Dr. Bassem Ayyash, MD
- Medicare services, 2024
- 12
- Medicare patients, 2024
- 23
- Hospital affiliations
- 1
- Industry payments
- $4,784
- Medical groups
- 3
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ayyash'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. Bassem Ayyash is a cardiothoracic surgeon in Boston, Massachusetts
Dr. Ayyash practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Ayyash's NPI, 1316292535, was assigned on July 14, 2012. Dr. Ayyash holds Massachusetts license 290932.
- NPI
- 1316292535NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668725268
- NPI enumeration date
- July 14, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Bassem Ayyash practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Ayyash's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Dr. Bassem Ayyash is affiliated with 2 sites of care and 3 medical groups
Dr. Ayyash's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Ayyash to 2 more medical groups and 1 community health center, 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. Bassem Ayyash's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ayyash practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Bassem Ayyash is one of 166 cardiothoracic surgeons in Massachusetts
Thoracic surgery (cardiothoracic vascular surgery) is Dr. Ayyash's primary specialty in the NPI Registry, under taxonomy code 208G00000X. Dmand AI has Dr. Ayyash's licenses on file in 2 states: Massachusetts and New York.
Specialties and state licenses
- Thoracic surgery (cardiothoracic vascular surgery), MassachusettsPrimary
- Student in an organized health care education/training program, New York
Cardiothoracic surgeons near Dr. Ayyash
Counts of cardiothoracic surgeons 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. Bassem Ayyash billed Medicare for 12 services in 2024
CMS data shows 12 Medicare services from Dr. Ayyash across 1 procedure code in 2024, for 23 Medicare patients. Medicare paid $2,357 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ayyash's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 112024: 129%
Dr. Ayyash compared with the Massachusetts median for cardiothoracic surgeons, 2024
- Dr. Ayyash
- Massachusetts median
- Medicare services
- 12vs 19394% below
- Medicare patients
- 23vs 15285% below
Medians across 131 cardiothoracic surgeons in Massachusetts with Dmand AI profiles that report each measure.
Dr. Ayyash'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.
Need commercial claims for Dr. Ayyash?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ayyash and other cardiothoracic surgeons in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Bassem Ayyash treated 23 Medicare patients in 2024, average age 74
CMS counts 23 Medicare patients who saw Dr. Ayyash in 2024. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 1.60, 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. Ayyash's median patient age at 73, with 22% women.
Chronic conditions among Dr. Ayyash's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Heart failure70%
- Atrial fibrillation61%
- Ischemic heart disease52%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ayyash's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women22%
- Men78%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Bassem Ayyash takes part in Medicare
Dr. Ayyash accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Bassem Ayyash received $4,784 in industry payments from 2023 to 2025
CMS Open Payments shows 22 general payments to Dr. Ayyash from 3 drug and device companies from 2023 to 2025. Consulting fees make up the largest share, 84% of the total. Paragonix Technologies, Inc. paid the most, $4,000.
General payments to Dr. Ayyash by program year, 2023 to 2025
General payments to Dr. Ayyash by kind, 2023 to 2025
- Consulting fees$4,00084%
- Food and beverage$74015%
- Travel and lodging$441%
Companies that paid Dr. Ayyash the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Bassem Ayyash'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Bassem Ayyash
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. Bassem Ayyash's NPI number?
Dr. Bassem Ayyash's NPI number is 1316292535. It was assigned on July 14, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Bassem Ayyash?
Dr. Bassem Ayyash is a cardiothoracic surgeon in Boston, Massachusetts. The primary specialty in the NPI Registry is Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (taxonomy code 208G00000X).
Where does Dr. Bassem Ayyash practice?
Dr. Ayyash practices at 55 Fruit Street, Boston, MA 02114. Dr. Ayyash's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Ayyash to 2 medical groups and 1 community health center.
What is Dr. Bassem Ayyash's office phone number?
The practice phone on file for Dr. Ayyash is (617) 726-2000.
What is Dr. Bassem Ayyash's medical license number?
Dr. Ayyash holds Massachusetts license 290932, one of the licenses on file in 2 states.
Which states has Dr. Bassem Ayyash been licensed in?
Dmand AI has state licenses on file for Dr. Ayyash in Massachusetts and New York.
Which hospitals is Dr. Bassem Ayyash affiliated with?
Dr. Ayyash practices at Massachusetts General Hospital in Boston, Massachusetts.
What medical group is Dr. Bassem Ayyash part of?
Dr. Ayyash is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Ayyash to 2 more medical groups.
Does Dr. Bassem Ayyash accept Medicare?
Yes. CMS data shows Dr. Ayyash billed Medicare for 12 services in 2024, and Dr. Ayyash accepts Medicare assignment.
How many Medicare patients does Dr. Bassem Ayyash see?
CMS counts 23 Medicare patients who saw Dr. Ayyash in 2024, with an average age of 74.
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What services does Dr. Bassem Ayyash bill to Medicare?
In 2024, Dr. Ayyash's most billed Medicare services were surgery: heart and blood vessels (33233).
Has Dr. Bassem Ayyash received payments from drug or device companies?
CMS Open Payments shows $4,784 in general payments to Dr. Ayyash from 3 companies from 2023 to 2025. The largest total came from Paragonix Technologies, Inc.
How long has Dr. Bassem Ayyash been practicing?
Dr. Ayyash graduated from medical school in 2008, 18 years ago.
Selling to thoracic surgery (cardiothoracic vascular surgery) practices?
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