NPPES file of Aug 9, 2026

Dean D. Aubin, M.D.

Emergency Medicine Physician · Orange, CA

Dean D. Aubin, M.D. is an emergency medicine physician with a practice address in Orange, California, and NPI 1932391869, issued on Aug 14, 2007. Check the license 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
1932391869
Name
Dean D. Aubin
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
MD.202033 LA
Self-reported in NPPES; status is on the state search
Practice location
2601 E Chapman Ave, Orange, CA 92869
Phone
(504) 897-8250
Enumerated
Aug 14, 2007
Record last updated
Apr 18, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicaid ID
1-50039-9 LA
Medicare enrollment
Enrolled (PECOS I20161110000393); may accept Medicare assignment
Medical or professional school
Texas Tech University Health Science Center School Of Medicine, 2006
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 2601 E Chapman Ave

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

  1. James Chang, M.D.Anesthesiology Physician1700867298
  2. Jeffry Chen, M.D.Anesthesiology Physician1578791620
  3. Vadim Chudnovsky, M.D.Diagnostic Radiology Physician1922049394
  4. Brian Coombe, DOEmergency Medicine Physician1023257755
  5. Usha Desai, RNFARegistered Nurse First Assistant1144357914
  6. Candice Dreyer, RDRegistered Dietitian1649313255

Verify Dean D. Aubin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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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27% more Medicare Part D claims than the average emergency medicine physician in 2024

287 Medicare Part D claims for 157 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Dean Aubin287
  2. Specialty average226

Most prescribed

  1. Prednisone49 claims
  2. Azithromycin28 claims
  3. Fluticasone Propionate24 claims
  4. Amoxicillin16 claims
  5. Paxlovid15 claims
  6. Naproxen14 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 2 group practices

  1. Frisco Emergency Medicine Associates PACoppell, TX
  2. Legacy Urgent Care PAFrisco, TX

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

Dean D. Aubin among 7,751 emergency medicine physician records in California

Dean D. Aubin, M.D. 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 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 50% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2006 · median 2011 among the 4,560 with a school on file
  • Record last updated2014 · 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).

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.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Brian Coombe, DOOrange, CA 928691023257755
  2. Mark Lee, MDOrange, CA 928691588696819
  3. Anita Wang, MDOrange, CA 928691336189794
  4. Daniel Artiga, MDOrange, CA 928681801537964
  5. Adam Bouldin, MDOrange, CA 928681518609486
  6. Christina Cantwell, MDOrange, CA 928681528717840
  7. Austin Dejong, DOOrange, CA 928681992407886
  8. Thao Do, D.O.Placentia, CA 928701073861712

Common questions

What is Dean D. Aubin, M.D.'s NPI number?

Dean D. Aubin, M.D.'s National Provider Identifier (NPI) is 1932391869, issued on Aug 14, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Dean D. Aubin, M.D. located?

The NPPES record lists a practice address at 2601 E Chapman Ave, Orange, CA, 92869. Phone: (504) 897-8250. Providers update this record themselves, so call before visiting.

How can I verify Dean D. Aubin, M.D.'s license?

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 Dean D. Aubin, M.D. prescribe under Medicare Part D?

In 2024, Dean D. Aubin, M.D. had 287 Medicare Part D claims for 157 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.