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Dr. Kenneth S. Poon

Hematology & Oncology (Hematology & Oncology Physician)

  • Medicare participating

At a glance

Years since graduation
16
In the NPI registry since
2010
Medicare patients seen, 2024
12

Licensed in California since 2015, 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

  • 2010Medical school: University of Chicago, Pritzker School of Medicine
  • 2010Registered 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

  • Hematology & Oncology Physician primary
    CA license A139907 (first issued 2015; current) · CO license DR.0077442 (first issued 2026; active)
  • Internal Medicine Physician
    NY license 268932

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

Map: Hematology & Oncology 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.

Medicare patients and services

Medicare patients, 2024
12
Services billed
2,109
Patients’ average age
64

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Lenalidomide341
Acyclovir
Other prescribers in San Leandro, CA
253
Hydroxyurea
Other prescribers in San Leandro, CA
178
Dexamethasone
Other prescribers in San Leandro, CA
168
Pomalyst (pomalidomide)87
Prednisone
Other prescribers in San Leandro, CA
59
Brukinsa (zanubrutinib)57
Calquence (acalabrutinib maleate)55
Entecavir47
Venclexta (venetoclax)40

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Other Hematology & Oncology clinicians in San Leandro

Sources

NPI registry (CMS NPPES, November 2026; record last updated May 1, 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 1366768541. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.