Robert Sidney Schwartz M.D., PLLC
NPI 1013925841 · Gynecologic Oncology Physician · West Islip, NY
Robert Sidney Schwartz M.D., PLLC is a Gynecologic Oncology Physician organization in West Islip, NY (NPI 1013925841).
Provider details
- NPI number
- 1013925841
- Entity type
- Organization
- Primary specialty
- Gynecologic Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Anna Schwartz, Office Manager(917) 952-0035
- License
- 104203 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-04
- Last updated
- 2020-08-22
Frequently asked questions
- What is Robert Sidney Schwartz M.D., PLLC's NPI number?
- Robert Sidney Schwartz M.D., PLLC's National Provider Identifier (NPI) is 1013925841, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Robert Sidney Schwartz M.D., PLLC?
- Robert Sidney Schwartz M.D., PLLC is classified in the NPPES registry as Gynecologic Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Sidney Schwartz M.D., PLLC located?
- Robert Sidney Schwartz M.D., PLLC's practice location on file with NPPES is 500 Montauk Hwy, West Islip, NY 11795-4418.
- What is Robert Sidney Schwartz M.D., PLLC's phone number?
- The practice phone number listed in the NPPES registry for Robert Sidney Schwartz M.D., PLLC is (631) 661-5511.
- Who is the authorized official for Robert Sidney Schwartz M.D., PLLC?
- The authorized official listed on Robert Sidney Schwartz M.D., PLLC's NPPES record is Anna Schwartz, Office Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Robert Sidney Schwartz M.D., PLLC's NPI active?
- Yes — Robert Sidney Schwartz M.D., PLLC's NPI (1013925841) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.