Faculty

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Division of Nephrology and Hypertension Faculty

The Division of Nephrology and Hypertension faculty are involved in a broad range of clinical care, education, and research activities.

Sharon Anderson

Sharon Anderson, M.D.
Dean, OHSU School of Medicine
Professor of Medicine, School of Medicine

Undergraduate: University of Maryland
M.D.: Louisiana State University Medical Center
Residency: Oregon Health & Science University
Fellowship: Beth Israel Hospital (Clinical), Brigham and Women's Hospital (Research)
Academic Interests: The renin angiotensin aldosterone system in CKD

Rupali Avasare

Rupali Avasare, M.D.
Director, Glomerular Disease Program
Assistant Professor, School of Medicine

Undergraduate: Massachusetts Institute of Technology
M.D.: New York University School of Medicine
Residency: Columbia University
Fellowship: Columbia University (Clinical and Glomerulonephritis)
Academic Interests: Glomerulonephritis clinical outcomes

Pavan Chopra

Pavan Chopra, M.D.
Director, Quality and Safety for the OHSU Department of Medicine Ambulatory Practice
Director, OHSU Dialysis Services
Assistant Professor of Medicine, School of Medicine

Undergraduate: University of Illinois Urbana-Champaign
M.D.: Rush University
Residency: Rush University
Fellowship: University of Michigan
Academic interests: Dialysis outcomes and quality improvement

David Cohen

David Cohen, M.D.
Associate Chief of Staff for Research and Development at VA Portland Health Care System
Professor of Medicine, School of Medicine

Undergraduate: Pennsylvania State University
M.D.: Jefferson Medical College of Thomas Jefferson University
Residency: Boston University Medical Center
Fellowship: Brigham and Women’s Hospital (Clinical), HHMI, Division of Genetics, Harvard University (Research)
Academic interests: Genetic factors in systemic water balance, clinical disorders of water and electrolyte balance, and pathophysiology of diabetic nephropathy

Tonja Dirkx

Tonja Dirkx, M.D.
Section Chief, VA Portland Health Care System, Nephrology Section
Medical Director, VA Portland Dialysis Unit
Associate Professor of Medicine, School of Medicine

Undergraduate: Humboldt State University
M.D.: University of California at Davis
Residency: Oregon Health & Science University
Fellowship: Oregon Health & Science University
Academic interests: Dialysis and bone-mineral disease management

David Ellison

David Ellison, M.D.
Director, Oregon Clinical and Translational Research Institute
Associate Vice President for Clinical & Translational Research
Professor of Medicine, School of Medicine

Undergraduate: Stanford University
M.D.: Rush Medical College
Residency: Oregon Health & Science University
Fellowship: Yale University (Clinical), Oregon Health & Science University (Research)
Academic interests: Interactions between diet, genes, and aldosterone in causing and treating high blood pressure, and causes and treatment of diuretic resistance and kidney tubule remodeling

Shannon Fay

Shannon Fay, P.A.-C.
Instructor of Medicine, School of Medicine
Undergraduate: Washington State University
P.A.-C.: Oregon Health & Science University
Academic interests:  Nephrology and hypertension

Susan Gurley

Susan Gurley, M.D., Ph.D.
Division Head, Division of Nephrology and Hypertension
Associate Professor of Medicine, School of Medicine

Undergraduate: University of Mississippi
Ph.D.: University of Mississippi
M.D.: Washington University School of Medicine
Residency: Duke University
Fellowship: Duke University
Academic Interests: Pathologic mechanisms of hypertensive and diabetic kidney disease, sodium homeostasis in blood pressure regulation, and mouse models of diabetic nephropathy

Katie Gustafson, nephrology physician

Katie Gustafson, M.D.
Renal Clinic Director, Portland VA Medical Center
Assistant Professor of Medicine, School of Medicine

Undergraduate: Harvard University
M.D.: Virginia Commonwealth University
Residency: Oregon Health & Science University
Fellowship: Oregon Health & Science University
Academic interests: Chronic kidney disease and geriatric nephrology

Zhongfeng Liu

Zhongfeng Liu, P.A.-C.
Instructor of Medicine, School of Medicine
Undergraduate: Shandong University School of Chinese Traditional Medicine (China)
M.Med.: Shanghai University School of Chinese Traditional Medicine (China)
M.S.: Rocky Mountain College PA Program
Academic interests: Dialysis care, chronic kidney disease and hypertension

Ali Olyaei

Ali Olyaei, Pharm.D.
Professor of Medicine, Division of Nephrology and Hypertension
Undergraduate: Oregon State University
Pharm.D.: University of Kansas
Residency: University of Kansas
Internship: Salem Hospital
Academic interests: Drug dosing in kidney disease and complications of long-term use of immunosuppressive drugs

Kalani Raphael Photo

Kalani Raphael, M.D.
Associate Professor of Medicine, School of Medicine
Undergraduate: Gonzaga University
M.D.: University of Hawai'i John A. Burns School of Medicine
Residency: University of Utah
Fellowship: University of Utah
Academic Interests: Chronic kidney disease, metabolic acidosis, acid-base homeostasis, clinical research, and health disparities

Ju

Justine Ricker, P.A.-C.
Instructor of Medicine, School of Medicine
Undergraduate: University of Central Florida
M.S.: Keiser University
Academic interests: Dialysis care, chronic kidney disease

Robert Rope

Rob Rope, M.D.
Associate Fellowship Program Director, Division of Nephrology and Hypertension
Assistant Professor of Medicine, School of Medicine

Undergraduate: Whitman College
M.D.: Oregon Health & Science University
Residency: Oregon Health & Science University
Fellowship: Stanford University
Academic interests: Hypertension, medical education, and politics in medicine. 

Jose Rueda

Jose Rueda, M.D.
Director, OHSU Comprehensive Hypertension Program
Medical Director, FMC Piedmont Dialysis Unit
Medical Director, FMC The Dalles Dialysis Unit
Associate Professor of Medicine, School of Medicine

M.D.: Pontificia Universidad Javeriana, Bogota, Colombia
Residency: Washington University in St. Louis
Fellowship: Washington University in St. Louis
Academic interests: Secondary causes of hypertension and glomerular diseases

Jessica Weiss

Jessica Weiss, M.D., M.C.R.
Fellowship Program Director, Division of Nephrology and Hypertension
Associate Professor of Medicine, School of Medicine

Undergraduate: Syracuse University
M.D.: Southern Illinois University School of Medicine
Residency: Oregon Health & Science University
Fellowship: Oregon Health & Science University
M.C.R.: Oregon Health & Science University
Academic interests: Kidney disease and hypertension in older adults

Raghav Wusirika

Raghav Wusirika, M.D.
​​​​​​Medical Director, OHSU Nephrology Outpatient Services
Medical Directory, FMC Hollywood Dialysis Unit
Associate Professor of Medicine, School of Medicine

Undergraduate: Case Western University
M.D.: Ohio State University
Residency: University of North Carolina at Chapel Hill
Fellowship: University of Michigan
Academic interests: Vascular access management and estimating GFR in kidney transplant donors

Transplant Faculty

Angelo de Mattos, transplant nephrologist and director of transplant medicine

Angelo de Mattos, M.D., M.P.H.
Director, Transplantation Medicine at OHSU 

Transplant Nephrology Fellowship Program Director
Professor of Medicine, School of Medicine                                                                                           

M.D.: Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
Residency: Nephrology - Hospital dos Servidores do Rio de Janeiro
Internal Medicine - University of Miami – Jackson Memorial Medical Center
Fellowship: Oregon Health & Science University
M.P.H.: Oregon State University/Portland State University
Academic interests: Transplant allocation

Joseph Lockridge

Joseph Lockridge, M.D.
Director, Kidney Transplantation at Portland VA Medical Center
Assistant Professor of Medicine, School of Medicine
Undergraduate: University of Dallas
M.D.: University of Texas Health Science Center, Houston, TX
Residency: University of Texas Southwestern
Fellowship: University of California San Francisco (Clinical), Stanford University (Transplant)
Academic interests: Cytomegalovirus exposure, transplant allocation, and outcomes in deceased donor kidney transplantation, and immunosuppression and rejection rates in African American kidney transplant recipients

Douglas Norman

Douglas Norman, M.D.
Director, Immunogenetics Laboratory
Professor of Medicine, School of Medicine

Undergraduate: Stanford University
M.D.: University of Washington
Residency: University of California at San Francisco, Beth Israel Hospital
Fellowship: Brigham and Women’s Hospital (general nephrology and transplant immunology)
Academic interests: Role of donor specific antibodies in transplant outcomes, flow cytometric cross-matching to predict rejection, and tailoring immunosuppression to patients needs

Shehzad Rehman

Shehzad Rehman, M.D.
Director of Pancreas Transplantation
Associate Professor of Medicine, School of Medicine

M.D.: King Edward Medical College, Lahore Pakistan
Residency: University of Oklahoma
Fellowship: Wayne State (Clinical), University of Florida (Transplant)
Academic interests: BK virus nephropathy and high immunological risk transplantation

Carley Shaut

Carley A. Shaut, Ph.D.
Technical Director, OHSU Laboratory of Immunogenetics and Transplantation
ASHI Co-Director, OHSU Laboratory of Immunogenetics and Transplantation
Assistant Professor of Medicine, School of Medicine

Undergraduate: George Fox University
Ph.D.: Oregon Health & Science University
Academic interests: Genetics, histocompatibility, and immunogenetics

Megan Stack

Megan Stack, F.N.P.
Instructor of Medicine, Division of Nephrology and Hypertension
Undergraduate: Fordham University
B.S.N.: Pace University
M.S.N.: Pace University
Academic interests: Transplantation

Research Faculty

Ryan Cornelius Photo

Ryan Cornelius, Ph.D.
Instructor of Medicine, School of Medicine
Undergraduate: Minnesota State University
Ph.D.: University of Nebraska Medical Center
Fellowship: OHSU Division of Nephrology and Hypertension
Academic interests: COP9 signalosome regulation of cullin-RING ligases in kidney, hypertension, and kidney disease

Peter Mayinger

Peter Mayinger, Ph.D.
Associate Professor of Medicine, School of Medicine
Undergraduate: Technical University (Munich, Germany)
Ph.D.: Ludwig Maximilans University (Munich, Germany)
Ph.D.: Heidelberg University (Heidelberg, Germany)
Fellowship: Columbia University (Clinical and Glomerulonephritis)
Academic Interests: Membranes and sorting, cell signaling, cell proliferation and differentiation, lipid signaling disorders, and cell proliferative diseases

Jim McCormick

James McCormick, Ph.D.
Associate Professor of Medicine, School of Medicine
Undergraduate: University of Edinburgh (UK)
Ph.D.: University of Edinburgh (UK)
Fellowship: University of California, San Francisco (Nephrology)
Academic Interests: Mouse models to examine mechanisms of blood pressure regulation

Jonathan Nelson

Jonathan Nelson, Ph.D.
Instructor, School of Medicine
Undergraduate: University of Washington
Ph.D.: Oregon Health and Science University
Postdoctoral Fellowship: Oregon Health and Science University
Academic Interests: Pericytes, Microvasculature, Renin-Angiotensin-System, Optical Clearing, Single-Cell RNA Sequencing

Chao Ling Yang

Chao-Ling Yang, M.D.
Associate Professor of Medicine, School of Medicine
M.D.: Nafan Medical University
Fellowship: Yale University School of Medicine (Nephrology)
Academic Interests: Mechanisms by which WNK kinases modulate renal transporters and how mutations of WNK kinases cause human hypertension