Mr. Darrell Allen Olson, RPH
Mr. Darrell Allen Olson is a Pharmacist provider (Pharmacist) practicing in Danville, IL, registered in the NPPES registry with NPI 1770595589 since 2006. The credential RPH stands for Registered Pharmacist.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1770595589 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mr. Darrell Allen Olson |
| Credential | RPH |
| Sex | Male |
| Practice address | Danville, IL, 61832 |
| Phone | 2175543000 |
| Fax | 2175544808 |
| Enumeration date | 2006-08-12 |
| Last updated in NPPES | 2007-07-08 |
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 | — | IL |
RPH — Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential
Copy-ready billing details
Provider: Darrell Olson, RPH NPI: 1770595589 Taxonomy: 183500000X (Pharmacist) Address: Danville, IL, 61832
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1356349799 | Inwha Kim | Individual | Infectious Disease Physician | Danville, IL |
| 1306844667 | Brian Secrist | Individual | General Practice Dentistry | Danville, IL |
| 1083603872 | Hetal Amin | Individual | Psychiatry Physician | Danville, IL |
| 1639169485 | Gordon White | Individual | Military Health Care Provider | Danville, IL |
| 1700877438 | Andre Henriques | Individual | Prosthodontics | Danville, IL |
| 1356320238 | Kumar Bobba | Individual | Cardiovascular Disease Physician | Danville, IL |
| 1790759033 | Kolala Vasudevamurthy | Individual | Cardiovascular Disease Physician | Danville, IL |
| 1699737585 | Wayne Wing | Individual | Surgical Physician Assistant | Danville, IL |
Verify this record
Cross-check NPI 1770595589 against the authoritative CMS record: view Mr. Darrell Allen Olson 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 1770595589 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.