William Schlesinger MD, PC
NPI 1427130780 · Pain Medicine (Anesthesiology) Physician · Syosset, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Schlesinger MD, PC is a Pain Medicine (Anesthesiology) Physician organization in Syosset, NY (NPI 1427130780).
Provider details
- NPI number
- 1427130780
- Entity type
- Organization
- Primary specialty
- Pain Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Schlesinger, Doctor(516) 487-9140
- License
- 195649 (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
- 2006-10-19
- Last updated
- 2022-01-06
- Certified
- 2022-01-06
Frequently asked questions
- What is William Schlesinger MD, PC's NPI number?
- William Schlesinger MD, PC's National Provider Identifier (NPI) is 1427130780, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William Schlesinger MD, PC?
- William Schlesinger MD, PC is classified in the NPPES registry as Pain Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is William Schlesinger MD, PC located?
- William Schlesinger MD, PC's practice location on file with NPPES is 121 Eileen Way, Syosset, NY 11791-5302.
- What is William Schlesinger MD, PC's phone number?
- The practice phone number listed in the NPPES registry for William Schlesinger MD, PC is (516) 487-9140.
- Does William Schlesinger MD, PC accept Medicare?
- William Schlesinger MD, PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for William Schlesinger MD, PC?
- The authorized official listed on William Schlesinger MD, PC's NPPES record is William Schlesinger, Doctor. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William Schlesinger MD, PC's NPI active?
- Yes — William Schlesinger MD, PC's NPI (1427130780) is active in the NPPES registry as of the last update on 2022-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.