Dr. Hedy Loa, MD

With 20 years of practice, Dr. Hedy Loa is an established internal medicine provider, MD, after earning their medical degree at Other in 1973. Dr. currently practices at Southern California Permanente Medical Group in Ontario, California. Their National Provider Identifier (NPI) is 1093720666, 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. Hedy Loa's practice is located in ZIP 91762 (Ontario, California), which has an overall CartoChrome Healthcare Access Score of 29/100 (Limited Access). Access constraints in this ZIP code can affect wait times, specialist availability, and emergency response — context worth knowing when choosing a provider.

CMS Medicare data shows Dr. Hedy Loa as a lower-volume internal medicine provider, treating approximately 136 Medicare beneficiaries and delivering 512 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. Hedy Loa received $63 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.