Nephrology in Portland, Oregon
Data updated monthly · Last refresh September 2026
73 Nephrology providers practice in Portland, and 23% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Nephrology providers in Portland
Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Ajay Pradhan, DOPortland, OR · No drug or device payments recorded (2025) ·
(503) 229-7976 Dr. Alexander Hawkins, MDPortland, OR · $247 in drug and device payments (2025) · Telehealth ·
(503) 229-7976 Dr. Amber Hertz-tang, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 292-7704 Dr. Amy Hackett, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 772-1174 Dr. Amy Li, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-3442 Dr. Angelo De Mattos, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-3442 Dr. Arnold Israelit, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 284-1937 Dr. Arthur Greenberg, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 494-3442 Dr. Aumyot Prongdong, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 256-0877 Dr. Basheer Kummangal, M.D.Portland, OR · $97 in drug and device payments (2025) ·
(503) 494-8311 Dr. Chun Khai Chong, MDPortland, OR · $358 in drug and device payments (2025) · Telehealth ·
(503) 235-5509 Dr. Claire Kassakian, MDPortland, OR · $22 in drug and device payments (2025) · Telehealth ·
(503) 235-5509 Dr. Clayton Smiley, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 229-7976 Dr. Cynthia Gaboury, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-3442 Dr. Daniel Roberts, MDPortland, OR · $404 in drug and device payments (2025) · Telehealth ·
(503) 235-5509 Dr. David Cohen, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-3442 Dr. David Ellison, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-3442 Dr. David MccarronPortland, OR · No drug or device payments recorded (2025) ·
(503) 957-0511 Dr. Deborah Lee, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-8311 Dr. Douglas Norman, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-3442 Dr. Edward Kuehnel, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 256-0877 Dr. Eric Ryan, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-8296 Dr. Fareha Nawaz, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 772-1174 Dr. Gurvinder Suri, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 235-5509 Dr. Hem Deodhar, MDPortland, OR · $359 in drug and device payments (2025) · Telehealth ·
(503) 229-7976 Dr. Holly Thomson, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-8311 Dr. Janie Luong, DOPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 256-0877 Dr. Jay Pandav, MDPortland, OR · $46 in drug and device payments (2025) · Telehealth ·
(503) 494-3442 Dr. Jean Mathew, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 292-7704 Dr. Jeffrey Komisarof, MDPortland, OR · $27 in drug and device payments (2025) ·
(503) 256-0877 Dr. Jessica Todsen, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-8211 Dr. Jessica Weiss, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-8490 Dr. Jose Rueda, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-8490 Dr. Joshua Curry, MD, PHDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-3442 Dr. Julia Tank, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 413-6722 Dr. Julie Raggio, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 256-0877 Dr. Justin Smith, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-3442 Dr. Karen Douek, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 292-7704 Dr. Leslie Steed, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 229-7976 Dr. Maria Theresa De Jesus, MDPortland, OR · $290 in drug and device payments (2025) · Telehealth ·
(503) 235-5509 Dr. Mark Nguyen, MDPortland, OR · $142 in drug and device payments (2025) · Telehealth ·
(503) 229-7976 Dr. Michael Walczyk, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 413-6722 Dr. Mitchell Hawkey, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 292-7704 Dr. Nathaniel Hocker, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-8311 Dr. Nayan Arora, M.D.Portland, OR · $1,908 in drug and device payments (2025) · Telehealth ·
(503) 494-3442 Dr. Nicole Kemper, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 292-7704 Dr. Nupur Mistry, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-3442 Dr. Oliver Padgett, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-3442 Dr. Pavan Chopra, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-3442 Conditions Nephrology providers in Portland, Oregon commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Nephrology providers. Individual practices vary, so confirm with the provider before booking.
- Chronic kidney disease
- Kidney stones
- Dialysis care
- High blood pressure
Common questions
How many Nephrology providers are in Portland, Oregon?There are 73 Nephrology providers with active NPI records practicing in Portland, according to federal NPPES data refreshed monthly.
How many Nephrology providers in Portland received drug or device company payments?17 of 73 (23%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Nephrology providers in Portland treat?Nephrology providers in Portland commonly treat chronic kidney disease, kidney stones, dialysis care, high blood pressure and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
All specialties in Portland Nephrology across Oregon