Dr. Richard Austin Hajjar, MD
- Medicare services, 2024
- 929
- Medicare patients, 2024
- 393
- Part D claims, 2024
- 304
- Publications
- 2
- Hospital affiliations
- 2
- Practice address
- 43 Yawpo Ave, Oakland, NJ 07436
- Practice phone
- Call (201) 337-0066
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
William K Lee MD PA
Oakland, New Jersey
Find Dr. Hajjar's professional email, personal email and mobile number
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Dr. Richard Austin Hajjar is an interventional cardiologist in Oakland, New Jersey
Dr. Hajjar practices at William K Lee MD PA in Oakland, New Jersey.
Dr. Hajjar's NPI, 1588028138, was assigned on April 11, 2016. Dr. Hajjar graduated from University Of Cincinnati College Of Medicine in 2023. Dr. Hajjar holds New Jersey license 25MA106900.
- NPI
- 1588028138NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254778103
- NPI enumeration date
- April 11, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (201) 337-0066
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2023
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard Austin Hajjar practices at William K Lee MD PA in Oakland, New Jersey
Dr. Hajjar's primary practice is William K Lee MD PA, at 43 Yawpo Ave, Oakland, NJ 07436 in Bergen County. The practice phone is (201) 337-0066.
- William K Lee MD PA43 Yawpo Ave, Oakland, NJ 07436 · Bergen CountyPhone(201) 337-0066
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Richard Austin Hajjar is affiliated with 5 sites of care and 2 medical groups
Dr. Hajjar's primary practice is William K Lee MD PA in Oakland, New Jersey. Dr. Hajjar is also affiliated with The Valley Hospital. The medical group on file is Cardiac Associates of North Jersey. Dmand AI also links Dr. Hajjar to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Richard Austin Hajjar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hajjar practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| William K Lee MD PA | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Richard Austin Hajjar is one of 164 interventional cardiologists in New Jersey
Interventional cardiology is Dr. Hajjar's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dr. Hajjar is licensed in New Jersey.
Specialties and state licenses
- Interventional cardiology, New JerseyPrimary
Interventional cardiologists near Dr. Hajjar
Counts of interventional 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. Richard Austin Hajjar billed Medicare for 929 services in 2024
CMS data shows 929 Medicare services from Dr. Hajjar across 14 procedure codes in 2024, for 393 Medicare patients. Medicare paid $85,736 for them.
Dr. Hajjar's Medicare services by type, 2024
- Tests and treatments515
- Office and hospital visits291
- Other services123
Where Dr. Hajjar's Medicare services took place, 2024
- In an office67773%
- In a facility25227%
Dr. Hajjar compared with the New Jersey median for interventional cardiologists, 2024
- Dr. Hajjar
- New Jersey median
- Medicare services
- 929vs 2,21858% below
- Medicare patients
- 393vs 67942% below
- Part D claims
- 192vs 2,03791% below
Medians across 160 interventional cardiologists in New Jersey with Dmand AI profiles that report each measure.
Dr. Hajjar's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard Austin Hajjar treated 393 Medicare patients in 2024, average age 77
CMS counts 393 Medicare patients who saw Dr. Hajjar in 2024. The largest group is 75 to 84, with 146 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.29, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hajjar's median patient age at 68, with 44% women.
Dr. Hajjar's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hajjar's Medicare patients by sex, 2024
- Women21755%
- Men17645%
Chronic conditions among Dr. Hajjar's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease75%
- Arthritis52%
- Atrial fibrillation43%
- Heart failure36%
- Chronic kidney disease35%
- Diabetes32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hajjar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women44%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Richard Austin Hajjar wrote 304 Medicare Part D claims in 2024
In 2024, Dr. Hajjar wrote 304 Medicare Part D claims for 118 patients. 88% of them were for generic drugs. CMS names the drug for 192 of them, across 9 drugs with 11 or more claims each, at $26,451 in total drug cost. In 2023, CMS named 71 claims across 4 drugs.
Dr. Hajjar's Part D claims by kind of drug, 2024
- Generic268 claims88%
- Brand-name36 claims12%
Dr. Hajjar's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 712024: 192170%
Drugs named by CMS: 9 in 2024, 4 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Richard Austin Hajjar ranks in the 76th percentile for coronary angioplasty and stenting in Medicare
Dr. Hajjar accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hajjar as offering telehealth. CMS counts 40 procedures of coronary angioplasty and stenting by Dr. Hajjar, more than 76% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Hajjar ranks in Medicare procedure volume
- Coronary angioplasty and stenting
- 76th percentile40 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Richard Austin Hajjar has 2 publications on record
Dmand AI links 2 papers to Dr. Hajjar, published from 2019 to 2022. Dr. Hajjar's most frequent co-authors are Ahmad Alkhalil, MD, Christina Waples Estes, MD and Alexandra N. Willauer, MD.
Dr. Hajjar's most frequent co-authors
- Ahmad Alkhalil, MD1 shared paper
- Christina Waples Estes, MD1 shared paper
- Alexandra N. Willauer, MD1 shared paper
Recent publications by Dr. Hajjar
See who Dr. Hajjar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hajjar works with, so you can find a warm path to the right interventional cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Richard Austin Hajjar received $4,561 in industry payments from 2022 to 2025
CMS Open Payments shows 93 general payments to Dr. Hajjar from 25 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Abiomed paid the most, $707.
General payments to Dr. Hajjar by program year, 2022 to 2025
Companies that paid Dr. Hajjar the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Richard Austin Hajjar graduated from University Of Cincinnati College Of Medicine
Dr. Hajjar graduated from University Of Cincinnati College Of Medicine in 2023.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Richard Austin 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 |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Richard Austin 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. Richard Austin Hajjar's NPI number?
Dr. Richard Austin Hajjar's NPI number is 1588028138. It was assigned on April 11, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard Austin Hajjar?
Dr. Richard Austin Hajjar is an interventional cardiologist in Oakland, New Jersey. The primary specialty in the NPI Registry is Interventional Cardiology Physician (taxonomy code 207RI0011X).
Where does Dr. Richard Austin Hajjar practice?
Dr. Hajjar practices at 43 Yawpo Ave, Oakland, NJ 07436. Dr. Hajjar's primary practice is William K Lee MD PA in Oakland, New Jersey. Dmand AI also links Dr. Hajjar to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Richard Austin Hajjar's office phone number?
The practice phone on file for Dr. Hajjar is (201) 337-0066.
What is Dr. Richard Austin Hajjar's medical license number?
Dr. Hajjar holds New Jersey license 25MA106900.
Which hospitals is Dr. Richard Austin Hajjar affiliated with?
Dr. Hajjar is affiliated with The Valley Hospital. Dmand AI links Dr. Hajjar to 1 more hospital.
What medical group is Dr. Richard Austin Hajjar part of?
Dr. Hajjar is linked to Cardiac Associates of North Jersey. Dmand AI links Dr. Hajjar to 1 more medical group.
Does Dr. Richard Austin Hajjar accept Medicare?
Yes. CMS data shows Dr. Hajjar billed Medicare for 929 services in 2024, and Dr. Hajjar accepts Medicare assignment.
Does Dr. Richard Austin Hajjar offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hajjar as offering telehealth services.
How many Medicare patients does Dr. Richard Austin Hajjar see?
CMS counts 393 Medicare patients who saw Dr. Hajjar in 2024, with an average age of 77.
Show 7 more questionsShow fewer questions
What services does Dr. Richard Austin Hajjar bill to Medicare?
In 2024, Dr. Hajjar's most billed Medicare services were heart test or procedure (93306), heart test or procedure (93000) and hospital inpatient care (99232).
Where did Dr. Richard Austin Hajjar go to medical school?
Dr. Hajjar graduated from University Of Cincinnati College Of Medicine in 2023.
What drugs does Dr. Richard Austin Hajjar prescribe most?
In 2024 Medicare Part D data, Dr. Hajjar's most prescribed drugs by claims were Rosuvastatin Calcium, Metoprolol Succinate and Atorvastatin Calcium.
Has Dr. Richard Austin Hajjar received payments from drug or device companies?
CMS Open Payments shows $4,561 in general payments to Dr. Hajjar from 25 companies from 2022 to 2025. The largest total came from Abiomed.
How long has Dr. Richard Austin Hajjar been practicing?
Dr. Hajjar graduated from medical school in 2023, 3 years ago.
Does Dr. Richard Austin Hajjar do research?
Dmand AI links 2 publications to Dr. Hajjar, published from 2019 to 2022.
Who does Dr. Richard Austin Hajjar publish with?
Dr. Hajjar's most frequent co-authors are Ahmad Alkhalil, MD (1 shared paper), Christina Waples Estes, MD (1 shared paper) and Alexandra N. Willauer, MD (1 shared paper).
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