Stephen Mast, L.M.S.W

NPI 1558671735 · on the registry since 2010

Practice

Address: 93 Main St
Suite 1j
West Sayville, NY 11796
Phone: (631) 502-5220
Fax: (631) 256-9353
Organisation at this address: Sardonyx Wellness Lcsw Pllc
Linda Girimonte, Lmhc, P.C.
Lehneis Orthopedic Solutions, Llc
Innovations Counseling, Lcsw Pllc
Therapy Booth - Counseling Services
Inferred from a shared address, not stated in the registry.
Clinicians at this address: 15

Registry record

Primary taxonomy: 104100000X
104100000X
Licence states on file: NY
From the registry's licence fields, which are often incomplete.
Sex: Male
Record last updated: 2025-09-16

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in New York