Carolyn Siu
Carolyn Siu is a Physician Assistant based in San Mateo, CA with over 2 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Patients across CA can see Carolyn Siu in person in San Mateo or via virtual visit — no travel required. A physician assistant is a person who has successfully completed an accredited education program for physician assistant.
Older · 131dNPPES updated 2026-01-13 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
50 S San Mateo Dr Fl 4, San Mateo, CA 94401-3857
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Board certified · Jan 12, 2026
Self-reported via NPPES
2 years in practice
Early-career
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Taxonomy: 363A00000X
Mailing address
Po Box 276950, Sacramento, CA 95827-6950
Differs from practice location
Primary hospital affiliation: Psychiatric
CMS Certification Number: 184014
View hospital on Medicare Care CompareVirtual Medical Care With Carolyn Siu
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Carolyn Siu for follow-ups, medication reviews, and ongoing care — no travel to San Mateo required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Carolyn Siu
NPI records show Dr. Siu as active with telehealth listed in San Mateo, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (650) 652-8500.
Sourced from CMS NPPES · OIG LEIE. See Data Methodology.
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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact Carolyn Siu
Practice Location
50 S San Mateo Dr Fl 4, San Mateo, CA 94401-3857
Mailing Address
Po Box 276950, Sacramento, CA 95827-6950
This is a provider directory. Contact the office directly to schedule appointments.
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