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Summary
Dr. Jonathan Leff is an internal medicine physician who has been practicing for over four decades. His primary specialty is internal medicine, with additional expertise in critical care medicine and pediatrics. Dr. Leff received his medical degree from the Perelman School of Medicine at the University of Pennsylvania, one of the nation's leading medical institutions.
Dr. Leff practices in California, with locations in both Simi Valley and Menlo Park. His extensive experience across multiple specialties allows him to provide comprehensive care for adults while also treating pediatric patients. The combination of internal medicine and critical care training enables him to manage both routine health concerns and more complex medical conditions requiring intensive monitoring and treatment.
Dr. Leff practices in California, with locations in both Simi Valley and Menlo Park. His extensive experience across multiple specialties allows him to provide comprehensive care for adults while also treating pediatric patients. The combination of internal medicine and critical care training enables him to manage both routine health concerns and more complex medical conditions requiring intensive monitoring and treatment.
AI-generated from data on this provider profile.
Quick Facts
- 42 years of experience
- University Of Pennsylvania School Of Medicine
- 4 specialties
- 3 areas of expertise
- 4 board certifications
- 2 office locations
- Male
Office Locations
Dr. Jonathan Andrew Leff has 2 locationsCompare with Similar Doctors
 |  |  |  |
| Dr. Jonathan Andrew Leff, MD | Eric Harker | Dr. Daniel Benhuri, MD | Dr. Alaa Hajal, MD |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 42 Years of Experience | 25 Years of Experience | 8 Years of Experience | 15 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English | ||
| Simi Valley , CA | Lyons , CO | Beverly Hills , CA | Diamond Bar , CA |
| Med School: University Of Pennsylvania School Of Medicine | Med School: Duke University School Of Medicine | Med School: Icahn School of Medicine at Mount Sinai | Med School: University Of Damascus Faculty Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Jonathan Andrew Leff
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Jonathan Andrew Leff has the following 4 specialties
Specialty Expertise
Dr. Jonathan Andrew Leff has the following 3 areas of expertise
Certifications, License, & Education
42 Years Experience
EDUCATION & TRAINING
Medical School
University Of Pennsylvania School Of Medicine
Perelman School Of Medicine At University Of PennsylvaniaGraduated in 1984
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Frequently Asked Questions
- Does Dr. Jonathan Leff accept virtual/telehealth appointments?
- Dr. Jonathan Leff has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Where is Dr. Jonathan Leff's office located?
- Dr. Jonathan Leff's office is located at 678 Rustic Hills Dr, Simi Valley, CA, 93065.
- How can I make an appointment with Dr. Jonathan Leff?
- You can find contact information for Dr. Jonathan Leff here on Vitals.
- Does Dr. Jonathan Leff accept my insurance?
- You can see the insurance plans that Dr. Jonathan Leff accepts on their Vitals profile.
- Is Dr. Jonathan Leff accepting new patients?
- Dr. Jonathan Leff has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
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