William Schlesinger MD, PC
William Schlesinger MD, PC is a healthcare organization registered as Pain Medicine (Anesthesiology) Physician in Syosset, NY, holding Type 2 (organization) NPI 1427130780 since 2006. The authorized official on file is William Schlesinger, Doctor.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1427130780 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | William Schlesinger MD, PC |
| Practice address | 121 EILEEN WAY, Syosset, NY, 11791 |
| Phone | 5164879140 |
| Fax | 5164879143 |
| Enumeration date | 2006-10-19 |
| Last updated in NPPES | 2022-01-06 |
Authorized official
| Name | William Schlesinger |
|---|---|
| Title | Doctor |
| Phone | 5164879140 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207LP2900X | Pain Medicine (Anesthesiology) Physician | Primary | 195649 | NY |
Copy-ready billing details
Provider: William Schlesinger MD, PC NPI: 1427130780 Taxonomy: 207LP2900X (Pain Medicine (Anesthesiology) Physician) Address: 121 EILEEN WAY, Syosset, NY, 11791
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1528050051 | Phillip Fyman | Individual | Interventional Pain Medicine Physician | Syosset, NY |
| 1760474282 | Louis Malesardi | Individual | Physician Assistant | Syosset, NY |
| 1558353078 | Alexander Weingarten | Individual | Interventional Pain Medicine Physician | Syosset, NY |
| 1639162928 | Turkan Aydagul | Individual | Physical Therapist | Syosset, NY |
| 1750417283 | Joseph Bax | Individual | Pain Medicine (Physical Medicine & Rehabilitation) Physician | Syosset, NY |
| 1427589423 | Michael Ashamalla | Individual | Gastroenterology Physician | Syosset, NY |
| 1457841967 | Phillip Fyman and Alexander Weingarten MD PC | Organization | Clinical Medical Laboratory | Syosset, NY |
| 1861165136 | Joana Von Der Linn | Individual | Family Nurse Practitioner | Syosset, NY |
Verify this record
Cross-check NPI 1427130780 against the authoritative CMS record: view William Schlesinger MD, PC on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-01-06.