Jonathan B. Blair, MD
Emergency Medicine Physician · Orange, CA
Jonathan B. Blair, MD is an emergency medicine physician with a practice address in Orange, California, and NPI 1891727954, issued on Jul 7, 2006. Check the license (California G27493, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jonathan B. Blair
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G27493 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 West Stewart Drive, Orange, CA 92868
- Phone
- (714) 633-9111
- Enumerated
- Jul 7, 2006
- Record last updated
- Apr 30, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 00G274930 CA
- Entity
- Type 1 · individual
Also registered at 1100 West Stewart Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Geoffrey Green, PAMedical Physician Assistant1306878533
- Nicola Lowrey, PAMedical Physician Assistant1760419428
- William Murphy, MDEmergency Medicine Physician1215969449
Verify Jonathan B. Blair in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G27493Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average emergency medicine physician in 2024
22 Medicare Part D claims, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
179 emergency medicine physician records list a practice address in Orange
They are 179 of the 13,245 NPPES records with a practice address in Orange, and 7,751 emergency medicine physician records in California.
All 179 in Orange → All 7,751 in California → Every provider in Orange →
Other emergency medicine physician records in California
- Cooper Aakhus, MDStanford, CA1194351007
- Pyra Aarden, MDMartinez, CA1417058199
- Neal Aaron, D.O.Encinitas, CA1114283520
- Eric AaserudeWalnut Creek, CA1811491194
- Nader Abas, MDBarstow, CA1346288305
- Michael Abbo, MDNovato, CA1205819042
- Daniel Abbott, MDFullerton, CA1518907864
- Paul-Andre Abboud, M.D.Oakland, CA1710065503
- Mostafa Abdel-Hamid, MDStanford, CA1457918740
- Ashraf Abdel-KerimChino, CA1396961538
Common questions
What is Jonathan B. Blair, MD's NPI number?
Jonathan B. Blair, MD's National Provider Identifier (NPI) is 1891727954, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan B. Blair, MD located?
The NPPES record lists a practice address at 1100 West Stewart Drive, Orange, CA, 92868. Phone: (714) 633-9111. Providers update this record themselves, so call before visiting.
How can I verify Jonathan B. Blair, MD's license?
NPPES lists California license number G27493, 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 B. Blair, MD prescribe under Medicare Part D?
In 2024, Jonathan B. Blair, MD had 22 Medicare Part D claims; 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.