HealthcareDiscovery.AI / Doctors / Washington / Walla Walla / Sleep Medicine (Internal Medicine)

Sleep Medicine (Internal Medicine) in Walla Walla, Washington

Data updated monthly · Last refresh September 2026

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

Sleep Medicine (Internal Medicine) providers in Walla Walla

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. Christopher Glendinning

Walla Walla, WA · No drug or device payments recorded (2025) · (509) 897-2700

Dr. Richard Simon, MD

Walla Walla, WA · No drug or device payments recorded (2025) · (509) 522-5946

Dr. Stephen Chung, MD

Walla Walla, WA · $37 in drug and device payments (2025) · Telehealth · (509) 897-8500

Common questions

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

There are 3 Sleep Medicine (Internal Medicine) providers with active NPI records practicing in Walla Walla, 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 Walla Walla 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.