Mr. Benjamin P Obrien, PMHNP-BC, FNP-C, MSN, APRN is a doctor in Denve…read morer 80219, DENVER and has an experience of 5 years in this field. Mr. Benjamin P Obrien, PMHNP-BC, FNP-C, MSN, APRN practices at MentalHope Psychiatry in Denver 80219, DENVER.read less