Skip to main content
Mark Sienko, MD, Oncology, Sequim, WA, Olympic Medical Center

MarkEdwardSienkoMD

Oncology Sequim, WA

Physician

Dr. Sienko 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. Sienko's full profile

Already have an account?

Education & Training

  • University of Texas Southwestern Medical Center
    University of Texas Southwestern Medical CenterFellowship, Hematology and Medical Oncology, 2002 - 2005
  • University of Texas Southwestern Medical Center/St Paul Medical Center
    University of Texas Southwestern Medical Center/St Paul Medical CenterResidency, Internal Medicine, 1989 - 1992
  • University of Illinois College of Medicine
    University of Illinois College of MedicineClass of 1989

Certifications & Licensure

  • WA State Medical License
    WA State Medical License 2006 - 2025
  • CO State Medical License
    CO State Medical License 2024 - 2025
  • OR State Medical License
    OR State Medical License 2019 - 2023
  • TX State Medical License
    TX State Medical License 1991 - 2006
  • American Board of Internal Medicine Medical Oncology

Publications & Presentations

PubMed

Hospital Affiliations