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

Robert Sidney Schwartz MD, PLLC

Organization Gynecologic Oncology Physician · NPI 1013925841

Robert Sidney Schwartz MD, PLLC is a Gynecologic Oncology Physician in West Islip, 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?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

500 Montauk Hwy Ste W
West Islip, NY 11795-4418
Phone: (631) 661-5511
Fax: (631) 661-5516
Show map & directions

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

Specialties & licences

Gynecologic Oncology Physician (primary) Taxonomy 207VX0201X · Licence 104203 (NY)

Record details

NPI number1013925841
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Anna Schwartz — Office Manager · (917) 952-0035
NPI enumeratedAugust 4, 2006
Last updated in NPPESAugust 22, 2020
Mailing address500 Montauk Hwy, Suite W, West Islip, NY 11795-4418