Dr. William J. Breen, MD
- Medicare services, 2022
- 1,444
- Part D claims, 2024
- 24
- Industry payments
- $412
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 43 Crossways Park Drive, Woodbury, NY 11797
- Practice phone
- Call (516) 938-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cardiology Consultants
Multi-specialty group site · Woodbury, New York
Find Dr. Breen'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. William J. Breen is a cardiologist in West Islip, New York
Dr. Breen practices at Cardiology Consultants in Woodbury, New York.
Dr. Breen's NPI, 1225001613, was assigned on February 8, 2006. Dr. Breen graduated from New York Medical College in 1977. Dr. Breen holds New York license 137059.
- NPI
- 1225001613NPI Registry (opens in a new tab)
- NPI enumeration date
- February 8, 2006
- NPI status
- Active
- Practice phone
- (516) 938-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William J. Breen practices in Woodbury and West Islip
Dr. Breen's primary practice is Cardiology Consultants, at 43 Crossways Park Drive, Woodbury, NY 11797. The practice phone is (516) 938-3000. The NPI Registry lists Dr. Breen's practice address as 1000 Montauk Hwy, West Islip, NY 11795.
- Cardiology ConsultantsPrimary43 Crossways Park Drive, Woodbury, NY 11797Phone(516) 938-3000
- NPI Registry address1000 Montauk Hwy, West Islip, NY 11795 · Suffolk CountyPhone(516) 938-3000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. William J. Breen is affiliated with 2 sites of care and 2 medical groups
Dr. Breen's primary practice is Cardiology Consultants in Woodbury, New York. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Dr. Breen to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. William J. Breen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Breen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cardiology Consultants | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William J. Breen is one of 2,265 cardiologists in New York
Cardiovascular disease is Dr. Breen's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Breen is licensed in New York.
Specialties and state licenses
- Cardiovascular disease, New YorkPrimary
Cardiologists near Dr. Breen
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. William J. Breen billed Medicare for 1,444 services in 2022
CMS data shows 1,444 Medicare services from Dr. Breen across 9 procedure codes in 2022. Medicare paid $78,286 for them. Every service was in an office.
Dr. Breen's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 1,4052022: 66253%
- Tests and treatments
- 2021: 1,2912022: 55857%
- Lab and pathology
- 2021: 3522022: 13661%
- Other services
- 2021: 2202022: 8860%
Dr. Breen compared with the New York median for cardiologists, 2022
- Dr. Breen
- New York median
- Medicare services
- 1,444vs 1,67414% below
- Part D claims
- 326vs 1,41277% below
Medians across 2,211 cardiologists in New York with Dmand AI profiles that report each measure.
Dr. Breen's most billed Medicare procedure codes, 2022
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Breen and other cardiologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William J. Breen's patients have a median age of 56
Across all payers, Dmand AI patient panel data puts Dr. Breen's median patient age at 56, with 38% women.
Dr. Breen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women38%
- Men63%
Source: Dmand AI Patient Panel Data
Dr. William J. Breen wrote 24 Medicare Part D claims in 2024
In 2024, Dr. Breen wrote 24 Medicare Part D claims for 11 patients. 83% of them were for generic drugs. They cover 11 drugs, with $52,302 in total drug cost. In 2022, CMS named 4,533 claims across 57 drugs.
Dr. Breen's Part D claims by kind of drug, 2024
- Generic20 claims83%
- Brand-name and other4 claims17%
Dr. Breen's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 4,5332023: 32693%
Drugs named by CMS: 11 in 2023, 57 in 2022.
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
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Dr. William J. Breen received $412 in industry payments from 2016 to 2021
CMS Open Payments shows 5 general payments to Dr. Breen from 4 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Medtronic Vascular, Inc. paid the most, $225.
General payments to Dr. Breen by program year, 2016 to 2021
Companies that paid Dr. Breen the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William J. Breen graduated from New York Medical College
Dr. Breen graduated from New York Medical College in 1977.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William J. Breen'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| 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) |
| 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. William J. Breen
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. William J. Breen's NPI number?
Dr. William J. Breen's NPI number is 1225001613. It was assigned on February 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William J. Breen?
Dr. William J. Breen is a cardiologist in West Islip, New York. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. William J. Breen practice?
Dr. Breen practices at 43 Crossways Park Drive, Woodbury, NY 11797. Dr. Breen also practices at 1000 Montauk Hwy, West Islip, NY 11795. Dr. Breen's primary practice is Cardiology Consultants in Woodbury, New York. Dmand AI also links Dr. Breen to 1 group practice or clinic and 1 medical group.
What is Dr. William J. Breen's office phone number?
The practice phone on file for Dr. Breen is (516) 938-3000.
What is Dr. William J. Breen's medical license number?
Dr. Breen holds New York license 137059.
What medical group is Dr. William J. Breen part of?
Dr. Breen is linked to Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI links Dr. Breen to 1 more medical group.
Does Dr. William J. Breen accept Medicare?
Yes. CMS data shows Dr. Breen billed Medicare for 1,444 services in 2022.
What services does Dr. William J. Breen bill to Medicare?
In 2022, Dr. Breen's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93000) and lab and pathology test (85610).
Where did Dr. William J. Breen go to medical school?
Dr. Breen graduated from New York Medical College in 1977.
What drugs does Dr. William J. Breen prescribe most?
In 2023 Medicare Part D data, Dr. Breen's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Losartan Potassium.
Has Dr. William J. Breen received payments from drug or device companies?
CMS Open Payments shows $412 in general payments to Dr. Breen from 4 companies from 2016 to 2021. The largest total came from Medtronic Vascular, Inc.
How long has Dr. William J. Breen been practicing?
Dr. Breen graduated from medical school in 1977, 49 years ago.
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