Dr. Katherine Marie Clark, DC
Dr. Katherine Marie Clark is a Independent Medical Examiner Chiropractor provider (Chiropractor) practicing in Upland, CA, registered in the NPPES registry with NPI 1255125910 since 2025. The credential DC stands for Doctor of Chiropractic.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1255125910 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Katherine Marie Clark |
| Credential | DC |
| Sex | Female |
| Practice address | Upland, CA, 91784 |
| Phone | 9109915098 |
| Enumeration date | 2025-04-08 |
| Last updated in NPPES | 2025-04-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111NI0013X | Independent Medical Examiner Chiropractor | Primary | 37181 | CA |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Copy-ready billing details
Provider: Katherine Clark, DC NPI: 1255125910 Taxonomy: 111NI0013X (Independent Medical Examiner Chiropractor) Address: Upland, CA, 91784
Verify this record
Cross-check NPI 1255125910 against the authoritative CMS record: view Dr. Katherine Marie Clark 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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Is NPI 1255125910 active?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-04-08.