Mark T. Upton, M.D.
Cardiovascular Disease Physician · Chicago, IL
Mark T. Upton, M.D. is a cardiovascular disease physician with a practice address in Chicago, Illinois, and NPI 1114993250, issued on Feb 28, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mark T. Upton
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- Practice location
- 233 E Erie St, Chicago, IL 60611
- Phone
- (312) 573-0973
- Enumerated
- Feb 28, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (312) 573-0973
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,073 in Illinois → Look up another NPI →
Also registered at 233 E Erie St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark T. Upton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
30 Medicare Part D claims, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Mark T. Upton among 1,073 cardiovascular disease physician records in Illinois
Mark T. Upton, M.D. is one of 1,073 cardiovascular disease physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 50% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2026 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Illinois
There are 1,073 cardiovascular disease physician records in Illinois.
All 1,073 in Illinois → Every provider in Chicago → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Perla Benrubi, MDChicago, IL 606111659367670
- Robert Bonow, MDChicago, IL 606111447227269
- Kenneth Brin, M.D.Chicago, IL 606111013982099
- Joseph Cytron, MDChicago, IL 606111518920560
- Dipankar Dasgupta, MDChicago, IL 606111700879236
- Richardo Davison, MDChicago, IL 606111144283078
- Pablo Denes, MDChicago, IL 606111710941992
- Daniel Fintel, MDChicago, IL 606111992740328
Common questions
What is Mark T. Upton, M.D.'s NPI number?
Mark T. Upton, M.D.'s National Provider Identifier (NPI) is 1114993250, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark T. Upton, M.D. located?
The NPPES record lists a practice address at 233 E Erie St, Chicago, IL, 60611. Phone: (312) 573-0973. Providers update this record themselves, so call before visiting.
How can I verify Mark T. Upton, M.D.'s license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark T. Upton, M.D. prescribe under Medicare Part D?
In 2024, Mark T. Upton, M.D. had 30 Medicare Part D claims; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.