NPPES file of Aug 9, 2026

Jon Ishii, M.D.

Pediatrics Physician · Tucson, AZ

Jon Ishii, M.D. is a pediatrics physician with a practice address in Tucson, Arizona, and NPI 1558776252, issued on Jun 23, 2014. Check the license (Arizona R74479, 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
1558776252
Name
Jon Ishii
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License number
R74479 AZ
Self-reported in NPPES; status is on the state search
Practice location
1501 N Campbell Ave, Tucson, AZ 85724
Phone
(520) 626-7944
Enumerated
Jun 23, 2014
Record last updated
Jun 23, 2014 (not updated in 12 years: call before relying on the address or phone)
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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8 nearest pediatrics physician records → All 1,309 in Arizona → Look up another NPI →

Also registered at 1501 N Campbell Ave

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

  1. Alexa Aaronson, MDPediatrics Physician1427793652
  2. Mohammed Abbas, MDOrthopaedic Surgery Physician1003437872
  3. Josephine Acuna, M.DEmergency Medicine Physician1710325287
  4. Rodney Adam, MDInfectious Disease Physician1548249485
  5. Matthew Adams, D.O.Infectious Disease Physician1578941720
  6. Elana Addis, M.DObstetrics & Gynecology Physician1730150582

Verify Jon Ishii in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license R74479    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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Industry payments in 2024: $37.02

2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jon Ishii$37.02
  2. Specialty average$842.05

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Jon Ishii among 1,309 pediatrics physician records in Arizona

Jon Ishii, M.D. is one of 1,309 pediatrics physician records with a practice address in Arizona. 41% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 71% of them.

  • NPI issued2014 · 71% of these records are older, 26% newer
  • In a Medicare fileYes · 41% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2014 · 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 208000000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

292 pediatrics physician records list a practice address in Tucson

They are 292 of the 18,788 NPPES records with a practice address in Tucson, and 1,309 pediatrics physician records in Arizona.

All 1,309 in Arizona → Every provider in Tucson → Pediatrics Physician nationwide →

The 8 pediatrics physician records with the nearest ZIP codes

  1. Nicole Abdy, M.D.Tucson, AZ 857241669670634
  2. Thomas Ball, MDTucson, AZ 857241386616100
  3. Leslie Barton, LCSWTucson, AZ 857241629041124
  4. Marcia Chan, MDTucson, AZ 857241710135363
  5. Rachel Cramton, M.D.Tucson, AZ 857241932326758
  6. Helene Felman, MDTucson, AZ 857241497912299
  7. Rebecca Fung, M.D.Tucson, AZ 857241912175944
  8. Kimberly Gerhart, M.D., FAAPTucson, AZ 857241427166826

Common questions

What is Jon Ishii, M.D.'s NPI number?

Jon Ishii, M.D.'s National Provider Identifier (NPI) is 1558776252, issued on Jun 23, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Jon Ishii, M.D. located?

The NPPES record lists a practice address at 1501 N Campbell Ave, Tucson, AZ, 85724. Phone: (520) 626-7944. Providers update this record themselves, so call before visiting.

How can I verify Jon Ishii, M.D.'s license?

NPPES lists Arizona license number R74479, 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.