NPPES file of Aug 9, 2026

Gregory Triandafilou, D.C.

Chiropractor · Phoenix, AZ

Gregory Triandafilou, D.C. is a chiropractor with a practice address in Phoenix, Arizona, and NPI 1740294917, issued on Jul 27, 2006. Check the license (Arizona 3801, as entered in NPPES) with the Arizona board that licenses this profession; 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
1740294917
Name
Gregory Triandafilou
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
3801 AZ
Self-reported in NPPES; status is on the state search
Practice location
532 E Maryland Ave, Phoenix, AZ 85012
Phone
(602) 264-6300
Enumerated
Jul 27, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(602) 264-6883
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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Verify Gregory Triandafilou 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 3801
    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.

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Gregory Triandafilou among 1,971 chiropractor records in Arizona

Gregory Triandafilou, D.C. is one of 1,971 chiropractor records with a practice address in Arizona. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 58% newer
  • In a Medicare fileNo · 14% of these records are
  • In the CMS Doctors and Clinicians fileNo · 35% of these records are
  • Record last updated2007 · 76% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

433 chiropractor records list a practice address in Phoenix

They are 433 of the 31,399 NPPES records with a practice address in Phoenix, and 1,971 chiropractor records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 chiropractor records with the nearest ZIP codes

  1. Marc Brodeur, DCPhoenix, AZ 850121841337441
  2. Carmen Brodeur, DCPhoenix, AZ 850121174660773
  3. Craig Curtis, DCPhoenix, AZ 850121407049711
  4. Thomas Hulm, DCPhoenix, AZ 850121083247852
  5. Michael Jacobson, D.C.Phoenix, AZ 850121609966142
  6. David Lewandowski, DCPhoenix, AZ 850121861961690
  7. Alan Lundeen, D.C.Phoenix, AZ 850121518143981
  8. Tammy Dorhout, DC CCSP FIACAPhoenix, AZ 850131568513158

Common questions

What is Gregory Triandafilou, D.C.'s NPI number?

Gregory Triandafilou, D.C.'s National Provider Identifier (NPI) is 1740294917, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Triandafilou, D.C. located?

The NPPES record lists a practice address at 532 E Maryland Ave, Phoenix, AZ, 85012. Phone: (602) 264-6300. Providers update this record themselves, so call before visiting.

How can I verify Gregory Triandafilou, D.C.'s license?

NPPES lists Arizona license number 3801, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity 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. 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.