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Caroline L Thomas, MD

Anesthesiology · Chicago

NPI 1588058689

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
Not verified
Not the same as out of network.
Office
1
Since medical school
11 years
Graduated 2015

Offices

1 location · University of Chicago · 1,674 clinicians in this group

Looking this up.

Hospitals listed: The University of Chicago Medical Center. That is not proof they admit you there this week.

Plan participation

Not verified

We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Thomas’s office at (888) 824-0200 to ask if they take your plan before you enroll.

State licence records

1 licence

  • Illinois 125071749Temporary Medical Permit · since 2021 · expires 2022-06-30Specialty on the licence: Obstetrical Anesthesia
    CancelledNo board action on this licenceCheck it with the state

We check Colorado, Delaware, Florida, Illinois, Maryland, New Jersey, New York, Tennessee, Texas, Virginia, Washington, plus California above. A state that is not in this list has not been checked, which is not the same as clear.

Hospitals they work in

1 hospital

These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.

  • The University of Chicago Medical CenterChicago, ILAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of The University of Chicago Medicine, which runs 2 hospitalsHome of University of Chicago Comprehensive Cancer Center, a National Cancer Institute designated comprehensive cancer centrePatients rate it 3 of 5 · 73% would definitely recommend it
    Overall rating: 4 of 5 starsWorse than the national rate — Rate of inpatient admissions for patients receiving outpatient chemotherapy: 12.8 (11.3 to 14.4) · 1,420 cases, Jan 2024 – Dec 2024Better than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.474, Oct 2024 – Sep 2025Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.592, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.528, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0.557, Oct 2024 – Sep 2025
See every measure and the patient survey for The University of Chicago Medical Center

Behind the star rating — Deaths: 2 better, 6 the same, 0 worse of 8 measures. Safety: 4 better, 3 the same, 0 worse of 7 measures. Readmissions: 1 better, 4 the same, 5 worse of 10 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at The University of Chicago Medical Center
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits12.8 (11.3 to 14.4) · 1,420 casesWorseJan 2024 – Dec 2024
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.474BetterOct 2024 – Sep 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.592BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.528BetterOct 2024 – Sep 2025
MRSA BacteremiaInfections0.557BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths0.77 (0.02 to 1.52) · 3,148 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.85 (0.66 to 1.03)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths150.76 (121.34 to 180.17) · 308 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths1.3 · 215 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths6.9 · 174 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths11.8 · 96 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths8.1 · 482 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths12.2 · 293 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths9.3 · 511 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.8 · 3,933 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.21 (0.02 to 0.39) · 12,594 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.22 (0.05 to 0.39) · 13,873 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths3.69 (2.22 to 5.17) · 3,511 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths2.21 (1.12 to 3.31) · 1,814 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths1.79 (0.72 to 2.86) · 3,245 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths6.33 (2.99 to 9.68) · 1,713 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths4.82 (2.5 to 7.14) · 1,768 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.45 (0.18 to 2.73) · 1,013 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.43 (0.04 to 0.81) · 11,717 casesNo differentJul 2022 – Jun 2024
SSI - Abdominal HysterectomyInfections0.702No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.907No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits15.5 · 194 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits23.4 · 987 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits28 · 128 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits40.8 · 625 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits36.3 · 312 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits17.4 · 512 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits4.6 (3.8 to 5.6) · 1,420 casesNo differentJan 2024 – Dec 2024
Rate of readmission for CABGUnplanned return visits10.7 · 232 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits18.1 · 393 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits13.2 (10.3 to 16.9) · 1,497 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.8 (0.7 to 1.1) · 812 casesNo differentJan 2024 – Dec 2024

What patients said (1,902 patients answered, 15% of those asked)

Patient survey stars by topic at The University of Chicago Medical Center
Cleanliness2
Nurse communication3
Doctor communication4
Communication about medicines2
Discharge information3
Overall hospital rating3
Quietness4
Recommend hospital4
Share of patients giving the best answer at The University of Chicago Medical Center
Room was "always" clean63%
Nurses "always" communicated well77%
Doctors "always" communicated well80%
Staff "always" explained57%
Yes, staff "did" give patients this information86%
Yes, staff "did" give patients information about help after discharge85%
Doctors "always" explained things so they could understand76%
Doctors "always" listened carefully78%
Doctors "always" treated them with courtesy and respect86%
Patients who gave a rating of "9" or "10" (high)71%
Staff "always" explained new medications72%
Nurses "always" explained things so they could understand74%
Nurses "always" listened carefully75%
Nurses "always" treated them with courtesy and respect83%
"Always" quiet at night62%
"YES", patients would definitely recommend the hospital73%
Staff "always" explained possible side effects43%
Yes, staff "did" give patients information about possible symptoms86%

Original Medicare doctor bills

$9,802

Medicare paid this office $9,802 for 80 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Largest Original Medicare bills
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope26$1,919$74

Who their Medicare patients are

80 Original Medicare patients in 2024. Average age 70 · Women 61% · Also on Medicaid 41% · Health risk score 2.08. Above the middle of the specialty; the typical anesthesiology clinician is at 1.54.

Conditions among them: High blood pressure 75% · Coronary heart disease 48% · Chronic kidney disease 36% · Heart failure 34% · Diabetes 33% · COPD 33% · Depression 28% · Cancer 24% · Atrial fibrillation 24%.

The office billed $105,960, Medicare allowed $12,367 and paid $9,802; for 82 services of 24 kinds.

Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.

Year by year

Original Medicare by year
20248082702.08$105,960$9,802
20237782672.19$105,772$11,060

Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.

Medicaid work

$36,759 in 2024

Medicaid paid $36,759 for 72 billed services this clinician did in 2024, up to 22 people in a month for one service.

Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.

Largest Medicaid services in 2024
Neuraxial labor analgesia/anesthesia for planned vaginal delivery (this includes any repeat subarachnoid needle placement and drug injection and/or any necessary replacement of an epidural catheter during labor)72$36,759
Medicaid work by year
202472122$36,759
2023102120$50,154
202279131$36,707
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
Neuraxial labor analgesia/anesthesia for planned vaginal delivery (this includes any repeat subarachnoid needle placement and drug injection and/or any necessary replacement of an epidural catheter during labor)102$50,154

2022

Largest Medicaid services in 2022
Neuraxial labor analgesia/anesthesia for planned vaginal delivery (this includes any repeat subarachnoid needle placement and drug injection and/or any necessary replacement of an epidural catheter during labor)79$36,707

Drugs they prescribed that Part D paid

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 0% of their 14 Part D prescriptions in 2020. Too few prescriptions to judge: with under about 50 a year, a handful of patients can swing this share.

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
97.7 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI
1588058689
Licence
IL 125.071749Illinois 125071749: Cancelled
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Federal specialty code 207L00000X (207L00000X); Student in a training program (390200000X)
Mailing address
180 Harvester Dr Ste 110, Burr Ridge, IL, 60527
NPI first listed
2015-03-26
NPI last updated
2018-07-01

This is when the NPI record was last certified, not a medical board exam.

Extra NPI addresses: 725 Welch Rd, Palo Alto, CA, 94304