Dr. Daniel S. Kassavin, MD

  • Cambridge, MA
  • Vascular surgeon
NPI1144428103PAC ID5395971162
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
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Mobile number
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Social profiles

Primary practice

CHA Cambridge Hospital

Hospital · Cambridge, Massachusetts

See all 2 affiliations

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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 and contact details
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
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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.

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.

See all 2 affiliations for Dr. Kassavin

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.

EHR by site
SiteEHR vendor and product
CHA Cambridge HospitalAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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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, OhioPrimaryLicense 35.127258 · 2015 to 2022 · taxonomy 2086S0129X
  • Massachusetts licenseSince 2026
  • New York license2011 to 2016
  • New Jersey license2007 to 2011

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.

Medicare services, 2024213
Medicare patients141
Paid by Medicare$9,283
Procedure codes8

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.

See all procedures by Dr. Kassavin

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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.

Medicare patients, 2024141
Average age71
Average risk score2.73
Also on Medicaid64%

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

  1. High blood pressure75%
  2. High cholesterol72%
  3. Diabetes52%
  4. Ischemic heart disease43%
  5. Chronic kidney disease38%
  6. Arthritis36%
  7. Mood disorders35%
  8. 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.

Part D claims, 2024208
Drugs named by CMS6
Total drug cost$18,912
Part D patients59

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.

See all prescribing by Dr. Kassavin

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.

Papers8
Years published2010 to 2016

Topics Dr. Kassavin writes about most

  • Endovascular Procedures
  • Prosthesis Design
  • Stents
  • Tomography, X-Ray Computed

Dr. Kassavin's most frequent co-authors

Recent publications by Dr. Kassavin

See all 8 publications and co-authors

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.

How network discovery works

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

$6.3Kin total
  • 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.

See all payments to Dr. Kassavin

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.

  1. Medical schoolSUNY Downstate Health Sciences University
  2. Board certified in surgeryAmerican Board of Surgery
  3. Board certified in vascular surgeryAmerican Board of 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

  1. PPO10
  2. HMO9
  3. Medicare9
  4. POS5
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Daniel S. Kassavin's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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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