NPPES file of Aug 9, 2026

John Quentin Harris, D.O.

Family Medicine Physician · Tucson, AZ

John Quentin Harris, D.O. is a family medicine physician with a practice address in Tucson, Arizona, and NPI 1740257757, issued on Mar 8, 2006. Check the license (Arizona AZ0823, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740257757
Name
John Quentin Harris
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
AZ0823 AZ
Self-reported in NPPES; status is on the state search
Practice location
3535 S 12TH Ave, Tucson, AZ 85713
Phone
(520) 622-8384
Enumerated
Mar 8, 2006
Record last updated
Jun 22, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(520) 622-0569
Medicaid ID
217390 AZ
Medicare enrollment
Enrolled (PECOS I20051025000249); accepts Medicare assignment
Medical or professional school
Des Moines University Of Osteopathic Medicine And Health Sciences, 1968
Telehealth
Offers telehealth (CMS)
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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Verify John Quentin Harris in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license AZ0823
    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

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5% fewer Medicare Part D claims than the average family medicine physician in 2024

3,372 Medicare Part D claims for 236 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 272 claims were for opioids.

  1. John Harris3,372
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium169 claims
  2. Lisinopril161 claims
  3. Hydrocodone-Acetaminophen143 claims
  4. Amlodipine Besylate140 claims
  5. Metformin Hcl107 claims
  6. Metoprolol Succinate99 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.

John Quentin Harris among 3,119 family medicine physician records in Arizona

John Quentin Harris, D.O. is one of 3,119 family medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1968 · median 2006 among the 1,775 with a school on file
  • Record last updated2015 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

554 family medicine physician records list a practice address in Tucson

They are 554 of the 18,788 NPPES records with a practice address in Tucson, and 3,119 family medicine physician records in Arizona.

The 8 family medicine physician records with the nearest ZIP codes

  1. Tamsen Bassford, MDTucson, AZ 857131265404933
  2. Holly Beach, M.D.Tucson, AZ 857131689879751
  3. Melanie Crowshoe, MDTucson, AZ 857131417920752
  4. Lane Johnson, MDTucson, AZ 857131578538146
  5. Jerome Koleski, MDTucson, AZ 857131871763979
  6. Karyn Kolman, MDTucson, AZ 857131427098516
  7. Terri Kresha, M.D.Tucson, AZ 857131962600692
  8. Donald Kwasman, DOTucson, AZ 857131528079126

Common questions

What is John Quentin Harris, D.O.'s NPI number?

John Quentin Harris, D.O.'s National Provider Identifier (NPI) is 1740257757, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Quentin Harris, D.O. located?

The NPPES record lists a practice address at 3535 S 12TH Ave, Tucson, AZ, 85713. Phone: (520) 622-8384. Providers update this record themselves, so call before visiting.

How can I verify John Quentin Harris, D.O.'s license?

NPPES lists Arizona license number AZ0823, 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.

How much does John Quentin Harris, D.O. prescribe under Medicare Part D?

In 2024, John Quentin Harris, D.O. had 3,372 Medicare Part D claims for 236 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.