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Dr. Matthew Decker

Pediatric Hematology & Oncology (Pediatric Hematology & Oncology Physician)

At a glance

Years since graduation
6
In the NPI registry since
2020

Licensed in California since 2022, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

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. What an NPI is

Education and training

  • 2020Medical school: Columbia University College of Physicians and Surgeons
  • 2020Registered with an NPI (national billing number; not a license date)

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 Hematology & Oncology Physician primary
    CA license A178250 (first issued 2022; current)

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

Map: Pediatric Hematology & Oncology per capita by county →

Other Pediatric Hematology & Oncology clinicians in San Francisco

Sources

NPI registry (CMS NPPES, November 2026; record last updated June 4, 2026), 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 Information is self-reported or billed data and may be out of date; call before visiting.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 1235766593. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.