Mark Oen, RPH
Mark Oen is a Pharmacist provider (Pharmacist) practicing in Troy, OH, registered in the NPPES registry with NPI 1609597459 since 2022. The credential RPH stands for Registered Pharmacist.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1609597459 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mark Oen |
| Credential | RPH |
| Sex | Male |
| Practice address | Troy, OH, 45373 |
| Phone | 9374404760 |
| Enumeration date | 2022-09-09 |
| Last updated in NPPES | 2022-09-09 |
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 | 03321810 | OH |
RPH — Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential
Copy-ready billing details
Provider: Mark Oen, RPH NPI: 1609597459 Taxonomy: 183500000X (Pharmacist) Address: Troy, OH, 45373
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1902809445 | Ronald Setzkorn | Individual | Radiation Oncology Physician | Troy, OH |
| 1720080344 | Lyle Lowry | Individual | Surgery Physician | Troy, OH |
| 1295737815 | Melinda Duff | Individual | Surgical Physician Assistant | Troy, OH |
| 1760484315 | Patrick Larreategui | Individual | Surgery Physician | Troy, OH |
| 1639164437 | Durgarani Chadalawada | Individual | Hospitalist Physician | Troy, OH |
| 1629052865 | Martha Harris-Luken | Individual | Mental Health Counselor | Troy, OH |
| 1851366553 | Daniel Taylor | Individual | Surgery Physician | Troy, OH |
| 1033184833 | Susan Grau | Individual | Family Medicine Physician | Troy, OH |
Verify this record
Cross-check NPI 1609597459 against the authoritative CMS record: view Mark Oen 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 Mark Oen practice?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-09-09.