Dr. Gregory Piazza, MD
- Medicare services, 2024
- 1,449
- Medicare patients, 2024
- 1,182
- Part D claims, 2024
- 1,666
- Publications
- 212
- Clinical trials
- 6
- Practice address
- 75 Francis Street, Boston, MA 02115
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Piazza'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. Gregory Piazza is a cardiologist in Boston, Massachusetts
Dr. Piazza practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Piazza's NPI, 1326006818, was assigned on May 3, 2006. Dr. Piazza graduated from University of Massachusetts Medical School in 2001. Dr. Piazza holds Massachusetts license 217298.
- NPI
- 1326006818NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446438238
- NPI enumeration date
- May 3, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 732-5500
- 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. Gregory Piazza practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Piazza's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.
- Brigham and Women's Hospital75 Francis Street, Boston, MA 02115 · Suffolk CountyPhone(617) 732-5500
Source: Dmand AI Affiliation Data
Dr. Gregory Piazza is affiliated with 6 sites of care and 3 medical groups
Dr. Piazza's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Piazza is also affiliated with Massachusetts General Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Piazza to 3 more hospitals, 2 medical groups and 1 hospital outpatient department, 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. Gregory Piazza's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Piazza practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brigham and Women's Hospital | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Mass General Brigham and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gregory Piazza is one of 840 cardiologists in Massachusetts
Cardiovascular disease is Dr. Piazza's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Piazza is licensed in Massachusetts.
Specialties and state licenses
- Cardiovascular disease, MassachusettsPrimary
Cardiologists near Dr. Piazza
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. Gregory Piazza billed Medicare for 1,449 services in 2024
CMS data shows 1,449 Medicare services from Dr. Piazza across 7 procedure codes in 2024, for 1,182 Medicare patients. Medicare paid $63,020 for them.
Dr. Piazza's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 9482024: 9551%
- Office and hospital visits
- 2023: 5812024: 49415%
Where Dr. Piazza's Medicare services took place, 2024
- In an office715%
- In a facility1,37895%
Dr. Piazza compared with the Massachusetts median for cardiologists, 2024
- Dr. Piazza
- Massachusetts median
- Medicare services
- 1,449vs 1,61210% below
- Medicare patients
- 1,182vs 95624% above
- Part D claims
- 1,494vs 84677% above
Medians across 817 cardiologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Piazza'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. Gregory Piazza treated 1,182 Medicare patients in 2024, average age 73
CMS counts 1,182 Medicare patients who saw Dr. Piazza in 2024. The largest group is 65 to 74, with 448 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 2.22, 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. Piazza's median patient age at 68, with 60% women.
Dr. Piazza's Medicare patients by age, 2024
Dr. Piazza's Medicare patients by sex, 2024
- Women58349%
- Men59951%
Chronic conditions among Dr. Piazza's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease54%
- Arthritis53%
- Atrial fibrillation44%
- Heart failure42%
- Chronic kidney disease41%
- Anxiety38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Piazza'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
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Piazza wrote 1,666 Medicare Part D claims in 2024
In 2024, Dr. Piazza wrote 1,666 Medicare Part D claims for 330 patients. 68% of them were for generic drugs. CMS names the drug for 1,494 of them, across 23 drugs with 11 or more claims each, at $550,273 in total drug cost. In 2023, CMS named 1,102 claims across 18 drugs.
Dr. Piazza's Part D claims by kind of drug, 2024
- Generic1,138 claims68%
- Brand-name528 claims32%
Dr. Piazza'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: 1,1022024: 1,49436%
Drugs named by CMS: 23 in 2024, 18 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. Gregory Piazza offers telehealth to Medicare patients
Dr. Piazza accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Piazza as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gregory Piazza has 212 publications on record
Dmand AI links 212 papers to Dr. Piazza, published from 2008 to 2025. 2024 was the busiest year, with 24. The most frequent topics are Pulmonary Embolism, Anticoagulants and Venous Thromboembolism. Dr. Piazza has published most often in Am J Med. Dr. Piazza's most frequent co-authors are Behnood Bikdeli, MD, Umberto Campia, MD and Geoffrey Douglas Barnes, MD.
Dr. Piazza's papers by year, 2016 to 2025
Topics Dr. Piazza writes about most
- Pulmonary Embolism
- Anticoagulants
- Venous Thromboembolism
- Thrombolytic Therapy
- Fibrinolytic Agents
- Hemorrhage
- COVID-19
- Thrombosis
Dr. Piazza's most frequent co-authors
- Behnood Bikdeli, MD46 shared papers
- Umberto Campia, MD16 shared papers
- Geoffrey Douglas Barnes, MD11 shared papers
Recent publications by Dr. Piazza
See who Dr. Piazza researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Piazza works with, so you can find a warm path to the right cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory Piazza has worked on 6 clinical trials
Dmand AI links Dr. Piazza to 6 clinical trials. 2 are still active or recruiting. Conditions studied include Pulmonary Embolism, Venous Thromboembolism and Atrial Fibrillation. Brigham and Women's Hospital sponsors the most, 4. Open Payments lists research payments to Dr. Piazza that name 2 trials.
Conditions in Dr. Piazza's trials
- Pulmonary Embolism
- Venous Thromboembolism
- Atrial Fibrillation
- Diabetes Mellitus, Type 2
- Hyperlipoproteinemia Type V
Investigators on the most trials with Dr. Piazza
- Yaw Amaning Adjei-Poku, MD1 shared trial
- Erik K. Alexander, MD1 shared trial
- Antonious S. Attallah, MD1 shared trial
Recent clinical trials with Dr. Piazza
Randomized Controlled Trial of Alert-Based Computerized Decision Support for Optimizing Low-Density Lipoprotein Management (LDL-ALERT) (opens in a new tab)
Researching Cardiovascular Events With a Weekly Incretin in Diabetes (REWIND) (opens in a new tab)
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Gregory Piazza received $427,653 in industry payments from 2016 to 2025
CMS Open Payments shows 355 general payments to Dr. Piazza from 19 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 71% of the total. Boston Scientific Corporation paid the most, $160,611. It also lists 12 research payments totaling $147,830 from 2016 to 2024, naming 2 clinical trials.
General payments to Dr. Piazza by program year, 2016 to 2025
General payments to Dr. Piazza by kind, 2016 to 2025
- Consulting fees$305,28271%
- Speaker and faculty fees$66,85316%
- Travel and lodging$36,5909%
- Honoraria$11,0003%
- Other$7,7952%
Companies that paid Dr. Piazza 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. Gregory Piazza graduated from University of Massachusetts Medical School
Dr. Piazza graduated from University of Massachusetts Medical School in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory Piazza'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) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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. Gregory Piazza
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. Gregory Piazza's NPI number?
Dr. Gregory Piazza's NPI number is 1326006818. It was assigned on May 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Piazza?
Dr. Gregory Piazza is a cardiologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Gregory Piazza practice?
Dr. Piazza practices at 75 Francis Street, Boston, MA 02115. Dr. Piazza's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Piazza to 3 hospitals, 2 medical groups and 1 hospital outpatient department.
What is Dr. Gregory Piazza's office phone number?
The practice phone on file for Dr. Piazza is (617) 732-5500.
What is Dr. Gregory Piazza's medical license number?
Dr. Piazza holds Massachusetts license 217298.
Which hospitals is Dr. Gregory Piazza affiliated with?
Dr. Piazza practices at Brigham and Women's Hospital in Boston, Massachusetts. Dr. Piazza is also affiliated with Massachusetts General Hospital. Dmand AI links Dr. Piazza to 3 more hospitals.
What medical group is Dr. Gregory Piazza part of?
Dr. Piazza is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Piazza to 2 more medical groups.
Does Dr. Gregory Piazza accept Medicare?
Yes. CMS data shows Dr. Piazza billed Medicare for 1,449 services in 2024, and Dr. Piazza accepts Medicare assignment.
Does Dr. Gregory Piazza offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Piazza as offering telehealth services.
How many Medicare patients does Dr. Gregory Piazza see?
CMS counts 1,182 Medicare patients who saw Dr. Piazza in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
What services does Dr. Gregory Piazza bill to Medicare?
In 2024, Dr. Piazza's most billed Medicare services were heart test or procedure (93010), office visit, established patient (99215) and hospital inpatient care (99223).
Where did Dr. Gregory Piazza go to medical school?
Dr. Piazza graduated from University of Massachusetts Medical School in 2001.
What drugs does Dr. Gregory Piazza prescribe most?
In 2024 Medicare Part D data, Dr. Piazza's most prescribed drugs by claims were Eliquis, Rosuvastatin Calcium and Atorvastatin Calcium.
Has Dr. Gregory Piazza received payments from drug or device companies?
CMS Open Payments shows $427,653 in general payments to Dr. Piazza from 19 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Gregory Piazza been practicing?
Dr. Piazza graduated from medical school in 2001, 25 years ago.
Does Dr. Gregory Piazza do research?
Dmand AI links 212 publications to Dr. Piazza, published from 2008 to 2025. Dr. Piazza has worked on 6 clinical trials.
Who does Dr. Gregory Piazza publish with?
Dr. Piazza's most frequent co-authors are Behnood Bikdeli, MD (46 shared papers), Umberto Campia, MD (16 shared papers) and Geoffrey Douglas Barnes, MD (11 shared papers).
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