J Vasc Surg
Dr. Daniel S. Kassavin, MD
- Medicare services, 2024
- 213
- Medicare patients, 2024
- 141
- Part D claims, 2024
- 208
- Publications
- 8
- Hospital affiliations
- 1
- Practice address
- 1493 Cambridge Street, Cambridge, MA 02139
- Practice phone
- Call (617) 665-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Kassavin'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. Daniel S. Kassavin is a vascular surgeon in Cambridge, Massachusetts
Dr. Kassavin practices at CHA Cambridge Hospital in Cambridge, Massachusetts, part of Cambridge Health Alliance.
Dr. Kassavin's NPI, 1144428103, was assigned on July 10, 2007. Dr. Kassavin graduated from SUNY Downstate Health Sciences University in 2006. Dr. Kassavin's Ohio license number on file is 35.127258.
- NPI
- 1144428103NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395971162
- NPI enumeration date
- July 10, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 665-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel S. Kassavin practices at CHA Cambridge Hospital in Cambridge, Massachusetts
Dr. Kassavin's primary practice is CHA Cambridge Hospital, at 1493 Cambridge Street, Cambridge, MA 02139 in Middlesex County. The practice phone is (617) 665-1000.
- CHA Cambridge Hospital1493 Cambridge Street, Cambridge, MA 02139 · Middlesex CountyPhone(617) 665-1000
Source: Dmand AI Affiliation Data
Dr. Daniel S. Kassavin is affiliated with 1 site of care and 1 medical group
Dr. Kassavin's primary practice is CHA Cambridge Hospital in Cambridge, Massachusetts, part of Cambridge Health Alliance. The medical group on file is Cambridge Health Alliance. Dr. Kassavin's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Daniel S. Kassavin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kassavin practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CHA Cambridge Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Cambridge Health Alliance and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Daniel S. Kassavin is one of 138 vascular surgeons in Massachusetts
Vascular surgery is Dr. Kassavin's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dr. Kassavin is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Kassavin's licenses on file in 4 states: Ohio, Massachusetts, New York and New Jersey.
Specialties and state licenses
- Vascular surgery, OhioPrimary
- Massachusetts license
- New York license
- New Jersey license
Clinical focus
Dmand AI lists amputation, blood vessel access for dialysis, chronic skin ulcer, heart device and aorta surgery, lymphedema, peripheral vascular disease and varicose veins among the conditions Dr. Kassavin treats.
Vascular surgeons near Dr. Kassavin
Counts of vascular 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. Daniel S. Kassavin billed Medicare for 213 services in 2024
CMS data shows 213 Medicare services from Dr. Kassavin across 8 procedure codes in 2024, for 141 Medicare patients. Medicare paid $9,283 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Kassavin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1152024: 1215%
- Tests and treatments
- 2023: 532024: 7440%
- Imaging
- 2023: 182024: 18No change
Dr. Kassavin compared with the Massachusetts median for vascular surgeons, 2024
- Dr. Kassavin
- Massachusetts median
- Medicare services
- 213vs 79873% below
- Medicare patients
- 141vs 50872% below
- Part D claims
- 181vs 424.3 times
Medians across 137 vascular surgeons in Massachusetts with Dmand AI profiles that report each measure.
Dr. Kassavin'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. Kassavin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kassavin and other vascular surgeons in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel S. Kassavin treated 141 Medicare patients in 2024, average age 71
CMS counts 141 Medicare patients who saw Dr. Kassavin in 2024. The largest group is 65 to 74, with 67 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 64% are also on Medicaid. Their average risk score is 2.73, 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. Kassavin's median patient age at 62, with 55% women.
Dr. Kassavin's Medicare patients by age, 2024
Dr. Kassavin's Medicare patients by sex, 2024
- Women6848%
- Men7352%
Chronic conditions among Dr. Kassavin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Diabetes52%
- Ischemic heart disease43%
- Chronic kidney disease38%
- Arthritis36%
- Mood disorders35%
- Anxiety34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kassavin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel S. Kassavin wrote 208 Medicare Part D claims in 2024
In 2024, Dr. Kassavin wrote 208 Medicare Part D claims for 59 patients. 83% of them were for generic drugs. CMS names the drug for 181 of them, across 6 drugs with 11 or more claims each, at $18,912 in total drug cost. In 2023, CMS named 37 claims across 2 drugs.
Dr. Kassavin's Part D claims by kind of drug, 2024
- Generic172 claims83%
- Brand-name36 claims17%
Dr. Kassavin'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: 372024: 181389%
Drugs named by CMS: 6 in 2024, 2 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. Daniel S. Kassavin ranks in the 70th percentile for removal of tissue in Medicare
Dr. Kassavin accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kassavin as offering telehealth. CMS counts 22 procedures of removal of tissue by Dr. Kassavin, more than 70% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Kassavin ranks in Medicare procedure volume
- Removal of tissue
- 70th percentile22 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Leg revascularization (restoring blood flow): 1 to 10 procedures (CMS shows small counts as a range)
Varicose vein removal: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Daniel S. Kassavin has 8 publications on record
Dmand AI links 8 papers to Dr. Kassavin, published from 2010 to 2016. The most frequent topics are Endovascular Procedures, Prosthesis Design and Stents. Dr. Kassavin has published most often in J Vasc Surg. Dr. Kassavin's most frequent co-authors are George S. Constantinopoulos, MD, Kwame S. Amankwah, MD and Keith Don Calligaro, MD.
Topics Dr. Kassavin writes about most
- Endovascular Procedures
- Prosthesis Design
- Stents
- Tomography, X-Ray Computed
Dr. Kassavin's most frequent co-authors
- George S. Constantinopoulos, MD2 shared papers
- Kwame S. Amankwah, MD1 shared paper
- Keith Don Calligaro, MD1 shared paper
Recent publications by Dr. Kassavin
Vasc Endovascular Surg
J Endovasc Ther
See who Dr. Kassavin researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kassavin works with, so you can find a warm path to the right vascular surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Daniel S. Kassavin received $6,313 in industry payments from 2016 to 2025
CMS Open Payments shows 74 general payments to Dr. Kassavin from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 49% of the total. Abbott Laboratories paid the most, $1,664.
General payments to Dr. Kassavin by program year, 2016 to 2025
General payments to Dr. Kassavin by kind, 2016 to 2025
- Food and beverage$3,07149%
- Travel and lodging$2,44239%
- Consulting fees$80013%
Companies that paid Dr. Kassavin 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. Daniel S. Kassavin graduated from SUNY Downstate Health Sciences University
Dr. Kassavin graduated from SUNY Downstate Health Sciences University in 2006.
- Medical school
- Board certified in surgery
- Board certified in vascular surgery
Source: Dmand AI Professional Profile Data
Dr. Daniel S. Kassavin accepts plans from 15 insurance carriers
Dr. Kassavin is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- Cigna
- HCSC
- Aspirus Health Plan
- +7 more carriersWith a free account
Plan types Dr. Kassavin accepts, by number of carriers
- PPO10
- HMO9
- Medicare9
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Daniel S. Kassavin'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)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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Daniel S. Kassavin
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. Daniel S. Kassavin's NPI number?
Dr. Daniel S. Kassavin's NPI number is 1144428103. It was assigned on July 10, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel S. Kassavin?
Dr. Daniel S. Kassavin is a vascular surgeon in Cambridge, Massachusetts. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).
Where does Dr. Daniel S. Kassavin practice?
Dr. Kassavin practices at 1493 Cambridge Street, Cambridge, MA 02139. Dr. Kassavin's primary practice is CHA Cambridge Hospital in Cambridge, Massachusetts, part of Cambridge Health Alliance.
What is Dr. Daniel S. Kassavin's office phone number?
The practice phone on file for Dr. Kassavin is (617) 665-1000.
What is Dr. Daniel S. Kassavin's medical license number?
Dr. Kassavin's Ohio license number on file is 35.127258, one of the licenses on file in 4 states.
Which states has Dr. Daniel S. Kassavin been licensed in?
Dmand AI has state licenses on file for Dr. Kassavin in Ohio (2015 to 2022), Massachusetts (since 2026), New York (2011 to 2016) and New Jersey (2007 to 2011).
Which hospitals is Dr. Daniel S. Kassavin affiliated with?
Dr. Kassavin practices at CHA Cambridge Hospital in Cambridge, Massachusetts.
What medical group is Dr. Daniel S. Kassavin part of?
Dr. Kassavin is linked to Cambridge Health Alliance.
Does Dr. Daniel S. Kassavin accept Medicare?
Yes. CMS data shows Dr. Kassavin billed Medicare for 213 services in 2024, and Dr. Kassavin accepts Medicare assignment.
Does Dr. Daniel S. Kassavin offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Kassavin as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Daniel S. Kassavin see?
CMS counts 141 Medicare patients who saw Dr. Kassavin in 2024, with an average age of 71.
Is Dr. Daniel S. Kassavin board certified?
Yes. Dr. Kassavin is board certified in surgery by the American Board of Surgery.
What services does Dr. Daniel S. Kassavin bill to Medicare?
In 2024, Dr. Kassavin's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99203) and office visit, established patient (99213).
Where did Dr. Daniel S. Kassavin go to medical school?
Dr. Kassavin graduated from SUNY Downstate Health Sciences University in 2006.
What drugs does Dr. Daniel S. Kassavin prescribe most?
In 2024 Medicare Part D data, Dr. Kassavin's most prescribed drugs by claims were Cilostazol, Xarelto and Clopidogrel.
Has Dr. Daniel S. Kassavin received payments from drug or device companies?
CMS Open Payments shows $6,313 in general payments to Dr. Kassavin from 19 companies from 2016 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Daniel S. Kassavin been practicing?
Dr. Kassavin graduated from medical school in 2006, 20 years ago.
Does Dr. Daniel S. Kassavin do research?
Dmand AI links 8 publications to Dr. Kassavin, published from 2010 to 2016.
Who does Dr. Daniel S. Kassavin publish with?
Dr. Kassavin's most frequent co-authors are George S. Constantinopoulos, MD (2 shared papers), Kwame S. Amankwah, MD (1 shared paper) and Keith Don Calligaro, MD (1 shared paper).
What insurance does Dr. Daniel S. Kassavin accept?
Dr. Kassavin is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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