Christopher H Sim, DC
Christopher H Sim is a Chiropractor provider (Chiropractor) practicing in Santa Clara, CA, registered in the NPPES registry with NPI 1558486142 since 2007. The credential DC stands for Doctor of Chiropractic. Practices at St. Thomas Medical Clinic (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1558486142 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Christopher H Sim |
| Credential | DC |
| Sex | Male |
| Practice address | Santa Clara, CA, 95051 |
| Phone | 4082607575 |
| Fax | 4085566773 |
| Enumeration date | 2007-03-20 |
| Last updated in NPPES | 2007-07-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | DC25931 | CA |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Copy-ready billing details
Provider: Christopher Sim, DC NPI: 1558486142 Taxonomy: 111N00000X (Chiropractor) Address: Santa Clara, CA, 95051
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1720083694 | Peter Chung | Individual | Family Medicine Physician | Santa Clara, CA |
| 1306005244 | St. Thomas Medical Clinic | Organization | Geriatric Medicine (Family Medicine) Physician | Santa Clara, CA |
| 1457586695 | Tom Sim | Individual | Sports Physician Chiropractor | Santa Clara, CA |
Verify this record
Cross-check NPI 1558486142 against the authoritative CMS record: view Christopher H Sim 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 2007-07-08.