Summary

Dr. William Tsai is a family medicine physician who has been caring for patients for three decades. He earned his medical degree from Western University Health Sciences College of Osteopathic Medicine of the Pacific, building a strong foundation in osteopathic medicine that emphasizes whole-person care. His extensive experience allows him to provide comprehensive healthcare for patients of all ages. Dr. Tsai speaks both Spanish and English, helping him connect with diverse families in his community.

Dr. Tsai practices in Upland, California, and is affiliated with San Antonio Regional Hospital. He specializes in managing high blood pressure conditions, including both routine hypertension and urgent hypertensive emergencies. His practice also focuses on pediatric hypertension, ensuring young patients receive appropriate cardiovascular care. Dr. Tsai performs depression screenings and health risk assessments to help patients maintain their overall wellness through preventive care.

AI-generated from data on this provider profile.

Quick Facts

  • 30 years of experience
  • 75 insurance plans accepted
  • speaks Spanish, English
  • Western Univ Health Sci College Of Osteopathic Medicine Of The Pacific
  • 1 specialty
  • 7 areas of expertise
  • 1 board certification
  • 2 office locations
  • Male

Office Locations

Dr. William T Tsai has 2 locations

Tsai William T Office

510 N 13th Ave Ste 101Upland, CA 91786
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed

San Antonio Regional Hospital

999 San Bernardino RdUpland, CA 91786

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Dr. William T TsaiDr. Anastasia Eileen BuergerDr. James L. Pearson, MDDr. Alexis Alexander-Epperly, MD
Family MedicineFamily MedicineFamily MedicineFamily Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
30 Years of Experience 11 Years of Experience 9 Years of Experience 28 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks Spanish, English Speaks English Speaks English Speaks English
Upland , CALong Beach , CASeal Beach , CAManassas , VA
Med School: Western Univ Health Sci College Of Osteopathic Medicine Of The Pacific Med School: Western University of Health Sciences, DO Med School: St Georges University School Of Medicine Med School: Uniformed Services University Of The Health Sciences F Edward Hebert School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. William T Tsai

  • AARP
  • Adventist Health
  • Aetna
  • Aetna - HMO
  • Alignment Health Plan
  • Alignment Health Plan - HMO
  • AlphaCare
  • AltaMed Senior BuenaCare (PACE)
  • Anthem Blue Cross
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Illinois
  • Blue Cross Blue Shield of Kansas City
  • Blue Cross Blue Shield of Nebraska
  • Blue Cross Blue Shield of North Carolina
  • Blue Cross Blue Shield of North Dakota
  • BLUE CROSS of CALIFORNIA
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Blue Shield of California - HMO
  • Brand New Day
  • Bright Health
  • CalOptima
  • CareMore
  • CareSource
  • Central California Alliance for Health
  • Cigna
  • Cigna - PPO
  • Commonwealth Care Alliance
  • Community Health Choice
  • Community Health Group
  • Contra Costa Health Plan
  • Fidelis Care (NY)
  • Florida Blue: Blue Cross Blue Shield of Florida
  • Golden State Medicare Health Plan
  • Golden State Medicare Health Plan - Medicare
  • Harvard Pilgrim Health Care
  • Health Net
  • Health Net - HMO
  • HealthFirst (NY)
  • Humana
  • Humana - HMO
  • Imperial Health Plan of California
  • Inland Empire Health Plan
  • Inland Empire Health Plan - HMO
  • Kaiser Permanente
  • Kaiser Permanente - Medicare
  • L.A. Care Health Plan
  • L.A. Care Health Plan - HMO
  • Magellan Health
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - IPA
  • Medicare - Medicaid
  • Medicare - Medicaid (Managed)
  • Medicare - Medicare
  • Mercy Care
  • Molina Healthcare
  • Molina Healthcare - HMO
  • Molina Healthcare - Medicaid (Managed)
  • Mutual of Omaha
  • Optima Health
  • Optum Health
  • Oscar Health Insurance
  • Premier Health Plan
  • SCAN Health Plan
  • SCAN Health Plan - HMO
  • SCAN Health Plan - Medicare (Advantage HMO)
  • STLDentalPlan| LLC
  • Travelers - Workers’ Compensation
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - PPO
  • Wellcare
  • Western Health Advantage

Medical Specialties

Dr. William T Tsai has the following specialty

Specialty Expertise

Dr. William T Tsai has the following 7 areas of expertise

  • Check-up
  • Contraception
  • Family Planning
  • Immunization
  • Influenza
  • Weight Loss
  • Weight Loss (non-surgical)

Certifications, License, & Education

30 Years Experience

MEDICAL LICENSE

Doctor Of Osteopathy, California, 2026, Active

EDUCATION & TRAINING

Medical School

Western Univ Health Sci College Of Osteopathic Medicine Of The PacificGraduated in 1996

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Frequently Asked Questions

Does Dr. William Tsai accept virtual/telehealth appointments?
Dr. William Tsai has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr. William Tsai accept my insurance?
You can see the insurance plans that Dr. William Tsai accepts on their Vitals profile.
How can I make an appointment with Dr. William Tsai?
You can find contact information for Dr. William Tsai here on Vitals.
Is Dr. William Tsai accepting new patients?
Dr. William Tsai has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Where is Dr. William Tsai's office located?
Dr. William Tsai's office is located at 510 N 13th Ave Ste 101, Upland, CA, 91786.

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