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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 treating patients with complex autoimmune and joint conditions, she has developed deep expertise in managing chronic inflammatory diseases. Dr. Tjornhom speaks English and provides comprehensive care for patients dealing with long-term health challenges.
Dr. Tjornhom practices at Kaiser Permanente Downey Medical Center in Downey, California. She specializes in treating rheumatoid arthritis, osteoarthritis, and systemic lupus erythematosus. Her approach includes performing comprehensive metabolic panels and creatinine clearance tests to monitor kidney function in patients with autoimmune conditions.
Dr. Tjornhom practices at Kaiser Permanente Downey Medical Center in Downey, California. She specializes in treating rheumatoid arthritis, osteoarthritis, and systemic lupus erythematosus. Her approach includes performing comprehensive metabolic panels and creatinine clearance tests to monitor kidney function 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 locationsKaiser Permanente Internal Orchard Medical Offices Medicine
9449 Imperial HwyDowney, CA 90242 Tel: (562) 657-3137
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 Tel: (800) 823-4040
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
Compare with Similar Doctors
 |  | |  |
| Dr. Diane Elizabeth Tjornhom, MD | Dr. Dipti Doshi, MD | Carri Rose Prom | Dr. Rahul Kumar Batra |
| Rheumatology | Rheumatology | Rheumatology | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 37 Years of Experience | 35 Years of Experience | 19 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 English | |
| Downey , CA | Cerritos , CA | Beverly Hills , CA | Anaheim , CA |
| Med School: University Of Minnesota Medical School | Med School: Rural Medical College Of Pravara Medical Trust | Med School: University Of Maryland School Of Medicine | |
Current Profile | View Profile | View Profile | View Profile |
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
Certifications, License, & Education
37 Years Experience
Dr. Diane Elizabeth Tjornhom holds an expired medical license in the state of California.
Medical License
Medical Doctor with an expired medical license in the state of California that expired in 2025.
Education & Training
Medical School
Graduated from University Of Minnesota Medical School in 1989.
NPI Number
Dr. Tjornhom's NPI number is 1649339235.
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Frequently Asked Questions
- Which hospitals is Dr. Diane Elizabeth Tjornhom affiliated with?
- Dr. Diane Elizabeth Tjornhom is affiliated with KAISER PERMANENTE DOWNEY MEDICAL CENTER.
- Where is Dr. Diane Elizabeth Tjornhom's office located?
- Dr. Diane Elizabeth Tjornhom's office is located at 9449 Imperial Hwy, Downey, CA, 90242.
- Does Dr. Diane Elizabeth Tjornhom accept my insurance?
- You can see the insurance plans that Dr. Diane Elizabeth Tjornhom accepts on their Vitals profile.
- Is Dr. Diane Elizabeth Tjornhom accepting new patients?
- Dr. Diane Elizabeth Tjornhom is accepting new patients on Vitals. View Dr. Diane Elizabeth Tjornhom's profile on Vitals to make an appointment.
- Does Dr. Diane Elizabeth Tjornhom accept virtual/telehealth appointments?
- Dr. Diane Elizabeth Tjornhom has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
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