Dr. William Mark Thomas, D.C.
Dr. William Mark Thomas is a Chiropractor provider (Chiropractor) practicing in La Mirada, CA, registered in the NPPES registry with NPI 1609873082 since 2005. The credential DC stands for Doctor of Chiropractic. Practices at William M. Thomas, D.C., Inc., A Chirorpactic Corporation (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1609873082 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. William Mark Thomas |
| Credential | D.C. |
| Sex | Male |
| Practice address | 15763 IMPERIAL HWY, La Mirada, CA, 90638 |
| Phone | 5629434132 |
| Fax | 5623042917 |
| Enumeration date | 2005-06-30 |
| Last updated in NPPES | 2008-03-10 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | DC24637 | 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 |
|---|---|---|---|
| ZZZ64074Z | Other | CA | BLUE SHIELD |
Copy-ready billing details
Provider: William Thomas, D.C. NPI: 1609873082 Taxonomy: 111N00000X (Chiropractor) Address: 15763 IMPERIAL HWY, La Mirada, CA, 90638
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1346429131 | William M. Thomas, D.C., Inc., A Chirorpactic Corporation | Organization | Chiropractor | La Mirada, CA |
Verify this record
Cross-check NPI 1609873082 against the authoritative CMS record: view Dr. William Mark Thomas 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 2008-03-10.