Dr. David Chang, MD

With 20 years of practice, Dr. David Chang is an established sleep medicine provider, MD, after earning their medical degree at Indiana University School Of Medicine in 1995. Dr. currently practices at Country Doctor Community Clinic in Seattle, Washington. Their National Provider Identifier (NPI) is 1487678769, and the profile below combines data from CMS NPPES, Medicare billing records, the HHS OIG exclusion list, and — where available — CMS Open Payments, Medicare Utilization, and Part D prescriber summaries.

Dr. David Chang's practice is located in ZIP 83642 (Seattle, Washington), which has an overall CartoChrome Healthcare Access Score of 69/100 (Moderate Access). Access to care in this area is moderate — most services are reachable but with meaningful variability by specialty.

CMS Medicare data shows Dr. David Chang as a lower-volume sleep medicine provider, treating approximately 55 Medicare beneficiaries and delivering 62 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.

Under the Physician Payments Sunshine Act, CMS reports that Dr. David Chang received $146 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.