Caroline Thomas, MD
Anesthesiology Physician · Chicago, IL
Caroline Thomas, MD is an anesthesiology physician with a practice address in Chicago, Illinois, and NPI 1588058689, issued on Mar 26, 2015. Check the license (Illinois 125.071749, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Caroline Thomas
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 125.071749 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5841 S Maryland Ave # MC4028, Chicago, IL 60637
- Phone
- (773) 702-6842
- Enumerated
- Mar 26, 2015
- Record last updated
- Jul 1, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (773) 834-0063
- Medicare enrollment
- Enrolled (PECOS I20230215002637); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 2,575 in Illinois → Look up another NPI →
Also registered at 5841 S Maryland Ave # MC4028
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Caroline Thomas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 125.071749Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 97.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University OF ChicagoChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Caroline Thomas among 2,575 anesthesiology physician records in Illinois
Caroline Thomas, MD is one of 2,575 anesthesiology physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 68% of them.
- NPI issued2015 · 68% of these records are older, 30% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2015 · median 2006 among the 1,608 with a school on file
- Record last updated2018 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,113 anesthesiology physician records list a practice address in Chicago
They are 1,113 of the 63,379 NPPES records with a practice address in Chicago, and 2,575 anesthesiology physician records in Illinois.
All 2,575 in Illinois → Every provider in Chicago → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Magdalena Anitescu, MDChicago, IL 606371891850012
- Angela Arndt, M.D.Chicago, IL 606371689632317
- Mark ChaneyChicago, IL 606371346305562
- Frank DupontChicago, IL 606371770578122
- Atul GuptaChicago, IL 606371396791729
- Matthew KaufmannChicago, IL 606371336165109
- Joan Matthews, MDChicago, IL 606371124034533
- Anish OzaChicago, IL 606371518050046
Common questions
What is Caroline Thomas, MD's NPI number?
Caroline Thomas, MD's National Provider Identifier (NPI) is 1588058689, issued on Mar 26, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Caroline Thomas, MD located?
The NPPES record lists a practice address at 5841 S Maryland Ave # MC4028, Chicago, IL, 60637. Phone: (773) 702-6842. Providers update this record themselves, so call before visiting.
How can I verify Caroline Thomas, MD's license?
NPPES lists Illinois license number 125.071749, as entered by the provider. 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.
What is Caroline Thomas, MD's MIPS final score?
The 2023 MIPS final score is 97.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.