NPPES file of Aug 9, 2026

Karen P. Brandeis, F.N.P.

Family Nurse Practitioner · Santa Ana, CA

Karen P. Brandeis, F.N.P. is a family nurse practitioner with a practice address in Santa Ana, California, and NPI 1336426840, issued on Nov 11, 2011. Check the license (California 21594, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336426840
Name
Karen P. Brandeis
Credential
F.N.P.
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
21594 CA
518580 CA
Self-reported in NPPES; status is on the state search
Practice location
800 N Main St, Santa Ana, CA 92701
Phone
(657) 282-6355
Enumerated
Nov 11, 2011
Record last updated
Jan 17, 2024
Medicare enrollment
Enrolled (PECOS I20190628001217); 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 800 N Main St

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

  1. Refat AhsanStudent in an Organized Health Care Education/Training Program1790623676
  2. Lynette Anderson, DOFamily Medicine Physician1164674503
  3. Joanne Azer, D.O.Family Medicine Physician1275822850
  4. Jacob Beene, MDStudent in an Organized Health Care Education/Training Program1477491363
  5. Karen Bui, MDStudent in an Organized Health Care Education/Training Program1124604954
  6. Lisa Camino, LCSWSocial Worker1801077706

Verify Karen P. Brandeis 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 21594
    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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80% fewer Medicare Part D claims than the average family nurse practitioner in 2024

264 Medicare Part D claims for 113 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Karen Brandeis264
  2. Specialty average1,305

Most prescribed

  1. Fluticasone Propionate37 claims
  2. Gabapentin16 claims
  3. Baclofen12 claims
  4. Diclofenac Sodium12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. University OF California IrvineSanta Ana, CA

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

Karen P. Brandeis among 16,966 family nurse practitioner records in California

Karen P. Brandeis, F.N.P. is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 19% of them.

  • NPI issued2011 · 19% of these records are older, 79% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2011 · median 2019 among the 6,793 with a school on file
  • Record last updated2024 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

113 family nurse practitioner records list a practice address in Santa Ana

They are 113 of the 8,904 NPPES records with a practice address in Santa Ana, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Paloma Camacho, FNPSanta Ana, CA 927011952837759
  2. Teresa Charlesworth, RNC, MSN, FNPSanta Ana, CA 927011750444089
  3. Liza Enriquez, N.PSanta Ana, CA 927011093137499
  4. Michelle GullySanta Ana, CA 927011801557947
  5. Rose HernandezSanta Ana, CA 927011225794571
  6. Louise Jones, DNP, APRN, FNP, CCRNSanta Ana, CA 927011013577550
  7. Minh Tam Luong, FNPSanta Ana, CA 927011659798163
  8. Sonia Sedano, FNP-CSanta Ana, CA 927011003328709

Common questions

What is Karen P. Brandeis, F.N.P.'s NPI number?

Karen P. Brandeis, F.N.P.'s National Provider Identifier (NPI) is 1336426840, issued on Nov 11, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Karen P. Brandeis, F.N.P. located?

The NPPES record lists a practice address at 800 N Main St, Santa Ana, CA, 92701. Phone: (657) 282-6355. Providers update this record themselves, so call before visiting.

How can I verify Karen P. Brandeis, F.N.P.'s license?

NPPES lists California license number 21594, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Karen P. Brandeis, F.N.P. prescribe under Medicare Part D?

In 2024, Karen P. Brandeis, F.N.P. had 264 Medicare Part D claims for 113 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions 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.

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.