Michael I. McNellis MD | PeaceHealth
photo of Michael I. McNellis MDPeaceHealth employed provider

Michael I. McNellis MD

  • Internal Medicine
  • Pulmonary Disease
  • Critical Care Medicine
  • PeaceHealth Medical Group Provider

Michael I. McNellis, MD, received his medical degree from the National University of Ireland. He then went on to complete his residency in Internal Medicine at Providence/St. Vincent Medical Center in Portland, Oregon. After completion of his residency, Dr. McNellis was selected to be Chief Medical Resident of Internal Medicine at Providence/St. Vincent Medical Center. He completed his fellowships in both Pulmonary and Critical Care Medicine at the University of California Irvine Medical Center and Long Beach Veterans Administration Hospital. He is board certified in Internal Medicine as well as Pulmonary and Critical Care Medicine. Dr. McNellis joined PeaceHealth Medical Group in 1997.

Dr. McNellis has worked on numerous research projects in areas involving mechanical ventilation, the adult respiratory distress syndrome, sleep apnea and hypothermia.

In his spare time, he enjoys hiking, camping, skiing, and developing summer programs for the Boy Scouts of America.

Insurance Accepted

  • Aetna
  • Care Oregon
  • Cigna Healthcare
  • Community Health Plan of WA (CHPW)
  • Coventry/First Health Network
  • First Choice Health Network
  • Humana Health Plan
  • Kaiser OR
  • Labor And Industries
  • Medi-cal (California Medicaid)
  • Medicare
  • Moda Health (ODS)
  • Molina
  • MultiPlan/PHCS
  • Oregon Medicaid (DMAP)
  • Pacific Source
  • Premera HealthPlus-Blue Cross
  • Providence
  • Railroad Medicare
  • Regence Blue Shield
  • Tricare
  • United HealthCare Networks
  • WA Medicaid (DSHS)

Board Certification

  • ABIM: Critical Care Medicine
  • ABIM: Pulmonary Disease


  • National University of Ireland
    Degree: MD
  • Providence St. Vincents Medical Center
    Specialty: Internal Medicine
  • University of California Irvine Medical Center
    Specialty: Pulmonary/Critical Care Medicine


  • Internal Medicine
  • Pulmonary Disease
  • Critical Care Medicine

Privileged Facilities

  • PeaceHealth St. John Medical Center
  • PeaceHealth Medical Group - Lower Columbia
    St. John - Specialty Medicine
    1615 Delaware Street
    Longview, WA 98632-2367
    Fax: 360-414-2739
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