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Summary
Dr. Marcus Horwitz is an internal medicine physician who also specializes in infectious disease. He earned his medical degree from Columbia University College of Physicians & Surgeons and has been practicing medicine for over five decades.
Dr. Horwitz is affiliated with Ronald Reagan University of California Los Angeles Medical Center and practices in Los Angeles, California. His extensive experience in internal medicine allows him to provide comprehensive care for adult patients, while his infectious disease expertise enables him to treat complex infections and related conditions.
Dr. Horwitz is affiliated with Ronald Reagan University of California Los Angeles Medical Center and practices in Los Angeles, California. His extensive experience in internal medicine allows him to provide comprehensive care for adult patients, while his infectious disease expertise enables him to treat complex infections and related conditions.
Overview based on verified provider data
Quick Facts
- 54 years of experience
- Columbia University College Of Physicians & Surgeons
- 2 specialties
- 7 areas of expertise
- 1 hospital affiliation
- 1 office location
- Male
Office Location
Compare with Similar Doctors
 |  |  |  |
| Dr. Marcus Aaron Horwitz, MD | Eric Harker | Dr. Adewumi Bakare DMSc, PA-C | Dr. George Mousa, MD |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 54 Years of Experience | 25 Years of Experience | 5 Years of Experience | 17 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) | ||
| Los Angeles , CA | Lyons , CO | Mesquite , TX | Upland , CA |
| Med School: Columbia University College Of Physicians & Surgeons | Med School: Duke University School Of Medicine | Med School: University of Lynchburg - DMSc | Med School: University Of Aleppo Faculty Of Medicine |
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 Horwitz's office located?
- Dr. Marcus Horwitz's office is located at Ucla School Of Med, Los Angeles, CA, 90095.
- Which hospitals is Dr. Marcus Horwitz affiliated with?
- Dr. Marcus Horwitz is affiliated with Ronald Reagan University Of California Los Angeles Medical Center.
- Does Dr. Marcus Horwitz accept virtual/telehealth appointments?
- Dr. Marcus Horwitz has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Is Dr. Marcus Horwitz accepting new patients?
- Dr. Marcus Horwitz has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Does Dr. Marcus Horwitz accept my insurance?
- You can see the insurance plans that Dr. Marcus Horwitz accepts on their Vitals profile.
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