Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mary Sandner, LMSW

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1154850766

Mary Sandner, LMSW is a Clinical Social Worker in Buffalo, New York. Qualified in 2017, 9 years ago. Practices with Bestself Behavioral Health Inc, a 77-clinician group and accepts Medicare assignment.

Years since qualifying
9
In the registry since
2017
Specialties on file
2
What do these letters mean?
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

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Practice location Address checks out

768 Delaware Ave
Buffalo, NY 14209-2006
Phone: (716) 882-3151
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Counselor (primary) Taxonomy 101Y00000X
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X

Record details

NPI number1154850766
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMSW
Sole proprietorNo
NPI enumeratedJune 7, 2017
Last updated in NPPESJuly 8, 2021
Certification dateJuly 8, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Bestself Behavioral Health Inc — 77 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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