Speech Therapists

We are often asked for referrals to speech therapists (also called speech/language pathologists, or SLPs) knowledgeable about Parkinson's Disease (PD) in our geographic area. Here's a list of some we have heard about or know. We always suggest people ask members of their local Parkinson's support group to get recommendations.

Of course the details below may change from time to time, due to the Covid-19 pandemic and other factors. You must re-confirm all details with the professionals listed.  All locations require a referral unless indicated.

If you are looking for recommendations beyond the Stanford area, please contact us.


Balanced Speech Therapy:  Megan DePuy, SLP

Location of Services: Remote (video); Clinic in San Mateo, CA

Main Phone: 650-766-4511; Email

PD-Specific Credentials: LSVT-LOUD certified

Payment: Private Pay


Clarity Speech Therapy:  Christina Semonick, SLP

Location of Services: Mountain View, CA

Main Phone: 650-980-4080; Email

PD-Specific Credentials: LSVT-LOUD certified

Payment:  Private Pay

Notes: 9-month waitlist as of July 2021.  Secializes in complex issues (swallowing disorders with sleep apnea). 


El Camino Hospital Outpatient Rehabilitation:  Hallie Mass, SLP

Location of Services: Mountain View, CA

Main Phone: 650-940-7285  

PD-Specific Credentials: LSVT-LOUD certified

Payment:  Medicare, Medicaid, Insurance


Palo Alto Medical Foundation:  Theresa Jingyun Yao, SLP

Location of Services: Palo Alto, CA, Mountain View, CA and Fremont, CA

Main Phone: 650-853-4947

PD-Specific Credentials: LSVT-LOUD Certification, Parkinson's Voice Project SPEAK OUT!

Payment:  Medicare, MediCal, Private Insurance

Notes: Individual therapies both in person and by video.

Group practice with the "Loud Crowd" is free for those who have completed SPEAK OUT! training, whether at PAMF or elsewhere. Small group in person practice is also available for those with sufficient cognition to participate. 


Palo Alto Speech:  Randy Hoffman, SLP

Location of Services: Palo Alto, CA

Main Phone: 650-852-9460

PD-Related Credentials: LSVT-LOUD  certified

Payment:  Private Pay

Notes:  Individual therapies via video due to COVID-19.


Santa Clara Valley Medical Center:  Holly Hamilton, SLP

Location of Services: Clinic in San Jose, CA

Outpatient Therapy Service Referral Center: 408-885-7106

PD-Specific Credentials: Parkinson Voice Project SPEAK OUT!

Payment: Medicare, MediCal, Private Insurance


San Jose State University:  Marcella McCollum, SLP; Pei-Tzu Tsai, SLP 

Location of Services: San Jose, CA

Main Phone: 408-924-3679; Email

PD-Specific Credentials: Some are LSVT-LOUD certified; Some are Parkinson's Voice Project SPEAK OUT! Provider

Payment:  Donations/Sliding Scale (Insurance not accepted)

Notes: Communicative Disorders and Sciences KACCD Speech Clinic (Clinics suspended due to COVID until Spring 2022.)  When clinics reopen:

No referral needed, but assessment is required, and medical records are helpful. Assessment clinics available at SJSU, if none has been done.

Clinic runs on an academic calendar so patients may have to wait until the following semester to be seen.  PD trained SLPs don't teach every semester. To do LSVT therapy both instructor and SJSU students must be LSVT certified, but not so with SPEAK OUT!


Sequoia Hospital Outpatient Rehabilitation:  Elizabeth Byrne, SLP

Location: Clinic in Redwood City, CA

Main Phone: 650-367-5517; Email

PD-Specific Credentials: LSVT-LOUD certified

Payment: Medicare, MediCal, Private Insurance

Notes:  Works Mondays and Wednesdays.


Stanford Outpatient Neurologic Rehabilitation Program:  Julie Hicks, SLP; Sarah Stranberg, SLP

Location of Services: Clinic in Redwood City, CA

Main Phone: 650-725-5106

PD-Specific Credentials: LSVT-LOUD certified

Payment:  Medicare, MediCal, Private Insurance

Notes: Referral from Stanford neurologist required