Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1790201879 Individual Practitioner Female Practitioner

Sydney Preston , MS, CCC-SLP

Speech-Language Pathologist • San Dimas, CA

Professional Overview & Biography Verified Profile Summary

Sydney Preston, MS, CCC-SLP is a registered healthcare professional specializing in Speech-Language Pathologist in San Dimas, CA. Practice services are available at 1314 W GLADSTONE ST under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

1314 W Gladstone St

San Dimas, CA 917731611

Telephone 9099718204

Specialty Benchmarks & Practice Insights

Comparative analytics for Speech-Language Pathologist in San Dimas, CA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 10.5 Yrs
State Avg: 14.3 Yrs
Regional Practice Density
10 Specialists

Practicing in San Dimas, CA (13280 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2026-08-07
Speech-Language Pathologist Primary Specialty

NUCC Taxonomy Code: 235Z00000X

State License CA 31160

The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

12 Historical Events
📍
Updated Practice Location August 07, 2026

Registered at 1314 W GLADSTONE ST, SAN DIMAS, CA 917731611 (Tel: 9099718204)

📍
Updated Business Mailing Address August 07, 2026

Registered at 1314 W GLADSTONE ST, SAN DIMAS, CA 917731611 (Tel: 9099718204)

📍
Updated Practice Location July 08, 2026

Registered at 12627 CORAL TREE RD, RANCHO CUCAMONGA, CA 917391932 (Tel: 9095386297)

📍
Updated Business Mailing Address July 08, 2026

Registered at 12627 CORAL TREE RD, RANCHO CUCAMONGA, CA 917391932 (Tel: 9095386297)

👤
Provider Name / Credentials Updated July 08, 2026

Recorded as SYDNEY PRESTON, M.S., CCC-SLP

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2026

Speech-Language Pathologist (License #31160 in CA)

NPI Profile Active August 21, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location August 21, 2017

Registered at 1500 S AVE K, STATION 3, SHROC, PORTALES, NM 88130 (Tel: 5755621011)

📍
Updated Business Mailing Address August 21, 2017

Registered at 1500 S AVE K, STATION 3, SHROC, PORTALES, NM 88130

👤
Provider Name / Credentials Updated August 21, 2017

Recorded as SYDNEY PRESTON

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 21, 2017

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration August 21, 2017

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1790201879
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 21, 2017
Last Update: August 07, 2026
Sole Proprietor: Yes

Mailing Address

1314 W Gladstone St

San Dimas, CA 917731611

Phone: 9099718204

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.