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Summary
Dr. Roger Hajjar has practiced internal medicine and cardiology for 36 years and is affiliated with The Mount Sinai Hospital, Mount Auburn Hospital, CHA Cambridge Hospital, and Mount Sinai Kravis Children's Hospital. He earned his medical degree from Harvard Medical School and sees patients in Cambridge, Massachusetts.
Overview based on verified provider data
Quick Facts
- 36 years of experience
- Harvard Medical School
- 2 specialties
- 14 areas of expertise
- 4 hospital affiliations
- 1 office location
- Male
Office Location
Compare with Similar Doctors
 |  |  |  |
| Dr. Roger Joseph Hajjar, MD | Eric Harker | Dr. Hans C. Jeppesen, MBA, MD | Kerry L. Folkman, MSN, NP-C |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 36 Years of Experience | 25 Years of Experience | 21 Years of Experience | 16 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | No Virtual Visit Option | Virtual Visit Available |
| Speaks English | Speaks English | Speaks English | |
| Cambridge , MA | Lyons , CO | Salem , MA | Brookline , MA |
| Med School: Harvard Medical School | Med School: Duke University School Of Medicine | Med School: University Of Minnesota Medical School | Med School: Regis College |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Roger Joseph Hajjar
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Roger Joseph Hajjar has the following 2 specialties
Specialty Expertise
Dr. Roger Joseph Hajjar has the following 14 areas of expertise
Certifications, License, & Education
36 Years Experience
Dr. Roger Joseph Hajjar holds an expired medical license in the state of Massachusetts.
Medical License
Medical Doctor with an expired medical license in the state of Massachusetts that expired in 2025.
Education & Training
Medical School
Graduated from Harvard Medical School in 1990.
NPI Number
Dr. Hajjar's NPI number is 1003801903.
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Frequently Asked Questions
- Is Dr. Roger Hajjar accepting new patients?
- Dr. Roger Hajjar has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Which hospitals is Dr. Roger Hajjar affiliated with?
- Dr. Roger Hajjar is affiliated with The Mount Sinai Hospital, Mount Auburn Hospital, Cha Cambridge Hospital, and Mount Sinai Kravis Childrens Hospital.
- How can I make an appointment with Dr. Roger Hajjar?
- You can find contact information for Dr. Roger Hajjar here on Vitals.
- Does Dr. Roger Hajjar accept virtual/telehealth appointments?
- Dr. Roger Hajjar has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Does Dr. Roger Hajjar accept my insurance?
- You can see the insurance plans that Dr. Roger Hajjar accepts on their Vitals profile.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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