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Summary
Dr. William Lai specializes in internal medicine, focusing on the comprehensive care of adult patients. He earned his medical degree from Ohio State University College of Medicine & Public Health and brings 22 years of clinical experience to his practice. His extensive background allows him to address a wide range of health concerns affecting internal organ systems.
Dr. Lai practices at Kaiser Foundation Hospital in Fontana and Kaiser Permanente Ontario Medical Center in Ontario, California. He has particular expertise in managing high blood pressure, including emergency situations when blood pressure reaches dangerous levels. His clinical focus also includes treating high blood pressure in children and adolescents. Dr. Lai performs essential diagnostic tests such as comprehensive blood work to monitor overall health and specialized screenings to detect kidney complications in patients with diabetes.
Dr. Lai practices at Kaiser Foundation Hospital in Fontana and Kaiser Permanente Ontario Medical Center in Ontario, California. He has particular expertise in managing high blood pressure, including emergency situations when blood pressure reaches dangerous levels. His clinical focus also includes treating high blood pressure in children and adolescents. Dr. Lai performs essential diagnostic tests such as comprehensive blood work to monitor overall health and specialized screenings to detect kidney complications in patients with diabetes.
Overview based on verified provider data
Quick Facts
- 22 years of experience
- 32 insurance plans accepted
- Ohio State University College Of Medicine & Public Health
- 1 specialty
- 7 areas of expertise
- 1 hospital affiliation
- 2 office locations
- Male
Office Locations
Dr. William Lai has 2 locationsKaiser Permanente Ontario Medical Center
2295 S Vineyard AveOntario, CA 91761 Tel: (909) 724-5000
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
Sat7:00 am - 12:00 pm
SunClosed
Compare with Similar Doctors
 |  |  |  |
| Dr. William Lai, MD | Karthikeyan Viswanathan, DO | Eric Harker | Dr. Alaa Hajal, MD |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 22 Years of Experience | 12 Years of Experience | 25 Years of Experience | 15 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English, Tamil | Speaks English | ||
| Fontana , CA | Palo Alto , CA | Lyons , CO | Diamond Bar , CA |
| Med School: Ohio State University College Of Medicine & Public Health | Med School: Bassett Medical Center - Cooperstown, New York | Med School: Duke University School Of Medicine | Med School: University Of Damascus Faculty Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. William Lai
Medical Specialties
Dr. William Lai has the following specialty
Specialty Expertise
Dr. William Lai has the following 7 areas of expertise
Certifications, License, & Education
22 Years Experience
Dr. William Lai holds an active medical license in the state of California.
Medical License
Medical Doctor with an active medical license in the state of California that expires in 2027.
Education & Training
Medical School
Graduated from Ohio State University College Of Medicine & Public Health in 2004.
NPI Number
Dr. Lai's NPI number is 1528180361.
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Frequently Asked Questions
- Is Dr. William Lai accepting new patients?
- Dr. William Lai has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Does Dr. William Lai accept my insurance?
- You can see the insurance plans that Dr. William Lai accepts on their Vitals profile.
- How can I make an appointment with Dr. William Lai?
- You can find contact information for Dr. William Lai here on Vitals.
- Which hospitals is Dr. William Lai affiliated with?
- Dr. William Lai is affiliated with Kaiser Foundation Hospital.
- Does Dr. William Lai accept virtual/telehealth appointments?
- Dr. William Lai has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
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