STEFANIE AMMIANO, RN, LMHC, CASAC appears in the CMS NPPES registry as a Addiction (Substance Use Disorder) Counselor provider holding RN, LMHC, CASAC credentials at 31 WASHINGTON SQ W, NEW YORK, NY, 10011, with a listed phone of (908) 578-9751. NPI 1538451844 was issued on 05/04/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AMMIANO most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,276 prescription claims written by this provider, covering 104 Medicare beneficiaries and totaling roughly $738K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Addiction (Substance Use Disorder) Counselor is a high-volume specialty nationwide, with 109,141 enrolled providers across 55 states and an average of 645 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.