Dr. Roger Joseph Hajjar, MD
- Industry payments
- $5.2M
- State licenses
- 2
- Year NPI issued
- 2005
- Practice address
- 1 Gustave L Levy Pl, New York, NY 10029-6504
- Practice phone
- Call (212) 427-1540
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Hajjar's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Roger Joseph Hajjar is a cardiologist in New York, New York
Dr. Hajjar practices in New York, New York.
Dr. Hajjar's NPI, 1003801903, was assigned on September 16, 2005. Dr. Hajjar graduated from Harvard Medical School in 1990. Dr. Hajjar holds Massachusetts license 76633.
- NPI
- 1003801903NPI Registry (opens in a new tab)
- NPI enumeration date
- September 16, 2005
- NPI status
- Active
- Practice phone
- (212) 427-1540
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Roger Joseph Hajjar's practice address is in New York, New York
Dr. Hajjar's practice address in the NPI Registry is 1 Gustave L Levy Pl, New York, NY 10029-6504. The practice phone is (212) 427-1540.
- NPI Registry address1 Gustave L Levy Pl, New York, NY 10029-6504Phone(212) 427-1540
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Roger Joseph Hajjar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hajjar practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Hajjar's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Roger Joseph Hajjar is one of 2,265 cardiologists in New York
Cardiovascular disease is Dr. Hajjar's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dmand AI has Dr. Hajjar's licenses on file in 2 states: Massachusetts and New York.
Specialties and state licenses
- Cardiovascular disease, MassachusettsPrimary
- Specialist, New York
Cardiologists near Dr. Hajjar
Counts of cardiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Roger Joseph Hajjar received $5,200,239 in industry payments from 2016 to 2025
CMS Open Payments shows 39 general payments to Dr. Hajjar from 7 drug and device companies from 2016 to 2025. Acquisitions make up the largest share, 99% of the total. Bayer Healthcare Pharmaceuticals Inc. paid the most, $4,543,973.
General payments to Dr. Hajjar by program year, 2016 to 2025
General payments to Dr. Hajjar by kind, 2016 to 2025
- Acquisitions$5,163,65699%
- Travel and lodging$19,0430%
- Consulting fees$17,2700%
- Food and beverage$2700%
Companies that paid Dr. Hajjar the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Roger Joseph Hajjar graduated from Harvard Medical School
Dr. Hajjar graduated from Harvard Medical School in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Roger Joseph Hajjar's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Roger Joseph Hajjar
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Roger Joseph Hajjar's NPI number?
Dr. Roger Joseph Hajjar's NPI number is 1003801903. It was assigned on September 16, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Roger Joseph Hajjar?
Dr. Roger Joseph Hajjar is a cardiologist in New York, New York. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Roger Joseph Hajjar practice?
Dr. Hajjar practices at 1 Gustave L Levy Pl, New York, NY 10029-6504.
What is Dr. Roger Joseph Hajjar's office phone number?
The practice phone on file for Dr. Hajjar is (212) 427-1540.
What is Dr. Roger Joseph Hajjar's medical license number?
Dr. Hajjar holds Massachusetts license 76633, one of the licenses on file in 2 states.
Which states has Dr. Roger Joseph Hajjar been licensed in?
Dmand AI has state licenses on file for Dr. Hajjar in Massachusetts and New York.
Where did Dr. Roger Joseph Hajjar go to medical school?
Dr. Hajjar graduated from Harvard Medical School in 1990.
Has Dr. Roger Joseph Hajjar received payments from drug or device companies?
CMS Open Payments shows $5,200,239 in general payments to Dr. Hajjar from 7 companies from 2016 to 2025. The largest total came from Bayer Healthcare Pharmaceuticals Inc.
How long has Dr. Roger Joseph Hajjar been practicing?
Dr. Hajjar graduated from medical school in 1990, 36 years ago.
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