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Dr. Kenneth Clayton Sassower, MD
NPI1619968179
- Medicare services, 2024
- 192
- Medicare patients, 2024
- 212
- Part D claims, 2024
- 1,521
- Publications
- 6
- Industry payments
- $102
- Practice address
- 55 Fruit St, 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
Massachusetts General Hospital
Boston, Massachusetts
Find Dr. Sassower's professional email, personal email and mobile number
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Dr. Kenneth Clayton Sassower is a neurologist in Boston, Massachusetts
Dr. Sassower practices at Massachusetts General Hospital in Boston, Massachusetts.
Dr. Sassower's NPI, 1619968179, was assigned on November 3, 2005. Dr. Sassower holds Massachusetts license 152034.
NPI and contact details
- NPI
- 1619968179NPI Registry (opens in a new tab)
- NPI enumeration date
- November 3, 2005
- NPI status
- Active
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Kenneth Clayton Sassower practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Sassower's primary practice is Massachusetts General Hospital, at 55 Fruit St, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit St, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Kenneth Clayton Sassower is affiliated with 3 sites of care and 2 medical groups
Dr. Sassower's primary practice is Massachusetts General Hospital in Boston, Massachusetts. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Sassower to 2 more group practices and clinics and 1 medical group, each named with a free account.
Massachusetts General HospitalPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Kenneth Clayton Sassower's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sassower 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 |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kenneth Clayton Sassower is one of 806 neurologists in Massachusetts
Neurology is Dr. Sassower's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Sassower is licensed in Massachusetts.
Specialties and state licenses
- Neurology, MassachusettsPrimary
Neurologists near Dr. Sassower
Counts of neurologists 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. Kenneth Clayton Sassower billed Medicare for 192 services in 2024
CMS data shows 192 Medicare services from Dr. Sassower across 5 procedure codes in 2024, for 212 Medicare patients. Medicare paid $17,904 for them.
Medicare services, 2024192
Medicare patients212
Paid by Medicare$17,904
Procedure codes5
Dr. Sassower's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3202024: 12362%
- Tests and treatments
- 2023: 2992024: 6977%
Where Dr. Sassower's Medicare services took place, 2024
- In an office17390%
- In a facility1910%
Dr. Sassower compared with the Massachusetts median for neurologists, 2024
- Dr. Sassower
- Massachusetts median
- Medicare services
- 192vs 31439% below
- Medicare patients
- 212vs 17819% above
- Part D claims
- 1,227vs 2704.5 times
Medians across 741 neurologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Sassower'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. Kenneth Clayton Sassower treated 212 Medicare patients in 2024, average age 68
CMS counts 212 Medicare patients who saw Dr. Sassower in 2024. The largest group is 65 to 74, with 82 patients. 67% of them have high cholesterol, and 61% have high blood pressure. 32% are also on Medicaid. Their average risk score is 1.54, 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. Sassower's median patient age at 64, with 41% women.
Medicare patients, 2024212
Average age68
Average risk score1.54
Also on Medicaid32%
Dr. Sassower's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Sassower's Medicare patients by sex, 2024
- Women12258%
- Men9042%
Chronic conditions among Dr. Sassower's Medicare patients, 2024
- High cholesterol67%
- High blood pressure61%
- Arthritis56%
- Anxiety52%
- Mood disorders50%
- Depression42%
- Ischemic heart disease28%
- Osteoporosis23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sassower's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women41%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Kenneth Clayton Sassower wrote 1,521 Medicare Part D claims in 2024
In 2024, Dr. Sassower wrote 1,521 Medicare Part D claims for 222 patients. 87% of them were for generic drugs. CMS names the drug for 1,227 of them, across 38 drugs with 11 or more claims each, at $1,060,770 in total drug cost. In 2023, CMS named 2,064 claims across 58 drugs.
Part D claims, 20241,521
Drugs named by CMS38
Total drug cost$1.1M
Part D patients222
Dr. Sassower's Part D claims by kind of drug, 2024
- Generic1,324 claims87%
- Brand-name197 claims13%
Dr. Sassower'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.
Drug classes CMS tracks in Dr. Sassower's Part D claims, 2024
- Opioids5%74 of 1,521 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,0642024: 1,22741%
Drugs named by CMS: 38 in 2024, 58 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
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Dr. Kenneth Clayton Sassower has 6 publications on record
Dmand AI links 6 papers to Dr. Sassower, published from 2010 to 2020. The most frequent topics are Sleep Wake Disorders, Polysomnography and Sleep. Dr. Sassower's most frequent co-authors are Lauren M. Allister, MD, Dimitrios Arkilo, MD and Keith Henry Chiappa, MD.
Papers6
Years published2010 to 2020
Dr. Sassower's papers by year, 2010 to 2020
Topics Dr. Sassower writes about most
- Sleep Wake Disorders
- Polysomnography
- Sleep
Dr. Sassower's most frequent co-authors
- Lauren M. Allister, MD1 shared paper
- Dimitrios Arkilo, MD1 shared paper
- Keith Henry Chiappa, MD1 shared paper
Recent publications by Dr. Sassower
J Child Adolesc Psychopharmacol
Autistic DisorderChild Development Disorders, PervasiveDevelopmental Disabilities
Consciousness DisordersDiagnosis, DifferentialGastrointestinal Diseases
See who Dr. Sassower researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sassower works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Kenneth Clayton Sassower received $102 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Sassower from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Purdue Pharma L.P. paid the most, $102.
Companies that paid Dr. Sassower the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Kenneth Clayton Sassower'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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) |
| 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. Kenneth Clayton Sassower
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. Kenneth Clayton Sassower's NPI number?
Dr. Kenneth Clayton Sassower's NPI number is 1619968179. It was assigned on November 3, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Kenneth Clayton Sassower?
Dr. Kenneth Clayton Sassower is a neurologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Kenneth Clayton Sassower practice?
Dr. Sassower practices at 55 Fruit St, Boston, MA 02114. Dr. Sassower's primary practice is Massachusetts General Hospital in Boston, Massachusetts. Dmand AI also links Dr. Sassower to 2 group practices and clinics and 1 medical group.
What is Dr. Kenneth Clayton Sassower's office phone number?
The practice phone on file for Dr. Sassower is (617) 726-2000.
What is Dr. Kenneth Clayton Sassower's medical license number?
Dr. Sassower holds Massachusetts license 152034.
What medical group is Dr. Kenneth Clayton Sassower part of?
Dr. Sassower is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Sassower to 1 more medical group.
Does Dr. Kenneth Clayton Sassower accept Medicare?
Yes. CMS data shows Dr. Sassower billed Medicare for 192 services in 2024.
How many Medicare patients does Dr. Kenneth Clayton Sassower see?
CMS counts 212 Medicare patients who saw Dr. Sassower in 2024, with an average age of 68.
What services does Dr. Kenneth Clayton Sassower bill to Medicare?
In 2024, Dr. Sassower's most billed Medicare services were office visit, established patient (99214), nerve and brain test (95800) and care management and other visits (99443).
What drugs does Dr. Kenneth Clayton Sassower prescribe most?
In 2024 Medicare Part D data, Dr. Sassower's most prescribed drugs by claims were Zolpidem Tartrate, Clonazepam and Lorazepam.
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Has Dr. Kenneth Clayton Sassower received payments from drug or device companies?
CMS Open Payments shows $102 in general payments to Dr. Sassower from 1 company from 2016 to 2016. The largest total came from Purdue Pharma L.P.
How long has Dr. Kenneth Clayton Sassower been practicing?
Dr. Sassower graduated from medical school in 1982, 44 years ago.
Does Dr. Kenneth Clayton Sassower do research?
Dmand AI links 6 publications to Dr. Sassower, published from 2010 to 2020.
Who does Dr. Kenneth Clayton Sassower publish with?
Dr. Sassower's most frequent co-authors are Lauren M. Allister, MD (1 shared paper), Dimitrios Arkilo, MD (1 shared paper) and Keith Henry Chiappa, MD (1 shared paper).
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