NPI Portal NPI Lookup & Verification

Caitlin Williams

Caitlin Williams is a Speech-Language Pathologist provider (Speech-Language Pathologist) practicing in Chula Vista, CA, registered in the NPPES registry with NPI 1285304311 since 2021.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1285304311
Entity type Individual (Type 1)
Name Caitlin Williams
Sex Female
Practice address Chula Vista, CA, 91910
Phone 8584992600
Enumeration date 2021-09-20
Last updated in NPPES 2021-09-20

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
235Z00000X Speech-Language Pathologist Primary 15090 CA
Copy-ready billing details
Provider: Caitlin Williams
NPI: 1285304311
Taxonomy: 235Z00000X (Speech-Language Pathologist)
Address: Chula Vista, CA, 91910

Other providers at this practice address

NPI Name Type Specialty Location
1164846234 Min Zhao Individual Internal Medicine Physician Chula Vista, CA
1265851133 Michael Cruz Individual Endocrinology, Diabetes & Metabolism Physician Chula Vista, CA
1629463302 Cristina Misra Individual Internal Medicine Physician Chula Vista, CA
1568995694 Mark Hacholski Individual Family Medicine Physician Chula Vista, CA
1437611456 Mehrafarid Tiraie Individual Internal Medicine Physician Chula Vista, CA
1245961754 Ann Page Individual Occupational Therapist Chula Vista, CA

Verify this record

Cross-check NPI 1285304311 against the authoritative CMS record: view Caitlin Williams 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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Caitlin Williams?
Caitlin Williams is registered in NPPES with the primary taxonomy of Speech-Language Pathologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-09-20.