NPPES file of Aug 9, 2026

Brett Thomas, DO

Dermatology Physician · Phoenix, AZ

Brett Thomas, DO is a dermatology physician with a practice address in Phoenix, Arizona, and NPI 1548848492, issued on Mar 31, 2021. Check the license (Arizona 011784, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1548848492
Name
Brett Thomas
Credential
DO
Primary taxonomy
Dermatology Physician 207N00000X
License number
011784 AZ
Self-reported in NPPES; status is on the state search
Practice location
4512 N 40TH St, Phoenix, AZ 85018
Phone
(602) 954-7546
Enumerated
Mar 31, 2021
Record last updated
Aug 8, 2025
Medicare enrollment
Enrolled (PECOS I20250825002215); accepts Medicare assignment
Medical or professional school
Kansas City College Of Medicine And Surgery, 2021
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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8 nearest dermatology physician records → All 350 in Arizona → Look up another NPI →

Also registered at 4512 N 40TH St

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

  1. Jeffrey Bosley, MPASMedical Physician Assistant1922073196
  2. Amena Deluca, MDMOHS-Micrographic Surgery Physician1972766921
  3. Kiley GroebnerPhysician Assistant1184346116
  4. Renae Slobodny, PA-CMedical Physician Assistant1528586641

Verify Brett Thomas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 011784    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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Bills Medicare through one group practice

  1. Center For Dermatology PLLCPhoenix, AZ

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

Brett Thomas among 350 dermatology physician records in Arizona

Brett Thomas, DO is one of 350 dermatology physician records with a practice address in Arizona. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 90% of them.

  • NPI issued2021 · 90% of these records are older, 7% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2021 · median 2008 among the 241 with a school on file
  • Record last updated2025 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Arizona

There are 350 dermatology physician records in Arizona.

All 350 in Arizona → Every provider in Phoenix → Dermatology Physician nationwide →

The 8 dermatology physician records with the nearest ZIP codes

  1. Adam Norberg, MDPhoenix, AZ 850181487048583
  2. Christopher Bengson, M.D., M.H.S.Phoenix, AZ 850161063619484
  3. Peter Casper, M.D.Phoenix, AZ 850161538272596
  4. Yi Gao, MDPhoenix, AZ 850201457857336
  5. Ronald Hansen, M.D.Phoenix, AZ 850161770562274
  6. Morgan Mackey, D.O.Phoenix, AZ 850201699087809
  7. Deborah Mendelson, MDPhoenix, AZ 850201508852492
  8. Xuan Nguyen, M.D.Phoenix, AZ 850161093827362

Common questions

What is Brett Thomas, DO's NPI number?

Brett Thomas, DO's National Provider Identifier (NPI) is 1548848492, issued on Mar 31, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Brett Thomas, DO located?

The NPPES record lists a practice address at 4512 N 40TH St, Phoenix, AZ, 85018. Phone: (602) 954-7546. Providers update this record themselves, so call before visiting.

How can I verify Brett Thomas, DO's license?

NPPES lists Arizona license number 011784, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.