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Dr. Joseph Izzo, MD

Internal Medicine (Internal Medicine Physician)

At a glance

In the NPI registry since
2006

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

  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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

  • Internal Medicine Physician primary
    NY license 137089

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

Map: Internal Medicine per capita by county →

Medicare prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Entresto (sacubitril/valsartan)
Other prescribers in Buffalo, NY
34
Farxiga (dapagliflozin propanediol)
Other prescribers in Buffalo, NY
11

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

Industry-funded research

Named as a principal investigator on 6 industry-funded studies in 2025, from 5 companies. The companies reported $262,438 in research payments for these studies, mostly to the institutions running them.

  • A Phase IIb Two cohort Randomised Placebo controlled Double blind Multicentre Dose ranging Study of AZD5462 in Stable Patients with Chronic Heart Failure
    AstraZeneca UK Limited
  • Dapagliflozin in Acute Decompensated Heart Failure
    AstraZeneca Pharmaceuticals LP
  • A Pivotal Phase 3 Randomized, Placebo-controlled Clinical Study to Evaluate the Efficacy and Safety of the sGC Stimulator Vericiguat,MK-1242 in Adults With Chronic Heart Failure With Reduced Ejection Fraction
    Merck Sharp & Dohme LLC
  • Zilebesiran as Add-on Therapy in Patients With High Cardiovascular Risk and Hypertension Not Adequately Controlled by Standard of Care Antihypertensive Medications (KARDIA-3)
    Alnylam Pharmaceuticals Inc.
  • This is a randomised double blind placebo controlled multi center sequential phase 2b and Phase 3 study to evaluate the efficacy and safety of AZD4831 administered for up to 48 Weeks in participants with heart failure…
    AstraZeneca Pharmaceuticals LP
  • Study name not reported
    Organon Llc

From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.

Other Internal Medicine clinicians in Buffalo

Sources

NPI registry (CMS NPPES, November 2026; record last updated November 22, 2011), 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 1750481065. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.