Gemma Tok Hyon Ko, M.D.

Internal Medicine

(562) 692-3388Pico Rivera, CA
Telehealth Available
NPI Active per CMS — Q2 2026

Gemma Ko, M.D. has been part of the Pico Rivera medical community since 2006 in group practice. A University of Hawaii John a. Burns School of Medicine graduate since 1990, she brings 36+ years of experience.

1 of 3,273 Internal Medicine providers in CASee all Internal Medicine in Pico Rivera36+ years experienceNPI since 2006

Data updated 2007-07-08 on CMS NPPES

Contact & Location

Practice Location

4511 Rosemead Blvd, Pico Rivera, CA 90660-2032

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Internal MedicineAllopathic & Osteopathic Physicians

Internal medicine physician

Taxonomy: 207R00000X

Education & Training

University of Hawaii John a. Burns School of Medicine (Class of 1990)

Virtual Internal Medicine Care With Gemma Ko

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Gemma Ko for follow-ups, medication reviews, and ongoing care — no travel to Pico Rivera required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Gemma Ko

NPI records show Dr. Ko as active with telehealth listed in Pico Rivera, CA. Note: NPI status alone doesn't confirm open availability — always call ahead. Phone: (562) 692-3388.

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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.

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