John J Kresl, MD, PH.D

Radiation Oncology Radiology

Radiology

John J Kresl is a Radiation Oncology Radiology specialist based in Phoenix, AZ with over 33 years of clinical experience. Offers virtual telehealth visits.

(602) 441-3845Phoenix, AZ
Telehealth Available
NPI Active per CMS — Q2 2026

John J Kresl, MD, PH.D practices as part of a group radiation oncology radiology specialist practice in Phoenix, AZ. Trained at Northwestern University Feinberg Medical School (class of 1993), he has been practicing for over 33 years. Among his Medicare patients, common conditions include high cholesterol, hypertension, and cancer (per CMS data).

1 of 39 Radiology providers in AZSee all Radiology in Phoenix33+ years experienceNPI since 2006

Older · 1860dNPPES updated 2021-04-21 · verify NPI on CMS · Verify license at Arizona Medical Board

Contact & Location

Practice Location

4611 E. Shea Blvd Ste. 120, Phoenix, AZ 85028-4254

Fax: (602) 464-9769
Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Cancer.

High Cholesterol
75%

Elevated cholesterol or triglycerides that increase heart disease risk

Hypertension
73%

High blood pressure — a leading risk factor for heart disease and stroke

Cancer
73%

Diseases involving abnormal cell growth with potential to spread to other body parts

Arthritis
39%

Joint inflammation causing pain, swelling, and stiffness

Ischemic Heart Disease
30%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

Chronic Kidney Disease
21%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 1993

    Northwestern University Feinberg Medical School

  2. Board certified · Apr 20, 2021

    Self-reported via NPPES

  3. 33 years in practice

    Senior practitioner

RadiologyRadiation Oncology in PhoenixAllopathic & Osteopathic Physicians

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

Taxonomy: 2085R0001X

Education & Training

Northwestern University Feinberg Medical School (Class of 1993)

Practice Footprint

Mailing address

4611 E. Shea Blvd Ste 120, Phoenix, AZ 85028-4254

Differs from practice location

Virtual Radiation Oncology Care With John J Kresl

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with John J Kresl for cholesterol management, blood pressure monitoring, follow-up consultations — no travel to Phoenix required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about John J Kresl

Dr. Kresl is listed as active in the NPI registry with telehealth listed in Phoenix, AZ. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (602) 441-3845.

Verified across 3 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Physician Comparator. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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