Dr. Gregory Ronald Zielinski
Dr. Gregory Ronald Zielinski is a Surgery Physician provider (Surgery) practicing in Patchogue, NY, registered in the NPPES registry with NPI 1235661133 since 2017.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1235661133 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Gregory Ronald Zielinski |
| Sex | Male |
| Practice address | 157 E WOODSIDE AVE, Patchogue, NY, 11772 |
| Phone | 6314751900 |
| Fax | 6314751955 |
| Enumeration date | 2017-03-30 |
| Last updated in NPPES | 2023-12-18 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208600000X | Surgery Physician | Primary | 315683 | NY |
Copy-ready billing details
Provider: Gregory Zielinski NPI: 1235661133 Taxonomy: 208600000X (Surgery Physician) Address: 157 E WOODSIDE AVE, Patchogue, NY, 11772
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1578525960 | Giovanni Ramos | Individual | Internal Medicine Physician | East Patchogue, NY |
| 1104889666 | Patricia Cherasard | Individual | Surgical Physician Assistant | Patchogue, NY |
| 1568649135 | Raymond Lau | Individual | Endocrinology, Diabetes & Metabolism Physician | Patchogue, NY |
| 1831376250 | Michele Lubin | Individual | Registered Dietitian | Patchogue, NY |
| 1356585699 | Barbara Brathwaite | Individual | Psychiatric/Mental Health Registered Nurse | Patchogue, NY |
| 1497983423 | Gloria Chu | Individual | Surgery Physician | Patchogue, NY |
| 1699252429 | Deanna Sparaco | Individual | Family Nurse Practitioner | Patchogue, NY |
| 1568122075 | Nneka Jagdeo | Individual | Family Nurse Practitioner | Patchogue, NY |
Verify this record
Cross-check NPI 1235661133 against the authoritative CMS record: view Dr. Gregory Ronald Zielinski 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
Is NPI 1235661133 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-12-18.