Registry data as of Aug 27, 2026

Brian Cahill, D.D.S.

Dentist · Mesa, AZ

Brian Cahill, D.D.S. is a dentist with a practice address in Mesa, Arizona, and NPI 1558365809, issued on Jun 1, 2005. Check the license (Arizona 5089, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1558365809
Name
Brian Cahill
Credential
D.D.S.
Primary taxonomy
Dentist 122300000X
License number
5089 AZ
Self-reported in NPPES; status is on the state search
Practice location
4540 E Baseline RD, Mesa, AZ 85206
Phone
(480) 632-6222
Enumerated
Jun 1, 2005
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.
Download card Updates feed

Also registered at 4540 E Baseline RD

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

  1. Gary Auxier, M.D.Pediatrics Physician1386613297
  2. Lynn Bevans, DNP, CPNP-PCPediatric Nurse Practitioner1386785095
  3. Lafe Carroll, D.O.Pediatrics Physician1932178290
  4. Blaine Couser, DDS, MSOrthodontics and Dentofacial Orthopedics Dentistry1417077918
  5. Craig Defries, D.C.Chiropractor1912202904
  6. R Farr, DDSGeneral Practice Dentistry1770547838

Verify Brian Cahill in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 5089
    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
Find 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.

49% fewer Medicare Part D claims than the average dentist in 2024

46 Medicare Part D claims for 25 beneficiaries, against an average of 90 among the 51,502 providers of this specialty who prescribed in Part D.

  1. Brian Cahill46
  2. Specialty average90

Most prescribed

  1. Amoxicillin19 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.

178 dentist records list a Mesa practice address

They are 178 of the 9,151 NPPES records with a Mesa practice address, and 1,974 dentist records in Arizona.

Other dentist records in Arizona

  1. Osama AbadiTucson, AZ1679903645
  2. Mouhammed Abdulrazzak, D.D.S.Scottsdale, AZ1518164383
  3. Payam Abedi, D.D.S.Scottsdale, AZ1376524942
  4. Aryan Abedini, DMDAvondale, AZ1841776150
  5. Bianca Aboubakare, DMDGilbert, AZ1447904834
  6. Melvin AbrahamTucson, AZ1396467791
  7. Leina Abraham-Lalani, DDSGilbert, AZ1881608792
  8. Aram Abramian, DDSTucson, AZ1538386792
  9. Jefrey Abramowitz, DDSFlagstaff, AZ1326004441
  10. Chad Achatz, DMDScottsdale, AZ1699220863

Common questions

What is Brian Cahill, D.D.S.'s NPI number?

Brian Cahill, D.D.S.'s National Provider Identifier (NPI) is 1558365809, issued on Jun 1, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Brian Cahill, D.D.S. located?

The NPPES record lists a practice address at 4540 E Baseline RD, Mesa, AZ, 85206. Phone: (480) 632-6222. Providers update this record themselves, so call before visiting.

How can I verify Brian Cahill, D.D.S.'s license?

NPPES lists Arizona license number 5089, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Brian Cahill, D.D.S. prescribe under Medicare Part D?

In 2024, Brian Cahill, D.D.S. had 46 Medicare Part D claims for 25 beneficiaries; the average among dentist prescribers was 90. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.