Summary

Dr. Diane Tjornhom is a rheumatologist and internal medicine physician who earned her medical degree from the University of Minnesota Medical School. With 37 years of experience in medicine, she has developed extensive expertise in treating complex autoimmune and joint conditions. Dr. Tjornhom speaks English with her patients.

She practices at Kaiser Permanente Downey Medical Center in Downey, California. Dr. Tjornhom specializes in caring for patients with rheumatoid arthritis, lupus, and osteoarthritis. Her practice includes performing comprehensive blood work and specialized tests to monitor inflammation levels in patients with autoimmune conditions.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 37 years of experience
  • speaks English
  • University Of Minnesota Medical School
  • 2 specialties
  • 9 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 2 office locations
  • Female

Office Locations

Dr. Diane Elizabeth Tjornhom has 2 locations

Kaiser Permanente Internal Orchard Medical Offices Medicine

9449 Imperial HwyDowney, CA 90242
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
Sat8:00 am - 5:00 pm
Sun8:00 am - 5:00 pm

Kaiser Permanente Orchard Medical Offices

9449 Imperial HwyDowney, CA 90242
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

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Dr. Diane Elizabeth Tjornhom, MD
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Dr. Diane Elizabeth Tjornhom, MDDr. Dipti Doshi, MDDr. Arjang Kasravi, MDDr. Neeraj Sharma, MD
RheumatologyRheumatologyNephrologyNephrology
Accepts New Patients Accepts New Patients Accepts New Patients
4.8 
37 Years of Experience 35 Years of Experience 22 Years of Experience 14 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks Spanish, English Speaks Spanish, Tagalog Speaks Spanish, English
Downey , CACerritos , CABaldwin Park , CALos Angeles , CA
Med School: University Of Minnesota Medical School Med School: Rural Medical College Of Pravara Medical Trust Med School: University Of California Irvine College Of Medicine Med School: American University Of The Caribbean School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Diane Elizabeth Tjornhom

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Diane Elizabeth Tjornhom has the following 2 specialties

Specialty Expertise

Dr. Diane Elizabeth Tjornhom has the following 9 areas of expertise

  • Gout
  • Hip Osteoarthritis
  • Internal Medicine
  • Knee Osteoarthritis
  • Lupus
  • Osteoarthritis
  • Rheumatic Diseases
  • Rheumatoid Arthritis
  • Tendinitis

Certifications, License, & Education

37 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2025, Expired

EDUCATION & TRAINING

Medical School

University Of Minnesota Medical SchoolGraduated in 1989

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Frequently Asked Questions

Does Dr. Diane Tjornhom accept my insurance?
You can see the insurance plans that Dr. Diane Tjornhom accepts on their Vitals profile.
Which hospitals is Dr. Diane Tjornhom affiliated with?
Dr. Diane Tjornhom is affiliated with KAISER PERMANENTE DOWNEY MEDICAL CENTER.
Does Dr. Diane Tjornhom accept virtual/telehealth appointments?
Dr. Diane Tjornhom has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Diane Tjornhom's office located?
Dr. Diane Tjornhom's office is located at 9449 Imperial Hwy, Downey, CA, 90242.
How can I make an appointment with Dr. Diane Tjornhom?
You can find contact information for Dr. Diane Tjornhom here on Vitals.

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