Dirk Larson, RPH
Dirk Larson is a Pharmacist provider (Pharmacist) practicing in Barron, WI, registered in the NPPES registry with NPI 1639788144 since 2020. The credential RPH stands for Registered Pharmacist.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1639788144 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dirk Larson |
| Credential | RPH |
| Sex | Male |
| Practice address | Barron, WI, 54812 |
| Phone | 7152223070 |
| Enumeration date | 2020-07-30 |
| Last updated in NPPES | 2020-07-30 |
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 | 9573-40 | WI |
RPH — Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential
Copy-ready billing details
Provider: Dirk Larson, RPH NPI: 1639788144 Taxonomy: 183500000X (Pharmacist) Address: Barron, WI, 54812
Verify this record
Cross-check NPI 1639788144 against the authoritative CMS record: view Dirk Larson 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
What is the NPI number for Dirk Larson?
Where does Dirk Larson practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-07-30.