Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1487141974 Individual Practitioner Female Practitioner

Siobhan Mark , MS CCC-SLP

Speech-Language Pathologist • Walnut Creek, CA

Professional Overview & Biography Verified Profile Summary

Siobhan Mark, MS CCC-SLP is a registered healthcare professional specializing in Speech-Language Pathologist in Walnut Creek, CA. Practice services are available at 320 LENNON LN under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

320 Lennon Ln

Walnut Creek, CA 945982419

Telephone 9259062000
Associated Practice Facility / Clinic
🏢 Kaiser Medical Offices Facility NPI 1164635512

Specialty Benchmarks & Practice Insights

Comparative analytics for Speech-Language Pathologist in Walnut Creek, CA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 11.8 Yrs
State Avg: 14.3 Yrs
Regional Practice Density
61 Specialists

Practicing in Walnut Creek, 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

Speech-Language Pathologist Primary Specialty

NUCC Taxonomy Code: 235Z00000X

State License CA 12149

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.

Secondary Practice Locations

1425 S Main St

Walnut Creek, CA 945965318

Phone: 9252954000

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
NPI 1003994187

Doctor of Medicine (M.D.)

David Nathanson

Internal Medicine

NPI 1013478676
Dr. Paul Korn , MD

Internal Medicine

NPI 1063590164

Doctor of Medicine (M.D.)

NPI 1073665881

Doctor of Medicine (M.D.)

NPI 1083349609

Doctor of Medicine (M.D.)

Dr. Ronald Yang , MD

Internal Medicine

NPI 1083792147

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active April 19, 2018

NPI status registered as active in NPPES database

📍
Updated Practice Location April 19, 2018

Registered at 320 LENNON LN, WALNUT CREEK, CA 945982419 (Tel: 9259062000)

📍
Updated Business Mailing Address April 19, 2018

Registered at 1242 SPRUCE ST, BERKELEY, CA 947091433 (Tel: 5103236946)

👤
Provider Name / Credentials Updated April 19, 2018

Recorded as SIOBHAN MARK, MS CCC-SLP

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 19, 2018

Speech-Language Pathologist (License #12149 in CA)

🟢
Initial NPI Registration & Enumeration April 19, 2018

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1487141974
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 19, 2018
Last Update: February 11, 2022
Sole Proprietor: Yes

Mailing Address

1242 Spruce St

Berkeley, CA 947091433

Phone: 5103236946

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.