Marian A. Mattern, CNP, PMHNP, RN, is a psychiatrist practicing in Youngstown, Ohio, with a focus on addiction psychiatry. Youngstown also has 12 psychiatrists and 23 psychologists listed in this directory.
Addiction Psychiatry
Psychiatric treatment of substance use disorders, often alongside other mental health conditions.
This listing comes from the public NPI registry. Confirm availability, insurance and fit directly with the practice.
Listings are based on the public National Plan and Provider Enumeration System (NPPES) registry and may not reflect current availability, insurance, or license status. Always confirm details directly with the provider. Are you a listed psychiatrist? Claim or update your profile.