J. Brad Diestelhorst MD | PeaceHealth
photo of J. Brad  Diestelhorst MDPeaceHealth employed provider

J. Brad Diestelhorst MD

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

Insurance Accepted

  • Aetna
  • Alaska Medicaid
  • AmeriGroup
  • CIGNA HealthCare
  • Community Health Plan of WA (CHPW)
  • Crime Victims / Labor & Industries
  • First Choice Health Network
  • First Health Network
  • Group Health Cooperative
  • Humana Choice Care
  • Medicare
  • Molina Healthcare
  • Multi Plan
  • Premera HealthPlus-Blue Cross
  • Railroad Medicare
  • Regence Blue Shield
  • Soundpath Health
  • Tri-West ( TRICARE)
  • Uniform Medical
  • United HealthCare Networks
  • WA Medicaid (DSHS)

Board Certification

  • ABIM: Critical Care Medicine
  • ABIM: Pulmonary Disease


  • U of Missouri Columbia School of Medicine
    Degree: MD
  • University of Arizona College of Medicine
    Specialty: Internal Medicine
  • University of Utah School of Medicine
    Specialty: Pulmonary/Critical Care Medicine


  • Internal Medicine
  • Pulmonary Disease
  • Critical Care Medicine

Privileged Facilities

  • PeaceHealth St. Joseph Medical Center
  • PeaceHealth United General Medical Center

Find A Doctor

  • PeaceHealth Medical Group - Whatcom
    PHMG/Pulmonary-Sedro Woolley
    2031C Hospital Drive

    Sedro Woolley, WA 98284-4327
    Fax: 360-856-4603
  • PeaceHealth Medical Group - Whatcom
    Pulmonary Medicine
    2980 Squalicum Parkway, Suite 301

    Bellingham, WA 98225-1906
    Fax: 360-788-6114
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