Mark Seo
Mark Seo is a Pharmacist provider (Pharmacist) practicing in Porter Ranch, CA, registered in the NPPES registry with NPI 1144806225 since 2021.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1144806225 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mark Seo |
| Sex | Male |
| Practice address | 18012 HIAWATHA ST APT 285, Porter Ranch, CA, 91326 |
| Phone | 2132651960 |
| Enumeration date | 2021-03-20 |
| Last updated in NPPES | 2021-03-20 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 183500000X | Pharmacist | Primary | 84176 | CA |
Copy-ready billing details
Provider: Mark Seo NPI: 1144806225 Taxonomy: 183500000X (Pharmacist) Address: 18012 HIAWATHA ST APT 285, Porter Ranch, CA, 91326
Verify this record
Cross-check NPI 1144806225 against the authoritative CMS record: view Mark Seo 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 2021-03-20.