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Summary
Dr. Warren Hsiao treats high cholesterol in children and teens, hyperlipidemia, and hypertension. He has practiced internal medicine for 32 years and speaks English and Spanish. Dr. Hsiao is affiliated with Harbor UCLA Medical Center, Kaiser Permanente South Bay Medical Center, Torrance Memorial Medical Center, and Providence Little Company of Mary Medical Center Torrance, and sees patients in Torrance, California. He earned his medical degree from Tufts University School of Medicine.
Overview based on verified provider data
Quick Facts
- 32 years of experience
- speaks English, Spanish
- Tufts University School Of Medicine
- 1 specialty
- 11 areas of expertise
- 4 hospital affiliations
- 5 office locations
- Male
Office Locations
Dr. Warren Hsiao has 5 locationsKaiser Permanente Torrance Medical Offices
20790 Madrona AveTorrance, CA 90503 Tel: (800) 780-1230
Mon8:30 am - 5:30 pm
Tue8:30 am - 5:30 pm
Wed8:30 am - 5:30 pm
Thu8:30 am - 5:30 pm
Fri8:30 am - 5:30 pm
SatClosed
SunClosed
Kaiser Permanente South Bay Medical Center
25825 Vermont AveHarbor City, CA 90710 Tel: (310) 325-5111
Providence Little Company Of Mary Medical Center Torrance
4101 Torrance BlvdTorrance, CA 90503 Tel: (310) 540-7676
Compare with Similar Doctors
 |  |  |  |
| Dr. Warren Hsiao, MD | Dr. Alaa Hajal, MD | Dr. George Mousa, MD | Dr. Rajmeet Kaur Mann, MD |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 32 Years of Experience | 15 Years of Experience | 17 Years of Experience | 8 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English, Spanish | Speaks English | ||
| Torrance , CA | Diamond Bar , CA | Upland , CA | Rocklin , CA |
| Med School: Tufts University School Of Medicine | Med School: University Of Damascus Faculty Of Medicine | Med School: University Of Aleppo Faculty Of Medicine | Med School: American University Of Antigua College Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Warren Hsiao
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Warren Hsiao has the following specialty
Specialty Expertise
Dr. Warren Hsiao has the following 11 areas of expertise
Certifications, License, & Education
32 Years Experience
Dr. Warren Hsiao holds an expired medical license in the state of California.
Medical License
Medical Doctor with an expired medical license in the state of California that expired in 2025.
Education & Training
Medical School
Graduated from Tufts University School Of Medicine in 1994.
NPI Number
Dr. Hsiao's NPI number is 1316095391.
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Frequently Asked Questions
- How can I make an appointment with Dr. Warren Hsiao?
- You can find contact information for Dr. Warren Hsiao here on Vitals.
- Does Dr. Warren Hsiao accept virtual/telehealth appointments?
- Dr. Warren Hsiao has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Where is Dr. Warren Hsiao's office located?
- Dr. Warren Hsiao's office is located at 20790 Madrona Ave, Torrance, CA, 90503.
- What languages does Dr. Warren Hsiao speak?
- Dr. Warren Hsiao speaks English and Spanish.
- Which hospitals is Dr. Warren Hsiao affiliated with?
- Dr. Warren Hsiao is affiliated with Harbor Ucla Medical Center, Kaiser Permanente South Bay Medical Center, Torrance Memorial Medical Center, and Providence Little Company Of Mary Medical Center Torrance.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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