Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Español Near me My list Help
US Patient GuideUSA
Surprise me
Medical Oncology

Hamza Hassan, MD

Sees patients in Buffalo, NY · New York

Summary

Hamza Hassan, MD (Medical Oncology) is enrolled with Medicare at 1 practice location in Buffalo, NY. NPI 1700300837. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(716) 845‑2300 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Hamza Hassan, 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

1Practice location
Medical OncologyPrimary specialty
YesAccepts Medicare assignment
12Years since medical school (graduated 2014)
MaleGender (as listed)
Roswell Park Cancer InstituteGroup practice

Quick answers

Where does Hamza Hassan see patients?
Medicare's clinician data lists 1 practice location in Buffalo, NY. Call before your visit to confirm the address.
What is Hamza Hassan's specialty?
Medicare lists Medical Oncology as the primary specialty.
Does Hamza Hassan accept Medicare assignment?
Yes. Medicare's clinician data says Hamza Hassan 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 Hamza Hassan?
(716) 845-2300, as listed in official Medicare / NPI Registry data.
What is Hamza Hassan's NPI number?
1700300837. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Hamza Hassan is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • Roswell Park Cancer Institute488 clinicians in the group

Specialties

Find other Medical Oncology doctors in New York →

Other oncologists in Buffalo

Clinicians with the same Medicare primary specialty in Buffalo, NY — not a recommendation.

All oncologists in Buffalo →

Clinician information

CredentialMD
Graduation year2014
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1700300837
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians