Skip to main content
Catherine O'Neill, MD, Internal Medicine, Buffalo, NY, KALEIDA Health

CatherineO'NeillMD

Internal Medicine • Buffalo, NY

Associate Clinical Professor of Medicine, SUNY Buffalo

Join to view full profile

Dr. O'Neill is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

  • Connect with other colleagues in the same hospital or clinic
  • Search all U.S. specialist profiles and refer a patient
  • Read the latest clinical news and earn CME/CEU credits

See Dr. O'Neill's full profile

Already have an account?

Education & Training

  • SUNY Upstate Medical University
    SUNY Upstate Medical UniversityClass of 1988

Certifications & Licensure

  • NY State Medical License
    NY State Medical License 1989 - 2025
  • American Board of Internal Medicine Internal Medicine

Hospital Affiliations

Dr. Catherine O'Neill, Dr. Catherine O'Neill, MD, Dr. C O'Neill