Summary

About Me

I grew up in San Francisco, spent a few years in Los Angeles for undergraduate training, and went to medical school at University of California, Davis. I then left California for the cold of the Midwest for residency at Henry Ford Hospital in Detroit, Michigan. I completed my training in Pittsburgh, Pennsylvania, working in Abdominal Imaging as well as Radiology Informatics. I am now happy to be back home in California with my family. I started working at Kaiser Permanente at Walnut Creek in 2005 as a general radiologist.

I am very interested in imaging informatics, which focuses on using systems (primarily technology) to improve access to and better utilize imaging information for the solving of medical problems. This is a natural outgrowth of my undergraduate training in anthropology and my experience in the computer-heavy field of radiology. I see myself as a bridge between the technical side of medicine and the people who actually have to use the technology.

I chose the Kaiser Permanente system because I knew of its work on using technology to improve patient care and its emphasis on evidence-based medicine. It is the perfect place for me to work in my two chosen areas of interest.

About My Home Page

Please take some time to explore some of the great links to the left in the navigation bar, and check out the additional links I have listed below.

-If you have a question about a specific medical topic, search our health encyclopedia.

-You can find a lot of good health advice by clicking here. This link leads to many other resources including health classes, a drug encyclopedia, message boards, popular health topics, and more.

-Click on this link for an overview on how to get care including online appointments and prescription refills, and how to choose your personal physician.

-RadiologyInfo - This site provides information on how radiology procedures and therapies are performed. It is useful whether you are preparing of a baseline mammogram, learning more about your child's x-ray, or researching Cancer therapy procedures.
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Quick Facts

  • 27 years of experience
  • 24 insurance plans accepted
  • speaks Spanish, Vietnamese, English
  • University Of California Davis School Of Medicine
  • 2 specialties
  • 6 areas of expertise
  • 2 board certifications
  • 6 hospital affiliations
  • 5 office locations
  • Male

Office Locations

Dr. Jonathan Leong Mates has 5 locations

Kaiser Permanente Walnut Creek Medical Center

1425 S Main StWalnut Creek, CA 94596
Mon12:00 am - 12:00 pm
Tue12:00 am - 12:00 pm
Wed12:00 am - 12:00 pm
Thu12:00 am - 12:00 pm
Fri12:00 am - 12:00 pm
Sat12:00 am - 12:00 pm
Sun12:00 am - 12:00 pm

Wilma Chan Highland Hospital Campus

1411 E 31st StOakland, CA 94602

Kaiser Permanente Antioch Medical Center

4501 Sand Creek RdAntioch, CA 94531

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Dr. Jonathan Leong Mates, MDDr. Paul Dennis Kamin, MDDr. Wayne Hua Tran, MDDr. Eric Joseph Lai, MD
Diagnostic RadiologyDiagnostic RadiologyDiagnostic RadiologyNephrology
Accepts New Patients Accepts New Patients Accepts New Patients
3.3 
27 Years of Experience 54 Years of Experience 20 Years of Experience 15 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, Vietnamese, English Speaks English, Spanish Speaks English, Spanish Speaks English, Spanish
Walnut Creek , CAMedford , ORTracy , CALivermore , CA
Med School: University Of California Davis School Of Medicine Med School: Georgetown University School Of Medicine Med School: Creighton University School Of Medicine Med School: Mcgovern Medical School At The Univ Of Texas Health Science Ctr At Houston
Current Profile
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Insurance Plans Accepted by Dr. Jonathan Leong Mates

  • Aetna
  • Alameda Alliance for Health - Medicaid (Managed)
  • Allegiance Life and Health
  • Anthem Blue Cross
  • BLUE CROSS of CALIFORNIA
  • Blue Shield of California
  • CHAMPVA
  • Cigna
  • Contra Costa Health Plan
  • Health Plan of San Joaquin
  • Health Plan of San Joaquin - Medicaid (Managed)
  • Humana
  • Kaiser Permanente
  • Kaiser Permanente - HMO
  • Kaiser Permanente - Medicaid (Managed)
  • Medica
  • Medicare
  • Medicare - Medicare
  • Meritain Health
  • Three Rivers Providers Network (TRPN) - Medicaid (Managed)
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicare
  • Western Health Advantage

Medical Specialties

Dr. Jonathan Leong Mates has the following 2 specialties

Specialty Expertise

Dr. Jonathan Leong Mates has the following 6 areas of expertise

  • CT Scan
  • Internal Medicine
  • MRI
  • PET Scan
  • Ultrasound
  • X-Ray

Certifications, License, & Education

27 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2026, Active

EDUCATION & TRAINING

Medical School

University Of California Davis School Of MedicineGraduated in 1999

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Frequently Asked Questions

What languages does Dr. Jonathan Mates speak?
Dr. Jonathan Mates speaks Spanish, Vietnamese, and English.
Is Dr. Jonathan Mates accepting new patients?
Dr. Jonathan Mates 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 Mates?
You can find contact information for Dr. Jonathan Mates here on Vitals.
Does Dr. Jonathan Mates accept my insurance?
You can see the insurance plans that Dr. Jonathan Mates accepts on their Vitals profile.
Which hospitals is Dr. Jonathan Mates affiliated with?
Dr. Jonathan Mates is affiliated with Kaiser Permanente Walnut Creek Medical Center, Wilma Chan Highland Hospital Campus, Kaiser Permanente Oakland Medical Center, Alta Bates Summit Medical Center Summit Campus, Kaiser Permanente Antioch Medical Center, and Kaiser Permanente Santa Clara Medical Center.

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