Arleen LEANN HOUSE Downing, M.D.M.D.Unclaimed · claim itPediatric Neurodevelopmental…Santa Ana, CA19+ years experienceRegistered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.(714) 541-4684NPI 1366654774View Profile Claim