Summary

Dr. Jonathan Lo is an internal medicine physician who earned his medical degree from the University of California San Diego School of Medicine. With 29 years of experience in clinical practice, he focuses on comprehensive adult healthcare and the management of complex medical conditions.

Dr. Lo practices at multiple locations throughout Southern California, including Fontana, Ontario, and Long Beach. He specializes in caring for patients with diabetes and kidney disease. His expertise includes performing comprehensive health screenings and monitoring patients for diabetic complications.

Overview based on verified provider data

Quick Facts

  • 29 years of experience
  • 42 insurance plans accepted
  • University Of California San Diego School Of Medicine
  • 1 specialty
  • 1 board certification
  • 3 office locations
  • Male

Office Locations

Dr. Jonathan Ilyong Lo has 3 locations

Kaiser Foundation Hospital

9961 Sierra AveFontana, CA 92335

Saint Mary Medical Center

1050 Linden AveLong Beach, CA 90813

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Dr. Jonathan Ilyong Lo, MDKarthikeyan Viswanathan, DODr. Nima Ghadimi, MDEric Harker
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
3.8 
29 Years of Experience 12 Years of Experience 29 Years of Experience 25 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Tamil Speaks English, Spanish Speaks English
Fontana , CAPalo Alto , CAScottsdale , AZLyons , CO
Med School: University Of California San Diego School Of Medicine Med School: Bassett Medical Center - Cooperstown, New York Med School: Univ Iberoamericana Unibe Santo Domingo Med School: Duke University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Jonathan Ilyong Lo

  • AARP
  • Aetna
  • Aetna - HMO
  • Alignment Health Plan
  • Alignment Health Plan - HMO
  • AlphaCare
  • Anthem Blue Cross
  • BLUE CROSS of CALIFORNIA
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Blue Shield of California - HMO
  • CareMore
  • Cigna
  • Health Net
  • Health Net - HMO
  • Health Net - Medicare
  • HealthSmart
  • Inland Empire Health Plan
  • Inland Empire Health Plan - Medicaid
  • Kaiser Permanente
  • Kaiser Permanente - HMO
  • Kaiser Permanente - Medicaid (Managed)
  • L.A. Care Health Plan
  • L.A. Care Health Plan - HMO
  • L.A. Care Health Plan - Medicaid
  • Medicaid
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - HMO
  • Medicare - Medicaid
  • Medicare - Medicare
  • Molina Healthcare
  • Molina Healthcare - HMO
  • Molina Healthcare - Medicaid
  • Optum Health
  • SCAN Health Plan
  • SCAN Health Plan - HMO
  • SelectHealth
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO

Medical Specialties

Dr. Jonathan Ilyong Lo has the following specialty

Certifications, License, & Education

29 Years Experience

Dr. Jonathan Ilyong Lo 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 2026.

Education & Training

Medical School

Graduated from University Of California San Diego School Of Medicine in 1997.

NPI Number

Dr. Lo's NPI number is 1164570941.

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Frequently Asked Questions

Where is Dr. Jonathan Lo's office located?
Dr. Jonathan Lo's office is located at 9961 Sierra Ave, Fontana, CA, 92335.
Does Dr. Jonathan Lo accept my insurance?
You can see the insurance plans that Dr. Jonathan Lo accepts on their Vitals profile.
Is Dr. Jonathan Lo accepting new patients?
Dr. Jonathan Lo has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Jonathan Lo?
You can find contact information for Dr. Jonathan Lo here on Vitals.
Does Dr. Jonathan Lo accept virtual/telehealth appointments?
Dr. Jonathan Lo has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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