Dr. Mark Steven Weiss, DC
Dr. Mark Steven Weiss is a Chiropractor provider (Chiropractor) practicing in Brea, CA, registered in the NPPES registry with NPI 1801944285 since 2007. The credential DC stands for Doctor of Chiropractic.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1801944285 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Mark Steven Weiss |
| Credential | DC |
| Sex | Male |
| Practice address | 1001 E IMPERIAL HWY, A-1, Brea, CA, 92821 |
| Phone | 7142560411 |
| Fax | 7142560511 |
| Enumeration date | 2007-01-08 |
| Last updated in NPPES | 2010-08-09 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | DC23403 | CA |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Copy-ready billing details
Provider: Mark Weiss, DC NPI: 1801944285 Taxonomy: 111N00000X (Chiropractor) Address: 1001 E IMPERIAL HWY, A-1, Brea, CA, 92821
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1033417712 | Diana Chen | Individual | Acupuncturist | Brea, CA |
| 1760089031 | Richard Nguyen | Individual | Physical Therapist | Brea, CA |
Verify this record
Cross-check NPI 1801944285 against the authoritative CMS record: view Dr. Mark Steven Weiss 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 2026-07-10. Provider record last updated 2010-08-09.