Infectious Disease Specialists in Washington
Data updated monthly · Last refresh October 2026
262 Infectious Disease providers practice in Washington, including 88 (34%) 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.
262providers
88telehealth
Seattletop city
Infectious Disease by city in Washington
Choose a city to see providers there.
Where Infectious Disease Specialists in Washington practice
From CMS Medicare enrollment records covering 158 of the 262 providers listed here (60%). Providers who do not bill Medicare are not included in these figures.
4%solo or small practice (under 10 clinicians)
1%mid-size group (10 to 99)
95%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Infectious Disease Specialists | All clinicians in group | Main city |
| The Association of University Physicians | 71 | 3,484 | Seattle |
| Swedish Health Services | 14 | 1,038 | Seattle |
| Franciscan Medical Group | 12 | 1,400 | Tacoma |
| Providence Health and Services Washington | 10 | 480 | Olympia |
| Virginia Mason Medical Center | 7 | 867 | Seattle |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Infectious Disease Specialists affiliated |
| University of Washington Medical Ctr | Seattle | Government | 4 of 5 | 45 |
| Harborview Medical Center | Seattle | Government | 2 of 5 | 37 |
| Swedish Medical Center | Seattle | Nonprofit | 4 of 5 | 12 |
| Tacoma General Allenmore Hospital | Tacoma | Nonprofit | 2 of 5 | 12 |
| Swedish Edmonds Hospital | Edmonds | Nonprofit | 3 of 5 | 10 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Infectious Disease 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. Abdul Siddiqui, MDAuburn, WA · $229 in drug and device payments (2025) · Telehealth ·
(253) 288-3040 Dr. Arnold-paul Cua, MDAuburn, WA · $33 in drug and device payments (2025) · Telehealth ·
(253) 876-7990 Dr. Kyaw Htun, MDAuburn, WA · No drug or device payments recorded (2025) · Telehealth ·
(253) 833-7256 Dr. Edward Leonard, MDBellevue, WA · No drug or device payments recorded (2025) ·
(425) 455-8248 Dr. Neron Balassanian, MDBellevue, WA · No drug or device payments recorded (2025) ·
(425) 260-0179 Dr. Peter Hashisaki, M.D.Bellevue, WA · No drug or device payments recorded (2025) ·
(425) 455-8248 Dr. Andrew Stevenson Joel Chandranesan, MDBellingham, WA · No drug or device payments recorded (2025) · Telehealth ·
(360) 788-8150 Dr. Claire Beiser, M.D.Bellingham, WA · No drug or device payments recorded (2025) ·
(360) 788-8150 Dr. Sara Mostad, MD, PHDBellingham, WA · No drug or device payments recorded (2025) ·
(360) 752-9919 Dr. Theodore Wright, M.D.Bellingham, WA · No drug or device payments recorded (2025) ·
(360) 788-8150 Dr. Ruchi Sharma, M.D.Bothell, WA · $121 in drug and device payments (2025) · Telehealth ·
(425) 412-7200 Dr. Joseph Herman, M.D.Bremerton, WA · $36 in drug and device payments (2025) · Telehealth ·
(360) 377-3923 Dr. Kristin Lee, MDBremerton, WA · No drug or device payments recorded (2025) ·
(360) 479-2360 Dr. Ronald Quenzer, MDBremerton, WA · No drug or device payments recorded (2025) · Telehealth ·
(360) 744-6496 Dr. Taeyong Sim, M.D.Burien, WA · No drug or device payments recorded (2025) ·
(206) 243-3049 Dr. Beverly Leite, MDEdmonds, WA · No drug or device payments recorded (2025) ·
(206) 215-2520 Dr. Sarah Mcguffin, MDEdmonds, WA · No drug or device payments recorded (2025) · Telehealth ·
(425) 640-4747 Dr. William Ehni, M.D.Edmonds, WA · No drug or device payments recorded (2025) ·
(425) 744-1740 Dr. Jonathan Hibbs, MDEllensburg, WA · No drug or device payments recorded (2025) ·
(509) 925-6100 Dr. Andrew Bishop, D.O.Everett, WA · No drug or device payments recorded (2025) ·
(425) 261-4905 Dr. Anurag Markanday, MDEverett, WA · No drug or device payments recorded (2025) ·
(425) 551-6200 Dr. Daniel Mcclung, M.D.Everett, WA · No drug or device payments recorded (2025) · Telehealth ·
(425) 261-4905 Dr. George Diaz, MDEverett, WA · No drug or device payments recorded (2025) ·
(425) 261-4940 Dr. Robert Choi, MDEverett, WA · No drug or device payments recorded (2025) ·
(425) 261-4605 Dr. San WongEverett, WA · No drug or device payments recorded (2025) · Telehealth ·
(425) 261-4905 Dr. Caitlin Bettger, MDJoint Base Lewis Mcchord, WA · No drug or device payments recorded (2025) ·
(210) 916-5910 Dr. Maithri Reddy, DOJoint Base Lewis Mcchord, WA · No drug or device payments recorded (2025) ·
(253) 968-0537 Dr. Andrew Sou, DOKent, WA · $157 in drug and device payments (2025) · Telehealth ·
(425) 251-4040 Dr. Alice Lee, MDKirkland, WA · No drug or device payments recorded (2025) · Telehealth ·
(425) 899-5100 Dr. Francis Riedo, MDKirkland, WA · $45,734 in drug and device payments (2025) ·
(425) 899-5100 Dr. Jason Van Winkle, MDKirkland, WA · $28 in drug and device payments (2025) ·
(425) 899-5100 Dr. Jordan Braunfeld, MDKirkland, WA · No drug or device payments recorded (2025) · Telehealth ·
(425) 899-5100 Dr. Eric Yang, M.D.Longview, WA · No drug or device payments recorded (2025) ·
(360) 501-3601 Dr. Edward Weber, MDMercer Island, WA · No drug or device payments recorded (2025) ·
(262) 322-7297 Dr. Collin Dela HoussayeMount Vernon, WA · No drug or device payments recorded (2025) · Telehealth ·
(360) 848-4150 Dr. Madonna Biritwum, M.D.Mount Vernon, WA · $1,050 in drug and device payments (2025) · Telehealth ·
(360) 848-4150 Dr. Mark Wallace, MDMount Vernon, WA · No drug or device payments recorded (2025) ·
(360) 848-4150 Dr. Mary Bavaro, MDMount Vernon, WA · No drug or device payments recorded (2025) · Telehealth ·
(360) 848-4150 Dr. Rehman Ukani, M.DMount Vernon, WA · No drug or device payments recorded (2025) · Telehealth ·
(360) 848-4150 Dr. April Ferguson, M.D.Olympia, WA · $139 in drug and device payments (2025) · Telehealth ·
(360) 493-4001 Dr. Dana Saunders, M.D.Olympia, WA · $17 in drug and device payments (2025) · Telehealth ·
(360) 493-4001 Dr. Kristie Lowry, M.D.Olympia, WA · No drug or device payments recorded (2025) ·
(360) 923-7000 Dr. Michael Matlock, M.D.Olympia, WA · No drug or device payments recorded (2025) ·
(360) 459-1213 Dr. Mordechai Groner, M.D. Dr. Preeti Kondal, D.O.Olympia, WA · No drug or device payments recorded (2025) · Telehealth ·
(360) 493-4001 Dr. Steven Standaert, M.D.Olympia, WA · $124 in drug and device payments (2025) ·
(360) 493-4001 Dr. Martin Ellbogen, MDPort Townsend, WA · No drug or device payments recorded (2025) ·
(360) 379-2260 Dr. Grace Kiet, MDPuyallup, WA · $121 in drug and device payments (2025) ·
(253) 697-8277 Dr. Amanda Casto, M.D., PH.D.Renton, WA · $182 in drug and device payments (2025) · Telehealth ·
(425) 690-3487 Dr. Fernando Casado Castillo, M.D.Renton, WA · $42 in drug and device payments (2025) · Telehealth ·
(425) 690-3487 Conditions Infectious Disease providers in Washington commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Infectious Disease providers. Individual practices vary, so confirm with the provider before booking.
- Long COVID
- HIV care
- Lyme disease
- Recurrent infections
- Travel medicine
Common questions
How many Infectious Disease providers are in Washington?There are 262 Infectious Disease providers with active NPI records practicing in Washington, according to federal NPPES data refreshed monthly.
Do Infectious Disease providers in Washington offer telehealth?Yes. 88 of the 262 Infectious Disease providers in Washington (about 34%) report offering telehealth services in CMS data.
Which cities in Washington have the most Infectious Disease providers?Seattle (163), Tacoma (19), Spokane (9) have the highest concentration of Infectious Disease providers in Washington.
How many Infectious Disease providers in Washington received drug or device company payments?57 of 262 Infectious Disease providers in Washington (22%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Infectious Disease providers in Washington treat?Infectious Disease providers commonly treat long COVID, HIV care, Lyme disease, recurrent infections, travel medicine 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 Infectious Disease Specialists in Washington work in independent practices or large health systems?Among 158 Infectious Disease Specialists in Washington enrolled in Medicare, 4% bill through a solo or small practice with fewer than 10 clinicians, 1% through a mid-size group of 10 to 99, and 95% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Infectious Disease Specialists in Washington work at?According to CMS facility affiliation records, the Washington hospitals where the most Infectious Disease Specialists hold privileges are University of Washington Medical Ctr in Seattle; Harborview Medical Center in Seattle; Swedish Medical Center in Seattle.
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