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Dr. Thomas John Masaryk, MD
NPI1912961087
- Medicare services, 2023
- 40
- Part D claims, 2017
- 19
- Publications
- 93
- Hospital affiliations
- 1
- Industry payments
- $2,552
- Practice address
- 9500 Euclid Avenue, Cleveland, OH 44195
- Practice phone
- Call (216) 952-9829
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Masaryk'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. Thomas John Masaryk is a diagnostic radiologist in Cleveland, Ohio
Dr. Masaryk practices at Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation.
Dr. Masaryk's NPI, 1912961087, was assigned on April 14, 2006. Dr. Masaryk graduated from University of Toledo College of Medicine and Life Sciences in 1981. Dr. Masaryk holds Ohio license 35047721M.
NPI and contact details
- NPI
- 1912961087NPI Registry (opens in a new tab)
- NPI enumeration date
- April 14, 2006
- NPI status
- Active
- Practice phone
- (216) 952-9829
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Thomas John Masaryk practices at Cleveland Clinic Main Campus in Cleveland, Ohio
Dr. Masaryk's primary practice is Cleveland Clinic Main Campus, at 9500 Euclid Avenue, Cleveland, OH 44195 in Cuyahoga County. The practice phone is (216) 952-9829.
- Cleveland Clinic Main Campus9500 Euclid Avenue, Cleveland, OH 44195 · Cuyahoga CountyPhone(216) 952-9829
Source: Dmand AI Affiliation Data
Dr. Thomas John Masaryk is affiliated with 3 sites of care and 1 medical group
Dr. Masaryk's primary practice is Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation. The medical group on file is Cleveland Clinic Lou Ruvo Center for Brain Health. Dmand AI also links Dr. Masaryk to 2 more clinical labs, each named with a free account. Dr. Masaryk's employer is on file too: a hospital.
Cleveland Clinic Lou Ruvo Center for Brain Health2 clinical labsNames with a free accountEmployer: hospitalName with a free account
See all 4 affiliations for Dr. MasarykSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas John Masaryk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Masaryk practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cleveland Clinic Main Campus | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas John Masaryk is one of 1,478 diagnostic radiologists in Ohio
Diagnostic radiology is Dr. Masaryk's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Masaryk is board certified in diagnostic radiology by the American Board of Radiology. Dmand AI has Dr. Masaryk's licenses on file in 14 states: Ohio, Hawaii, Florida, Indiana, Michigan, Nevada, Pennsylvania, Idaho, New York, Tennessee, Montana, New Jersey, Kentucky and Illinois.
Specialties and state licenses
- Diagnostic radiology, OhioPrimary
- Hawaii license
- Florida license
- Indiana license
- Michigan license
- Nevada license
- Pennsylvania license
- Idaho license
- New York license
- Tennessee license
- Montana license
- New Jersey license
- Kentucky license
- Illinois license
Diagnostic radiologists near Dr. Masaryk
Counts of diagnostic radiologists with a Dmand AI profile, by place and practice. Each opens the list.
1,478diagnostic radiologists in Ohio360diagnostic radiologists in Cleveland152diagnostic radiologists at Cleveland Clinic Main Campus
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas John Masaryk billed Medicare for 40 services in 2023
CMS data shows 40 Medicare services from Dr. Masaryk across 3 procedure codes in 2023. Medicare paid $7,263 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202340
Paid by Medicare$7,263
Procedure codes3
Dr. Masaryk's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Surgery
- 2022: 172023: 2547%
- Tests and treatments
- 2022: 212023: 1529%
Dr. Masaryk compared with the Ohio median for diagnostic radiologists, 2023
- Dr. Masaryk
- Ohio median
- Medicare services
- 40vs 1,76898% below
- Part D claims
- 19vs 1712% above
Medians across 1,619 diagnostic radiologists in Ohio with Dmand AI profiles that report each measure.
Dr. Masaryk's most billed Medicare procedure codes, 2023
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Masaryk and other diagnostic radiologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas John Masaryk's patients have a median age of 35
Across all payers, Dmand AI patient panel data puts Dr. Masaryk's median patient age at 35, with 100% women.
Dr. Masaryk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 35
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Thomas John Masaryk wrote 19 Medicare Part D claims in 2017
In 2017, Dr. Masaryk wrote 19 Medicare Part D claims. They cover 1 drug, with $242 in total drug cost.
Part D claims, 201719
Drugs named by CMS1
Total drug cost$242
Dr. Masaryk's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Thomas John Masaryk has 93 publications on record
Dmand AI links 93 papers to Dr. Masaryk, published from 2007 to 2020. 2011 was the busiest year, with 12. The most frequent topics are Magnetic Resonance Imaging, Cerebral Angiography and Stents. Dr. Masaryk has published most often in Radiology. Dr. Masaryk's most frequent co-authors are Mark Douglas Bain, MD, Ferdinand K. Hui, MD and Joseph C. Masdeu, MD, PhD.
Papers93
Years published2007 to 2020
Dr. Masaryk's papers by year, 2010 to 2020
Topics Dr. Masaryk writes about most
- Magnetic Resonance Imaging
- Cerebral Angiography
- Stents
- Intracranial Aneurysm
- Embolization, Therapeutic
- Diagnosis, Differential
- Diagnostic Imaging
- Predictive Value of Tests
Dr. Masaryk's most frequent co-authors
- Mark Douglas Bain, MD13 shared papers
- Ferdinand K. Hui, MD11 shared papers
- Joseph C. Masdeu, MD, PhD9 shared papers
Recent publications by Dr. Masaryk
J Neurointerv Surg
Aneurysm, RupturedBlood Vessel ProsthesisCerebral Angiography
Interv Neuroradiol
CathetersCerebral AngiographyDevice Removal
Angiography, Digital SubtractionCerebral AngiographyIntracranial Aneurysm
See who Dr. Masaryk researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Masaryk works with, so you can find a warm path to the right diagnostic radiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas John Masaryk received $2,552 in industry payments from 2016 to 2025
CMS Open Payments shows 28 general payments to Dr. Masaryk from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 81% of the total. Siemens Medical Solutions USA, Inc. paid the most, $1,147.
General payments to Dr. Masaryk by program year, 2016 to 2025
General payments to Dr. Masaryk by kind, 2016 to 2025
$2.6Kin total
- Food and beverage$2,07881%
- Travel and lodging$47419%
Companies that paid Dr. Masaryk 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. Thomas John Masaryk has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Masaryk, most recently America's Top Doctors in 2014.
Awards and honors for Dr. Masaryk
- 2014
- America's Top Doctors
- 2013
- CMS Stage 1 EHR
- 2009
- Northern Ohio Live
Source: Dmand AI Professional Profile Data
Dr. Thomas John Masaryk graduated from University of Toledo College of Medicine and Life Sciences
Dr. Masaryk graduated from University of Toledo College of Medicine and Life Sciences in 1981.
- Medical school
- Board certified in diagnostic radiology
- Board certified in neuroradiology
Source: Dmand AI Professional Profile Data
Dr. Thomas John Masaryk accepts plans from 2 insurance carriers
Dr. Masaryk is in network with 2 carriers, including Cigna and CareSource. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Cigna
- CareSource
Plan types Dr. Masaryk accepts, by number of carriers
- Medicare2
- HMO1
- Medicaid1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Thomas John Masaryk'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Thomas John Masaryk
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. Thomas John Masaryk's NPI number?
Dr. Thomas John Masaryk's NPI number is 1912961087. It was assigned on April 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas John Masaryk?
Dr. Thomas John Masaryk is a diagnostic radiologist in Cleveland, Ohio. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Thomas John Masaryk practice?
Dr. Masaryk practices at 9500 Euclid Avenue, Cleveland, OH 44195. Dr. Masaryk's primary practice is Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation. Dmand AI also links Dr. Masaryk to 2 clinical labs.
What is Dr. Thomas John Masaryk's office phone number?
The practice phone on file for Dr. Masaryk is (216) 952-9829.
What is Dr. Thomas John Masaryk's medical license number?
Dr. Masaryk holds Ohio license 35047721M, one of the licenses on file in 14 states.
Which states has Dr. Thomas John Masaryk been licensed in?
Dmand AI has state licenses on file for Dr. Masaryk in Ohio (1982 to 2026), Hawaii (2008 to 2026), Florida (2003 to 2023), Indiana (1997 to 2021), Michigan (2005 to 2021), Nevada (2009 to 2021), Pennsylvania (1997 to 2021), Idaho (2000 to 2020), New York (2001 to 2020), Tennessee (2004 to 2015), Montana (2002 to 2009), New Jersey (2001 to 2009), Kentucky (2001 to 2006) and Illinois (2003 to 2005).
Which hospitals is Dr. Thomas John Masaryk affiliated with?
Dr. Masaryk practices at Cleveland Clinic Main Campus in Cleveland, Ohio.
What medical group is Dr. Thomas John Masaryk part of?
Dr. Masaryk is linked to Cleveland Clinic Lou Ruvo Center for Brain Health.
Does Dr. Thomas John Masaryk accept Medicare?
Yes. CMS data shows Dr. Masaryk billed Medicare for 40 services in 2023.
Is Dr. Thomas John Masaryk board certified?
Yes. Dr. Masaryk is board certified in diagnostic radiology by the American Board of Radiology.
Show 8 more questionsShow fewer questions
What services does Dr. Thomas John Masaryk bill to Medicare?
In 2023, Dr. Masaryk's most billed Medicare services were special service (99152), surgery: heart and blood vessels (36226) and surgery: heart and blood vessels (36224).
Where did Dr. Thomas John Masaryk go to medical school?
Dr. Masaryk graduated from University of Toledo College of Medicine and Life Sciences in 1981.
What drugs does Dr. Thomas John Masaryk prescribe most?
In 2017 Medicare Part D data, Dr. Masaryk's most prescribed drugs by claims were Clopidogrel.
Has Dr. Thomas John Masaryk received payments from drug or device companies?
CMS Open Payments shows $2,552 in general payments to Dr. Masaryk from 5 companies from 2016 to 2025. The largest total came from Siemens Medical Solutions USA, Inc.
How long has Dr. Thomas John Masaryk been practicing?
Dr. Masaryk graduated from medical school in 1981, 45 years ago.
Does Dr. Thomas John Masaryk do research?
Dmand AI links 93 publications to Dr. Masaryk, published from 2007 to 2020.
Who does Dr. Thomas John Masaryk publish with?
Dr. Masaryk's most frequent co-authors are Mark Douglas Bain, MD (13 shared papers), Ferdinand K. Hui, MD (11 shared papers) and Joseph C. Masdeu, MD, PhD (9 shared papers).
What insurance does Dr. Thomas John Masaryk accept?
Dr. Masaryk is in network with 2 carriers, including Cigna and CareSource. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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