HealthcareDiscovery.AI / Doctors / Washington / Nephrology

Nephrologists in Washington

Data updated monthly · Last refresh October 2026

284 Nephrology providers practice in Washington, including 126 (44%) offering telehealth. The largest concentration is in Seattle. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

284providers
126telehealth
Seattletop city

Nephrology by city in Washington

Choose a city to see providers there.

Nephrology in Seattle106 providers
Nephrology in Spokane26 providers
Nephrology in Tacoma23 providers
Nephrology in Vancouver18 providers
Nephrology in Everett13 providers
Nephrology in Olympia13 providers
Nephrology in Bellevue9 providers
Nephrology in Kent8 providers
Nephrology in Mount Vernon7 providers
Nephrology in Shoreline6 providers
Nephrology in Puyallup6 providers
Nephrology in Wenatchee6 providers
Nephrology in Longview5 providers
Nephrology in Bellingham5 providers
Nephrology in Kennewick5 providers
Nephrology in Bremerton5 providers
Nephrology in Yakima4 providers
Nephrology in Richland3 providers
Nephrology in Edmonds3 providers
Nephrology in Walla Walla3 providers
Nephrology in Kirkland2 providers
Nephrology in Burien2 providers
Nephrology in Federal Way1 providers
Nephrology in Snoqualmie1 providers

Nephrology providers in Washington

Listed by city, largest first. 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. Ashley Widmer, MD
Seattle, WA · No drug or device payments recorded (2025) · (206) 520-5000
Dr. Ayodale Braimah, MD
Seattle, WA · No drug or device payments recorded (2025) · (206) 520-5000
Dr. Baback Roshanravan, M.D.
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 744-8079
Dr. Bang Zheng, MD
Seattle, WA · No drug or device payments recorded (2025) · (206) 520-5000
Dr. Benjamin Lidgard, M.D.
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 520-5000
Dr. Bessie Mielcarek, MD, MPH
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 277-3586
Dr. Bonnie Collins, M.D.
Seattle, WA · No drug or device payments recorded (2025) · (206) 505-1101
Dr. Bruce O'neill, M.D.
Seattle, WA · No drug or device payments recorded (2025) · (206) 329-1760
Dr. Bryan Kestenbaum
Seattle, WA · $3,746 in drug and device payments (2025) · (206) 598-5068
Dr. Cary Paine, M.D.
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 598-0667
Dr. Catherine Thompson, MD
Seattle, WA · No drug or device payments recorded (2025) · (206) 223-6600
Dr. Christine Flogel, M.D.
Seattle, WA · No drug or device payments recorded (2025) · (206) 326-3000
Dr. Christine Limonte, MD
Seattle, WA · No drug or device payments recorded (2025) · (206) 520-5000
Dr. Christopher Blosser, M.D.
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 598-4615
Dr. Cyrus Cryst, MD
Seattle, WA · No drug or device payments recorded (2025) · (206) 223-6600
Dr. Daniel Lam, MD
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 744-3000
Dr. Daniel Watford, M.D.
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 520-5000
Dr. David Charney, M.D.
Seattle, WA · No drug or device payments recorded (2025) · (206) 326-3000
Dr. David Mariuma, M.D.
Seattle, WA · No drug or device payments recorded (2025) · (206) 520-5000
Dr. Diana Perkinson, MD
Seattle, WA · No drug or device payments recorded (2025) · (206) 386-3660
Dr. Duangporn Jitjai, M.D.
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 326-3000
Dr. Eileen Li
Seattle, WA · No drug or device payments recorded (2025) · (206) 598-3300
Dr. Elizabeth Kiernan
Seattle, WA · $55 in drug and device payments (2025) · (206) 520-5000
Dr. Eric Luitweiler, MD
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 320-6565
Dr. Eric Ong, M.D.
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 860-5575
Dr. Erin Biringen, MD
Seattle, WA · No drug or device payments recorded (2025) · (206) 221-7138
Dr. Fionnuala Cormack, MD
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 744-8998
Dr. Gaoyuan Huang
Seattle, WA · No drug or device payments recorded (2025) · (206) 520-5000
Dr. Heba Maraei, MBCHB
Seattle, WA · $42 in drug and device payments (2025) · (206) 221-7138
Dr. Ian De Boer, M.D.
Seattle, WA · $29,513 in drug and device payments (2025) · (206) 543-3792
Dr. Ilan Zawadzki, MD
Seattle, WA · $60 in drug and device payments (2025) · Telehealth · (206) 326-3000
Dr. Iram Aqeel, MD
Seattle, WA · $116 in drug and device payments (2025) · (206) 386-9500
Dr. Iris Camille De Castro, M.D.
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 543-6420
Dr. Jamshid Honari, M.D.
Seattle, WA · No drug or device payments recorded (2025) · (206) 326-3000
Dr. Jillian Hansen, DO
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 326-3587
Dr. John Stivelman, M.D.
Seattle, WA · No drug or device payments recorded (2025) · (206) 292-2771
Dr. Jonathan Barrera-calix, MD
Seattle, WA · $122 in drug and device payments (2025) · (206) 386-9500
Dr. Jonathan Jefferson
Seattle, WA · $291 in drug and device payments (2025) · Telehealth · (206) 598-5068
Dr. Justin Bullock, MD, MPH
Seattle, WA · No drug or device payments recorded (2025) · (206) 520-5000
Dr. Karen De Wolski, MD
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 543-3605
Dr. Kathryn Treit, MD
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 520-5000
Dr. Ke Wang, M.D.
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 744-8998
Dr. Kimberly Muczynski, MD-PHD
Seattle, WA · No drug or device payments recorded (2025) · (206) 598-6190
Dr. Laura Mayeda, MD
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 520-5000
Dr. Lauren Haggerty, MD
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 223-6672
Dr. Lauren Ring, MD
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 320-6565
Dr. Leah Haseley
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 731-5939
Dr. Lisa Nakamoto, MD
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 329-1760
Dr. Mahlet Assefa, MD
Seattle, WA · No drug or device payments recorded (2025) · (206) 543-3792
Dr. Maria Nieva Salazar
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 223-6672

Conditions Nephrology providers in Washington 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.

Common questions

How many Nephrology providers are in Washington?

There are 284 Nephrology providers with active NPI records practicing in Washington, according to federal NPPES data refreshed monthly.

Do Nephrology providers in Washington offer telehealth?

Yes. 126 of the 284 Nephrology providers in Washington (about 44%) report offering telehealth services in CMS data.

Which cities in Washington have the most Nephrology providers?

Seattle (106), Spokane (26), Tacoma (23) have the highest concentration of Nephrology providers in Washington.

How many Nephrology providers in Washington received drug or device company payments?

97 of 284 Nephrology providers in Washington (34%) 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 Washington treat?

Nephrology providers 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 counts and profiles 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.

Do most Nephrologists in Washington work in independent practices or large health systems?

Among 194 Nephrologists in Washington enrolled in Medicare, 19% bill through a solo or small practice with fewer than 10 clinicians, 6% through a mid-size group of 10 to 99, and 75% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Nephrologists in Washington work at?

According to CMS facility affiliation records, the Washington hospitals where the most Nephrologists hold privileges are Tacoma General Allenmore Hospital in Tacoma; University of Washington Medical Ctr in Seattle; St Joseph Medical Center in Tacoma.

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Related

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Nephrology in Washington? Get featured.