Skip to main content
William Costello, MD, Internal Medicine, Santa Rosa, CA

William K. Costello MD


Physician

Join to View Full Profile
  • 401 Bicentennial WaySanta Rosa, CA 95403

  • Phone+1 707-571-4000

Are you Dr. Costello?

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

  • Gain access to free telehealth tools, such as our "call shielding" and one-way patient texting.
  • Connect with colleagues in the same hospital or clinic.
  • Read the latest clinical news, personalized to your specialty.

Summary

  • Dr. William Costello, MD is an internist in Santa Rosa, California. He is currently licensed to practice medicine in California.

Education & Training

  • Kaiser Permanente Northern California (Santa Clara)
    Kaiser Permanente Northern California (Santa Clara)Residency, Internal Medicine, 1976 - 1979
  • Georgetown University School of Medicine
    Georgetown University School of Medicine

Certifications & Licensure

  • CA State Medical License
    CA State Medical License 1977 - 2026