Patrick Clark
Patrick Clark is a Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist provider (Pharmacist) practicing in Greenfield, MA, registered in the NPPES registry with NPI 1992458673 since 2022. Practices at Walgreen Co (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1992458673 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Patrick Clark |
| Sex | Male |
| Practice address | 5 PIERCE ST, Greenfield, MA, 01301 |
| Phone | 4137733801 |
| Enumeration date | 2022-02-01 |
| Last updated in NPPES | 2023-08-16 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1835P0018X | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | Primary | PH25373 | MA |
Copy-ready billing details
Provider: Patrick Clark NPI: 1992458673 Taxonomy: 1835P0018X (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist) Address: 5 PIERCE ST, Greenfield, MA, 01301
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1811902927 | Walgreen Co | Organization | Pharmacy | Greenfield, MA |
| 1083995567 | Elisabeth Johnson | Individual | Pharmacist | Greenfield, MA |
| 1679854079 | Jennifer Calantropio | Individual | Pharmacist | Greenfield, MA |
| 1619251691 | Minh Huynh | Individual | Pharmacist | Greenfield, MA |
| 1124630553 | Ann Murray | Individual | Pharmacist | Greenfield, MA |
Verify this record
Cross-check NPI 1992458673 against the authoritative CMS record: view Patrick Clark 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 2023-08-16.