions

What is John Brennan, CRNA's NPI number?

John Brennan, CRNA's National Provider Identifier (NPI) is 1356876718, issued on Apr 24, 2017. An NPI identifies a provider in billing; it is not a license.

Where is John Brennan, CRNA located?

The NPPES record lists a practice address at 10800 Magnolia Ave, Riverside, CA, 92505. Phone: (951) 353-4619. Providers update this record themselves, so call before visiting.

How can I verify John Brennan, CRNA's license?

NPPES lists California license number NA95001107, 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. 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.