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Dr. Byron J. Garn, MD

Pediatric Cardiology (Pediatric Cardiology Physician)

1920 E Cambridge Ave
Phoenix, AZ 85006

Who else practices at this address →

Maricopa County includes primary care (13% of residents) and dental (0% of residents) and mental health (4% of residents) shortage areas. About shortage areas

Call (602) 253-6000

At a glance

Medical school
Medical College of Wisconsin (2002)
Years since graduation
24
In the NPI registry since
2007

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 2002Medical school: Medical College of Wisconsin
  • 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Pediatric Cardiology Physician primary
    AZ license 42040 · MI license 4301085419
  • Pediatrics Physician
    MI license 4301085419
  • Student in an Organized Health Care Education/Training Program
    MI license 4301085419

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Pediatric Cardiology per capita by county →

Where they work

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Other Pediatric Cardiology clinicians in Phoenix

Sources

NPI registry (CMS NPPES, November 2026; record last updated November 12, 2010), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1790809168. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.