NPPES file of Aug 9, 2026

Cassandra Ann Madigan, DNP, FNP-C

Nurse Practitioner · San Diego, CA

Cassandra Ann Madigan, DNP, FNP-C is a nurse practitioner with a practice address in San Diego, California, and NPI 1679425524, issued on Feb 12, 2026. Check the license (California 95038442, 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
1679425524
Name
Cassandra Ann Madigan
Credential
DNP, FNP-C
Primary taxonomy
Nurse Practitioner 363L00000X
License number
95038442 CA
Self-reported in NPPES; status is on the state search
Practice location
8975 Balboa Ave, San Diego, CA 92123
Phone
(858) 499-2703
Enumerated
Feb 12, 2026
Record last updated
Feb 12, 2026
Medicare enrollment
Enrolled (PECOS I20260513000758); 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 nurse practitioner records → All 8,223 in California → Look up another NPI →

Also registered at 8975 Balboa Ave

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

  1. Jordan Bick, CCC-SLPSpeech-Language Pathologist1962886135
  2. Sidavann Decastro, OTROccupational Therapist1912403825
  3. Calvin Miller, PA-CPhysician Assistant1740242403
  4. Siri Patel, M.DPediatrics Physician1427475649

Verify Cassandra Ann Madigan 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 95038442    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. Sharp Rees-Stealy Medical Group IncSan Diego, CA

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

Cassandra Ann Madigan among 8,223 nurse practitioner records in California

Cassandra Ann Madigan, DNP, FNP-C is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2026, is newer than 97% of them.

  • NPI issued2026 · 97% of these records are older, 0% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2025 · median 2017 among the 3,425 with a school on file
  • Record last updated2026 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in California

There are 8,223 nurse practitioner records in California.

All 8,223 in California → Every provider in San Diego → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Ann Marie Berger-Finley, N.P.San Diego, CA 921231134256639
  2. Diane Brooks, N.P.San Diego, CA 921231669566477
  3. Dana Connolly, NP, PHDSan Diego, CA 921231669684809
  4. Barbara Goergen, N.P.San Diego, CA 921231720150857
  5. Michelle Headley, N.P.San Diego, CA 921231811029937
  6. Elizabeth Luke, N.P.San Diego, CA 921231043392897
  7. Robert Mihalik, NP, PA-CSan Diego, CA 921231346376555
  8. Kate O'Flaherty-Keese, P.N.P.San Diego, CA 921231144417726

Common questions

What is Cassandra Ann Madigan, DNP, FNP-C's NPI number?

Cassandra Ann Madigan, DNP, FNP-C's National Provider Identifier (NPI) is 1679425524, issued on Feb 12, 2026. An NPI identifies a provider in billing; it is not a license.

Where is Cassandra Ann Madigan, DNP, FNP-C located?

The NPPES record lists a practice address at 8975 Balboa Ave, San Diego, CA, 92123. Phone: (858) 499-2703. Providers update this record themselves, so call before visiting.

How can I verify Cassandra Ann Madigan, DNP, FNP-C's license?

NPPES lists California license number 95038442, 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.