NPPES file of Aug 9, 2026

Sean Oregan, M.D.

Internal Medicine Physician · Mesa, AZ

Sean Oregan, M.D. is an internal medicine physician with a practice address in Mesa, Arizona, and NPI 1164486460, issued on Apr 13, 2006. Check the license (Arizona 19829, as entered in NPPES) on the Arizona Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164486460
Name
Sean Oregan
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
19829 AZ
Self-reported in NPPES; status is on the state search
Practice location
6859 E Rembrandt Ave, Mesa, AZ 85212
Phone
(480) 632-1577
Enumerated
Apr 13, 2006
Record last updated
Jun 7, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(480) 632-1574
Medicaid ID
411661 AZ
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 6859 E Rembrandt Ave

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

  1. Elena CarrettaFamily Nurse Practitioner1326412388
  2. Britany Kormos, NP-CNurse Practitioner1558617407
  3. Evelyn RuizBehavior Analyst1053261909
  4. Claudia Ruiz-BrandenburgBehavior Analyst1235089244
  5. Bonita Smith, N.P.-C.Nurse Practitioner1851691612
  6. Zelalem Yilma, M.D.Cardiovascular Disease Physician1164421251

Verify Sean Oregan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 19829
    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 Arizona 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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157 internal medicine physician records list a practice address in Mesa

They are 157 of the 9,151 NPPES records with a practice address in Mesa, and 2,853 internal medicine physician records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other internal medicine physician records in Arizona

  1. Daniel Aaronson, MDTucson, AZ1134865355
  2. Constantia Abarikwu, MDPhoenix, AZ1497832620
  3. Jaber Abawi, MDPayson, AZ1629038542
  4. Demsas Abay, MDPeoria, AZ1720312390
  5. Firas Abbas, M.D. M.P.H.Mesa, AZ1336481407
  6. Hassan Abbas, D.O.Mesa, AZ1477294775
  7. Jalal Abbas, M.D.Sun City West, AZ1205895034
  8. Tayeb Abbas, MDSun City West, AZ1093406795
  9. Hamed Abbaszadegan, MDPhoenix, AZ1407083579
  10. Kristopher Abbate, MDTucson, AZ1184112401

Common questions

What is Sean Oregan, M.D.'s NPI number?

Sean Oregan, M.D.'s National Provider Identifier (NPI) is 1164486460, issued on Apr 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sean Oregan, M.D. located?

The NPPES record lists a practice address at 6859 E Rembrandt Ave, Mesa, AZ, 85212. Phone: (480) 632-1577. Providers update this record themselves, so call before visiting.

How can I verify Sean Oregan, M.D.'s license?

NPPES lists Arizona license number 19829, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.