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Cardiovascular Disease (Cardiology)

Steven Lester, MD

Works at hospitals in Phoenix, AZ · Arizona

Summary

Steven Lester, MD (Cardiovascular Disease (Cardiology)) is listed by Medicare at 1 hospital in Phoenix, AZ. NPI 1790769966. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Steven Lester, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Cardiovascular Disease (Cardiology)Primary specialty
YesAccepts Medicare assignment
35Years since medical school (graduated 1991)
University Of Toronto, Faculty Of MedicineMedical school
MaleGender (as listed)
Mayo Clinic ArizonaGroup practice

Quick answers

Which hospitals does Steven Lester work at?
Medicare's official clinician data lists Steven Lester at 1 hospital: Mayo Clinic Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Steven Lester see patients?
Medicare's clinician data lists 7 practice locations, including Scottsdale, AZ, Glendale, AZ and Phoenix, AZ. Call before your visit to confirm the address.
What is Steven Lester's specialty?
Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
Does Steven Lester accept Medicare assignment?
Yes. Medicare's clinician data says Steven Lester accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Steven Lester?
(480) 301-8000, as listed in official Medicare / NPI Registry data.
What is Steven Lester's NPI number?
1790769966. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Steven Lester works

Medicare's Facility Affiliation Data lists Steven Lester at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Steven Lester is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Steven Lester as a member of this group (CMS data updated 2026-10-02).

  • Mayo Clinic Arizona1,626 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Arizona →

Other cardiologists in Scottsdale

Clinicians with the same Medicare primary specialty in Scottsdale, AZ — not a recommendation.

All cardiologists in Scottsdale →

Clinician information

CredentialMD
Medical schoolUniversity Of Toronto, Faculty Of Medicine
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1790769966
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians