Mr. William R. Kosch, RPH
Mr. William R. Kosch is a Pharmacist provider (Pharmacist) practicing in Redlands, CA, registered in the NPPES registry with NPI 1801066915 since 2008. The credential RPH stands for Registered Pharmacist. Practices at Caremark, L.L.C. (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1801066915 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mr. William R. Kosch |
| Credential | RPH |
| Sex | Male |
| Practice address | 1127 BRYN MAWR AVE, Redlands, CA, 92374 |
| Phone | 8002255967 |
| Fax | 9097996462 |
| Enumeration date | 2008-03-04 |
| Last updated in NPPES | 2009-02-13 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 183500000X | Pharmacist | Primary | 36426 | CA |
RPH — Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential
Copy-ready billing details
Provider: William Kosch, RPH NPI: 1801066915 Taxonomy: 183500000X (Pharmacist) Address: 1127 BRYN MAWR AVE, Redlands, CA, 92374
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1013998921 | Caremark, L.L.C. | Organization | Specialty Pharmacy | Redlands, CA |
| 1760731483 | Alice Chung | Individual | Pharmacist | Redlands, CA |
| 1134571441 | Gregory Harrington | Individual | Pharmacist | Redlands, CA |
Verify this record
Cross-check NPI 1801066915 against the authoritative CMS record: view Mr. William R. Kosch 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
Where does William Kosch practice?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2009-02-13.