Skip to main content

Are you Dr. On?

Join over one million U.S. Physicians, Nurse Practitioners and PAs, already on Doximity.

  • Connect with colleagues in the same hospital or clinic
    You already have 60 invites waiting!
  • Search all U.S. specialist profiles and refer a patient
  • Read the latest clinical news and earn CME/CEU credits

Claim this profile

Not you? Find your profile

Summary

  • Dr. Thomas On, MD is a board certified anesthesiologist in Phoenix, Arizona. He is currently licensed to practice medicine in Arizona, California, and Michigan. He is affiliated with St. Joseph's Hospital and Medical Center, Banner - University Medical Center Phoenix, and Phoenix Children's.

Education & Training

  • University of Michigan Health System
    University of Michigan Health SystemResidency, Anesthesiology, 1990 - 1993
  • West Suburban Medical Center
    West Suburban Medical CenterInternship, Transitional Year, 1989 - 1990
  • Loyola University Chicago Stritch School of Medicine
    Loyola University Chicago Stritch School of MedicineClass of 1989

Certifications & Licensure

  • CA State Medical License
    CA State Medical License 1993 - Present
  • AZ State Medical License
    AZ State Medical License 1993 - 2026
  • MI State Medical License
    MI State Medical License 1991 - 1995
  • American Board of Anesthesiology Anesthesiology

Hospital Affiliations