Summary

Dr. Orrin M. Troum is board-certified in Internal Medicine and Rheumatology. He pioneered the use of Extremity MRI in the United States for the evaluation, clinical decision process and outcome of patients with inflammatory arthritis. He is dedicated to providing innovative medical services in a caring a professional atmosphere.

Quick Facts

  • accepting new patients
  • 5
  • 47 years of experience
  • 23 insurance plans accepted
  • speaks Spanish, English
  • LAC - USC Medical Center Los Angeles CA
  • 788 written reviews
  • 1 award
  • 2 specialties
  • 12 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 1 office location
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Awards

  • Vitals Preferred Provider

    • Vitals Preferred Provider Award
      • Preferred Provider badge recognizes providers that are committed to transparency, responsiveness and great service to patients, and have earned a high patient satisfaction rating.

  • Click for our Methodology

Office Location

The Doctors of Saint John's Rheumatology

2336 Santa Monica Blvd Ste 207Santa Monica, CA 90404

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Dr. Orrin Marshall Troum, MD
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Dr. Orrin Marshall Troum, MDDr. Iris Reyhan, MDDr. Ginder Marshall, MDDr. Emil Robert Heinze, MD
RheumatologyRheumatologyRheumatologyRheumatology
Accepts New Patients Accepts New Patients
3.4 
47 Years of Experience 16 Years of Experience 42 Years of Experience 25 Years of Experience
Virtual Visit Available No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, English Speaks Spanish, English Speaks English Speaks English, Spanish
Santa Monica , CALos Angeles , CAInglewood , CASylmar , CA
Med School: Universidad Autonoma de Guadalajara Mexico Med School: TECHNION ISRAEL INSTITUTE OF TECHNOLOGY Med School: David Geffen School Of Medicine At Ucla Med School: Loma Linda University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Orrin Marshall Troum

  • Accepts Medicare
  • Aetna HMO
  • Aetna Medicare Advantage PPO
  • Aetna PPO
  • Anthem Blue Cross HMO
  • Anthem Blue Cross PPO
  • Blue Shield of CA HMO
  • Blue Shield of CA HMO - Trio
  • Blue Shield of CA Medicare Advantage
  • Blue Shield of CA PPO
  • Cigna HMO
  • Cigna PPO
  • Coventry/First Health PPO
  • Health Net - HMO
  • Health Net PPO
  • HealthSmart (Interplan) PPO
  • Humana Medicare Advantage
  • Multiplan PPO
  • SCAN Medicare Advantage
  • TriWest - Tricare
  • United Healthcare HMO
  • United HealthCare PPO
  • US Family Health Plan - TriCare
  • Vivity by Anthem Blue Cross

Medical Specialties

Dr. Orrin Marshall Troum has the following 2 specialties

Specialty Expertise

Dr. Orrin Marshall Troum has the following 12 areas of expertise

  • Arthritis
  • Gout
  • Knee Osteoarthritis
  • Lupus
  • Osteoarthritis
  • Osteoarthritis (Hand and Wrist)
  • Osteoporosis
  • Psoriasis
  • Psoriatic Arthritis
  • Rheumatic Diseases
  • Rheumatologist
  • Tendinitis

Certifications, License, & Education

47 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2026, Active

EDUCATION & TRAINING

Fellowship

LAC - USC Medical Center Los Angeles CA1985
Los Angeles County-USC Medical Center1985

Residency

LAC - USC Medical Center Los Angeles CA1983
Los Angeles County-USC Medical Center1983

Internship

LAC - USC Medical Center Los Angeles CA1981
Los Angeles County-USC Medical Center1981

Medical School

Universidad Autonoma de Guadalajara MexicoGraduated in 1979
Universidad Autonoma de Guadalajara Facultad de MedicinaGraduated in 1979

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Frequently Asked Questions

Which hospitals is Dr. Orrin Troum affiliated with?
Dr. Orrin Troum is affiliated with Saint Johns Regional Medical Center.
What languages does Dr. Orrin Troum speak?
Dr. Orrin Troum speaks Spanish and English.
Where is Dr. Orrin Troum's office located?
Dr. Orrin Troum's office is located at 2336 Santa Monica Blvd Ste 207, Santa Monica, CA, 90404.
Does Dr. Orrin Troum accept virtual/telehealth appointments?
Yes, Dr. Orrin Troum accepts virtual/telehealth appointments. Click the virtual visit button on their Vitals profile.
Does Dr. Orrin Troum accept my insurance?
You can see the insurance plans that Dr. Orrin Troum accepts on their Vitals profile.

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