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

William Schlesinger MD, PC

Organization Pain Medicine (Anesthesiology) Physician · NPI 1427130780

William Schlesinger MD, PC is a Pain Medicine (Anesthesiology) Physician in Syosset, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

121 Eileen Way
Syosset, NY 11791-5302
Phone: (516) 487-9140
Fax: (516) 487-9143
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pain Medicine (Anesthesiology) Physician (primary) Taxonomy 207LP2900X · Licence 195649 (NY)

Record details

NPI number1427130780
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official William Schlesinger — Doctor · (516) 487-9140
NPI enumeratedOctober 19, 2006
Last updated in NPPESJanuary 6, 2022
Certification dateJanuary 6, 2022
Mailing address1 Pebble Ln, Roslyn Heights, NY 11577-2711