Mr. Gregory Dalcollo
Mr. Gregory Dalcollo is a Pharmacist provider (Pharmacist) practicing in Patchogue, NY, registered in the NPPES registry with NPI 1720259757 since 2008. Practices at Walgreen Co (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1720259757 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mr. Gregory Dalcollo |
| Sex | Male |
| Practice address | Patchogue, NY, 11772 |
| Phone | 6315768141 |
| Enumeration date | 2008-03-18 |
| Last updated in NPPES | 2016-06-27 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 183500000X | Pharmacist | Primary | 049331 | NY |
Copy-ready billing details
Provider: Gregory Dalcollo NPI: 1720259757 Taxonomy: 183500000X (Pharmacist) Address: Patchogue, NY, 11772
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1225350051 | Christine Chisari | Individual | Pharmacist | Patchogue, NY |
| 1134441546 | Joyce Hutchison | Individual | Pharmacist | Patchogue, NY |
| 1366762411 | Walgreen Co | Organization | Pharmacy | Patchogue, NY |
| 1891198826 | Jennifer Spadavecchia | Individual | Pharmacist | Patchogue, NY |
Verify this record
Cross-check NPI 1720259757 against the authoritative CMS record: view Mr. Gregory Dalcollo 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 1720259757 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2016-06-27.