Headshot photo of Tonja C. Dirkx, M.D.

Not currently accepting patients

No ratings to display.

Tonja C. Dirkx, M.D.

Not currently accepting patients

  • Associate Professor of Medicine, and Director, Portland VA Health Center Renal Clinic
  • Associate Professor of Medicine, Division of Nephrology and Hypertension, School of Medicine


  • Nephrology and Hypertension

About me

Dr. Dirkx joined the Division as a clinician-educator in 2005.  She is the Director of the Outpatient Renal Clinic at the VA Portland Health Care Center.  Her strong interest in medical education led to a six-year tenure as co-director of the Renal Pathophysiology course in the OHSU School of Medicine (SOM); she continues to precept medical students in her VA Renal Clinic.  She has served on the OHSU SOM Admissions committee since 2013.  Her clinical interests include chronic kidney disease and end-stage renal disease; within this, she finds the pathophysiology of the uremic milieu and metabolic bone disease particularly intriguing.

Languages spoken

  • English

Education and training

    • M.D., 1998, University of California, Davis
  • Residency

    • Internal medicine - Oregon Health & Science University, 2001
  • Fellowship

    • Clinical Nephrology - Oregon Health & Science University, 2004
  • Certifications

    • American Board of Internal Medicine - internal medicine

Memberships and associations:

  • American Society of Nephrology
Read faculty profile


Before scheduling your appointment, we recommend you contact your insurance company to verify that the OHSU Health location or provider you plan to visit is included in your network. Your insurance company will also be able to inform you of any copayments, co–insurance, or deductibles that will be your responsibility. If you proceed in scheduling an appointment and your health insurance benefits do not participate with OHSU providers, your out of pocket liability may be higher. Visit the billing and insurance section of our site for more information.