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Summary
Dr. Marcus Horwitz is an internal medicine physician who specializes in infectious disease. He earned his medical degree from Columbia University College of Physicians and Surgeons and has been practicing medicine for over five decades. His extensive experience spans more than 54 years, making him a highly seasoned expert in both general internal medicine and the complex field of infectious diseases.
Dr. Horwitz practices at Ronald Reagan University of California Los Angeles Medical Center in Los Angeles, California. His dual expertise allows him to provide comprehensive care for adult patients while also addressing complex infectious conditions. The combination of his internal medicine background with infectious disease specialization enables him to treat patients with a wide range of medical concerns, from routine health maintenance to specialized infectious disease management.
Dr. Horwitz practices at Ronald Reagan University of California Los Angeles Medical Center in Los Angeles, California. His dual expertise allows him to provide comprehensive care for adult patients while also addressing complex infectious conditions. The combination of his internal medicine background with infectious disease specialization enables him to treat patients with a wide range of medical concerns, from routine health maintenance to specialized infectious disease management.
Overview based on verified provider data
Quick Facts
- 54 years of experience
- Columbia University College Of Physicians & Surgeons
- 2 specialties
- 7 areas of expertise
- 2 board certifications
- 1 hospital affiliation
- 1 office location
- Male
Office Location
Compare with Similar Doctors
 |  |  |  |
| Dr. Marcus Aaron Horwitz, MD | Dr. Alaa Hajal, MD | Dr. Adama Diarra, DO | Karthikeyan Viswanathan, DO |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 54 Years of Experience | 15 Years of Experience | 14 Years of Experience | 12 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English, French, Bambara | Speaks English, Tamil | ||
| LOS ANGELES , CA | Diamond Bar , CA | Tigard , OR | Palo Alto , CA |
| Med School: Columbia University College Of Physicians & Surgeons | Med School: University Of Damascus Faculty Of Medicine | Med School: Arizona College of Osteopathic Medicine | Med School: Bassett Medical Center - Cooperstown, New York |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Marcus Aaron Horwitz
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Marcus Aaron Horwitz has the following 2 specialties
Specialty Expertise
Dr. Marcus Aaron Horwitz has the following 7 areas of expertise
Certifications, License, & Education
54 Years Experience
Dr. Marcus Aaron Horwitz holds an active medical license in the state of California.
Medical License
Medical Doctor with an active medical license in the state of California.
Education & Training
Medical School
Graduated from Columbia University College Of Physicians & Surgeons in 1972.
NPI Number
Dr. Horwitz's NPI number is 1295154409.
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Frequently Asked Questions
- Where is Dr. Marcus Aaron Horwitz's office located?
- Dr. Marcus Aaron Horwitz's office is located at UCLA SCHOOL OF MED, LOS ANGELES, CA, 90095.
- Does Dr. Marcus Aaron Horwitz accept my insurance?
- You can see the insurance plans that Dr. Marcus Aaron Horwitz accepts on their Vitals profile.
- Is Dr. Marcus Aaron Horwitz accepting new patients?
- Dr. Marcus Aaron Horwitz has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Which hospitals is Dr. Marcus Aaron Horwitz affiliated with?
- Dr. Marcus Aaron Horwitz is affiliated with Ronald Reagan University Of California Los Angeles Medical Center.
- Does Dr. Marcus Aaron Horwitz accept virtual/telehealth appointments?
- Dr. Marcus Aaron Horwitz has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
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