Adwoa P. Osei, MD. FAAPMD. FAAPUnclaimed · claim itPediatric Developmental BehavioralRiverside, 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.(844) 827-8000NPI 1639378748View Profile Claim