NPPES file of Aug 9, 2026

Jonathan R. Birnbaum, MD

Emergency Medicine Physician · Anaheim, CA

Jonathan R. Birnbaum, MD is an emergency medicine physician with a practice address in Anaheim, California, and NPI 1265483176, issued on May 15, 2006. Check the license (California A66598, as entered in NPPES) on the Medical Board of California; 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
1265483176
Name
Jonathan R. Birnbaum
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A66598 CA
Self-reported in NPPES; status is on the state search
Practice location
3033 West Orange Avenue, Anaheim, CA 92804
Phone
(714) 827-3000
Enumerated
May 15, 2006
Record last updated
Jul 13, 2026
Medicaid ID
OOA665980 CA
Medicare enrollment
Enrolled (PECOS I20040803001458); accepts Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 1997
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 3033 West Orange Avenue

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

  1. George Baskevitch, MDEmergency Medicine Physician1215993399
  2. Lisa Josephson, MDEmergency Medicine Physician1154352870
  3. Pradeep KhatiwadaStudent in an Organized Health Care Education/Training Program1699693671
  4. Jennifer Mason, MDEmergency Medicine Physician1396828216
  5. Alan Osgood, MDEmergency Medicine Physician1043277452
  6. Monika ParajuliStudent in an Organized Health Care Education/Training Program1134050917

Verify Jonathan R. Birnbaum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A66598
    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
Open 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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48% fewer Medicare Part D claims than the average emergency medicine physician in 2024

118 Medicare Part D claims for 83 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 13 claims were for opioids.

  1. Jonathan Birnbaum118
  2. Specialty average226

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 2 group practices

  1. Cardinal Emergency Providers Professional CorporationRedding, CA
  2. South Coast Emergency Medical GroupAnaheim, CA

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

Jonathan R. Birnbaum among 7,751 emergency medicine physician records in California

Jonathan R. Birnbaum, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1997 · median 2011 among the 4,560 with a school on file
  • Record last updated2026 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. George Baskevitch, MDAnaheim, CA 928041215993399
  2. Rocky Benoit, MDAnaheim, CA 928041245337609
  3. Teodora Bonuan, MDAnaheim, CA 928041427076207
  4. Ralph Conner, DOAnaheim, CA 928041114941812
  5. Keith Errecart, MDAnaheim, CA 928041134359102
  6. Tasha Fernando, M.D.Anaheim, CA 928041508202144
  7. Claus Hecht, MDAnaheim, CA 928041861459190
  8. Lisa Josephson, MDAnaheim, CA 928041154352870

Common questions

What is Jonathan R. Birnbaum, MD's NPI number?

Jonathan R. Birnbaum, MD's National Provider Identifier (NPI) is 1265483176, issued on May 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan R. Birnbaum, MD located?

The NPPES record lists a practice address at 3033 West Orange Avenue, Anaheim, CA, 92804. Phone: (714) 827-3000. Providers update this record themselves, so call before visiting.

How can I verify Jonathan R. Birnbaum, MD's license?

NPPES lists California license number A66598, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jonathan R. Birnbaum, MD prescribe under Medicare Part D?

In 2024, Jonathan R. Birnbaum, MD had 118 Medicare Part D claims for 83 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.