Mark Castillo Samson, DC
Mark Castillo Samson is a Chiropractor provider (Chiropractor) practicing in Concord, CA, registered in the NPPES registry with NPI 1780274142 since 2021. The credential DC stands for Doctor of Chiropractic.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1780274142 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mark Castillo Samson |
| Credential | DC |
| Sex | Male |
| Practice address | 1170 CONCORD AVE STE 100, Concord, CA, 94520 |
| Phone | 9256810801 |
| Fax | 9256810811 |
| Enumeration date | 2021-01-20 |
| Last updated in NPPES | 2021-01-20 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | 34786 | CA |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 34786 | Other | CA | STATE LICENSE |
Copy-ready billing details
Provider: Mark Samson, DC NPI: 1780274142 Taxonomy: 111N00000X (Chiropractor) Address: 1170 CONCORD AVE STE 100, Concord, CA, 94520
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1336895804 | Denny Huang | Individual | Chiropractor | Concord, CA |
Verify this record
Cross-check NPI 1780274142 against the authoritative CMS record: view Mark Castillo Samson 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 2021-01-20.