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Sleep Medicine (Internal Medicine) in Seattle, Washington

Data updated monthly · Last refresh September 2026

14 Sleep Medicine (Internal Medicine) providers practice in Seattle. Listings are drawn from federal public records and are not endorsements.

Sleep Medicine (Internal Medicine) providers in Seattle

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. Amir Sabzpoushan, M.D.
Seattle, WA · $928 in drug and device payments (2025) · Telehealth · (206) 625-7180
Dr. David Culpepper, MD
Seattle, WA · $2,271 in drug and device payments (2025) · Telehealth · (206) 625-7180
Dr. Ifeoma Oriaku, M.D.
Seattle, WA · $16 in drug and device payments (2025) · (206) 714-8730
Dr. Justina Gamache, M.D.
Seattle, WA · No drug or device payments recorded (2025) · (253) 583-3221
Dr. Ken He, MD
Seattle, WA · $542 in drug and device payments (2025) · (253) 583-3221
Dr. Lefulesele Kholoane, M.B.B.S.
Seattle, WA · $1,034 in drug and device payments (2025) · Telehealth · (206) 860-5500
Dr. Lucas Donovan, M.D.
Seattle, WA · No drug or device payments recorded (2025) · (206) 277-6783
Dr. Martha Billings, M.D.
Seattle, WA · $35 in drug and device payments (2025) · Telehealth · (206) 744-4999
Dr. Oneil Bains, MD
Seattle, WA · $59,238 in drug and device payments (2025) · Telehealth · (206) 223-6600
Dr. Sanjay Agarwal, MD, FCCP, FAASM
Seattle, WA · $55 in drug and device payments (2025) · Telehealth · (206) 326-3000
Dr. Sravani Gajjala
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (425) 339-5453
Dr. Susan Rausch, MD
Seattle, WA · No drug or device payments recorded (2025) · (206) 223-6600
Dr. Vishesh Kapur
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 731-4999
Dr. Wynne Chen, MD
Seattle, WA · No drug or device payments recorded (2025) · Telehealth · (206) 860-5499

Common questions

How many Sleep Medicine (Internal Medicine) providers are in Seattle, Washington?

There are 14 Sleep Medicine (Internal Medicine) providers with active NPI records practicing in Seattle, according to federal NPPES data refreshed monthly.

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 Seattle Sleep Medicine (Internal Medicine) across Washington

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.