Dr. Matthew A. Diament, MD
- Medicare services, 2024
- 3,318
- Medicare patients, 2024
- 1,416
- MIPS score, 2024
- 93
- Hospital affiliations
- 6
- Medical groups
- 6
- Practice address
- 301 East Main Street, Bay Shore, NY 11706
- Practice phone
- Call (631) 968-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Matthew A. Diament is a diagnostic radiologist in Bay Shore, New York
Dr. Diament practices at South Shore University Hospital in Bay Shore, New York, part of Northwell Health.
Dr. Diament's NPI, 1679527311, was assigned on May 19, 2006. Dr. Diament graduated from State University of New York Downstate Medical Center in 2001. Dr. Diament holds New York license 239328.
- NPI
- 1679527311NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527079995
- NPI enumeration date
- May 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 968-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Matthew A. Diament practices at South Shore University Hospital in Bay Shore, New York
Dr. Diament's primary practice is South Shore University Hospital, at 301 East Main Street, Bay Shore, NY 11706 in Suffolk County. The practice phone is (631) 968-3000.
- South Shore University Hospital301 East Main Street, Bay Shore, NY 11706 · Suffolk CountyPhone(631) 968-3000
Source: Dmand AI Affiliation Data
Dr. Matthew A. Diament is affiliated with 8 sites of care and 6 medical groups
Dr. Diament's primary practice is South Shore University Hospital in Bay Shore, New York, part of Northwell Health. Dr. Diament is also affiliated with North Shore University Hospital. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Dr. Diament to 4 more hospitals, 5 medical groups and 2 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Matthew A. Diament's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diament practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| South Shore University Hospital | Available with a free account |
| +7 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Matthew A. Diament is one of 2,697 diagnostic radiologists in New York
Diagnostic radiology is Dr. Diament's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Diament is licensed in New York.
Specialties and state licenses
- Diagnostic radiology, New YorkPrimary
Diagnostic radiologists near Dr. Diament
Counts of diagnostic radiologists 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. Matthew A. Diament billed Medicare for 3,318 services in 2024
CMS data shows 3,318 Medicare services from Dr. Diament across 20 procedure codes in 2024, for 1,416 Medicare patients. Medicare paid $142,135 for them.
Dr. Diament's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 2,2912024: 2,3482%
- Other services
- 2023: 02024: 970
Where Dr. Diament's Medicare services took place, 2024
- In an office1,21637%
- In a facility2,10263%
Dr. Diament compared with the New York median for diagnostic radiologists, 2024
- Dr. Diament
- New York median
- Medicare services
- 3,318vs 2,41437% above
- Medicare patients
- 1,416vs 1,15922% above
Medians across 2,610 diagnostic radiologists in New York with Dmand AI profiles that report each measure.
Dr. Diament'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. Matthew A. Diament treated 1,416 Medicare patients in 2024, average age 80
CMS counts 1,416 Medicare patients who saw Dr. Diament in 2024. The largest group is 75 to 84, with 516 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.95, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Diament's median patient age at 74, with 51% women.
Dr. Diament's Medicare patients by age, 2024
Dr. Diament's Medicare patients by sex, 2024
- Women87462%
- Men54238%
Chronic conditions among Dr. Diament's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis67%
- Ischemic heart disease50%
- Stroke or TIA48%
- Diabetes44%
- Mood disorders42%
- Anxiety37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Diament's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women51%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Matthew A. Diament scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Diament for performance year 2024, reported through an alternative payment model (APM). Dr. Diament accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Diament's MIPS scores, performance year 2024
- 93of 100Final score
- 79.8of 100Quality
- 89of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Matthew A. Diament graduated from State University of New York Downstate Medical Center
Dr. Diament graduated from State University of New York Downstate Medical Center in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Matthew A. Diament'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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. Matthew A. Diament
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. Matthew A. Diament's NPI number?
Dr. Matthew A. Diament's NPI number is 1679527311. It was assigned on May 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew A. Diament?
Dr. Matthew A. Diament is a diagnostic radiologist in Bay Shore, New York. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Matthew A. Diament practice?
Dr. Diament practices at 301 East Main Street, Bay Shore, NY 11706. Dr. Diament's primary practice is South Shore University Hospital in Bay Shore, New York, part of Northwell Health. Dmand AI also links Dr. Diament to 4 hospitals, 5 medical groups and 2 group practices and clinics.
What is Dr. Matthew A. Diament's office phone number?
The practice phone on file for Dr. Diament is (631) 968-3000.
What is Dr. Matthew A. Diament's medical license number?
Dr. Diament holds New York license 239328.
Which hospitals is Dr. Matthew A. Diament affiliated with?
Dr. Diament practices at South Shore University Hospital in Bay Shore, New York. Dr. Diament is also affiliated with North Shore University Hospital. Dmand AI links Dr. Diament to 4 more hospitals.
What medical group is Dr. Matthew A. Diament part of?
Dr. Diament is linked to Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI links Dr. Diament to 5 more medical groups.
Does Dr. Matthew A. Diament accept Medicare?
Yes. CMS data shows Dr. Diament billed Medicare for 3,318 services in 2024, and Dr. Diament accepts Medicare assignment.
What is Dr. Matthew A. Diament's MIPS score?
Dr. Diament's MIPS final score for performance year 2024 is 93 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Matthew A. Diament see?
CMS counts 1,416 Medicare patients who saw Dr. Diament in 2024, with an average age of 80.
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What services does Dr. Matthew A. Diament bill to Medicare?
In 2024, Dr. Diament's most billed Medicare services were medical supplies or transport (A9585), diagnostic imaging (70450) and diagnostic imaging (70496).
Where did Dr. Matthew A. Diament go to medical school?
Dr. Diament graduated from State University of New York Downstate Medical Center in 2001.
How long has Dr. Matthew A. Diament been practicing?
Dr. Diament graduated from medical school in 2001, 25 years ago.
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