NPPES file of Aug 9, 2026

John J. Kresl, MD, PH.D

Radiation Oncology Physician · Phoenix, AZ

John J. Kresl, MD, PH.D is a radiation oncology physician with a practice address in Phoenix, Arizona, and NPI 1366418675, issued on Feb 27, 2006. Check the license (Arizona 25703, 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
1366418675
Name
John J. Kresl
Credential
MD, PH.D
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
25703 AZ
Self-reported in NPPES; status is on the state search
Practice location
4611 E. Shea Blvd, Phoenix, AZ 85028
Phone
(602) 441-3845
Enumerated
Feb 27, 2006
Record last updated
Apr 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(602) 464-9769
Medicare enrollment
Enrolled (PECOS I20040406001328); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1993
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 J. Kresl in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 25703
    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% more Medicare Part D claims than the average radiation oncology physician in 2024

141 Medicare Part D claims for 68 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.

  1. John Kresl141
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl41 claims
  2. Bicalutamide31 claims
  3. Ciprofloxacin Hcl13 claims
  4. Oxybutynin Chloride Er13 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.

Industry payments in 2024: $53,989.85

55 payments; by number, the most common kind was food and beverage; the largest payer was Carbofix Spine Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Kresl$53,990
  2. Specialty average$1,898

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

Bills Medicare through 2 group practices

  1. Arizona Digestive Health PCPhoenix, AZ
  2. Radiation Oncologists OF Central ArizonaPhoenix, AZ

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

John J. Kresl among 156 radiation oncology physician records in Arizona

John J. Kresl, MD, PH.D is one of 156 radiation oncology physician records with a practice address in Arizona. 84% 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 15% of them.

  • NPI issued2006 · 15% of these records are older, 51% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated1993 · median 2003 among the 115 with a school on file
  • Record last updated2021 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Arizona

There are 156 radiation oncology physician records in Arizona.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Abhilash Nambiar, M.D.Phoenix, AZ 850281013126440
  2. Lauren Stegman, MD, PH.DPhoenix, AZ 850281730232448
  3. Thomas Canty, MDPhoenix, AZ 850271275509846
  4. Coral Quiet, MDPhoenix, AZ 850271750345401
  5. Devin Sloan, MDPhoenix, AZ 850271932319878
  6. John Dover, MDPhoenix, AZ 850321346235405
  7. Winlove Suasin, MDPhoenix, AZ 850241639281942
  8. Gerald Lucas, MDPhoenix, AZ 850161235193459

Common questions

What is John J. Kresl, MD, PH.D's NPI number?

John J. Kresl, MD, PH.D's National Provider Identifier (NPI) is 1366418675, issued on Feb 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John J. Kresl, MD, PH.D located?

The NPPES record lists a practice address at 4611 E. Shea Blvd, Phoenix, AZ, 85028. Phone: (602) 441-3845. Providers update this record themselves, so call before visiting.

How can I verify John J. Kresl, MD, PH.D's license?

NPPES lists Arizona license number 25703, 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 J. Kresl, MD, PH.D prescribe under Medicare Part D?

In 2024, John J. Kresl, MD, PH.D had 141 Medicare Part D claims for 68 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.