Dr. Carolyn Cao, MD
- Medicare services, 2024
- 33
- Medicare patients, 2024
- 35
- Part D claims, 2024
- 174
- Hospital affiliations
- 2
- Industry payments
- $235
- Practice address
- 1725 W Harrison, Chicago, IL 60612
- Practice phone
- Call (312) 563-2880
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rush SurgiCenter - Chicago
Surgery Center - Medicare-Certified · Chicago, Illinois
Find Dr. Cao's professional email, personal email and mobile number
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Dr. Carolyn Cao is an internist in Chicago, Illinois
Dr. Cao practices at Rush SurgiCenter - Chicago in Chicago, Illinois.
Dr. Cao's NPI, 1598227068, was assigned on April 3, 2019. Dr. Cao graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2019. Dr. Cao holds Illinois license 036.167621.
- NPI
- 1598227068NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416281480
- NPI enumeration date
- April 3, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (312) 563-2880
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Carolyn Cao practices at Rush SurgiCenter - Chicago in Chicago, Illinois
Dr. Cao's primary practice is Rush SurgiCenter - Chicago, at 1725 W Harrison, Chicago, IL 60612. The practice phone is (312) 563-2880.
- Rush SurgiCenter - Chicago1725 W Harrison, Chicago, IL 60612Phone(312) 563-2880
Source: Dmand AI Affiliation Data
Dr. Carolyn Cao is affiliated with 4 sites of care and 1 medical group
Dr. Cao's primary practice is Rush SurgiCenter - Chicago in Chicago, Illinois. Dr. Cao is also affiliated with Rush University Medical Center. The medical group on file is Rush University Internists. Dmand AI also links Dr. Cao to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Carolyn Cao's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cao practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rush SurgiCenter - Chicago | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Carolyn Cao is one of 5,652 internists in Illinois
Internal medicine is Dr. Cao's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Cao is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Cao
Counts of internists 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. Carolyn Cao billed Medicare for 33 services in 2024
CMS data shows 33 Medicare services from Dr. Cao across 2 procedure codes in 2024, all of them office visits, for 35 Medicare patients. Medicare paid $3,419 for them. Every service was in an office.
Dr. Cao compared with the Illinois median for internists, 2024
- Dr. Cao
- Illinois median
- Medicare services
- 33vs 56694% below
- Medicare patients
- 35vs 20883% below
- Part D claims
- 25vs 28491% below
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Cao'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. Carolyn Cao treated 35 Medicare patients in 2024, average age 71
CMS counts 35 Medicare patients who saw Dr. Cao in 2024. The largest group is 65 to 74, with 18 patients. 51% of them have high cholesterol, and 49% have high blood pressure. Their average risk score is 0.78, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Cao's median patient age at 36, with 61% women.
Dr. Cao's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Cao's Medicare patients by sex, 2024
- Women1749%
- Men1851%
Chronic conditions among Dr. Cao's Medicare patients, 2024
- High cholesterol51%
- High blood pressure49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cao's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Carolyn Cao wrote 174 Medicare Part D claims in 2024
In 2024, Dr. Cao wrote 174 Medicare Part D claims for 45 patients. 91% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $102 in total drug cost. In 2023, CMS named 137 claims across 9 drugs.
Dr. Cao's Part D claims by kind of drug, 2024
- Generic158 claims91%
- Brand-name and other16 claims9%
Dr. Cao'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1372024: 2582%
Drugs named by CMS: 2 in 2024, 9 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
Dr. Carolyn Cao offers telehealth to Medicare patients
Dr. Cao accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Cao as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Carolyn Cao received $235 in industry payments in 2024
CMS Open Payments shows 2 general payments to Dr. Cao from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $235.
Companies that paid Dr. Cao the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Carolyn Cao graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Cao graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Carolyn Cao'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Carolyn Cao
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. Carolyn Cao's NPI number?
Dr. Carolyn Cao's NPI number is 1598227068. It was assigned on April 3, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Carolyn Cao?
Dr. Carolyn Cao is an internist in Chicago, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Carolyn Cao practice?
Dr. Cao practices at 1725 W Harrison, Chicago, IL 60612. Dr. Cao's primary practice is Rush SurgiCenter - Chicago in Chicago, Illinois. Dmand AI also links Dr. Cao to 1 hospital and 1 group practice or clinic.
What is Dr. Carolyn Cao's office phone number?
The practice phone on file for Dr. Cao is (312) 563-2880.
What is Dr. Carolyn Cao's medical license number?
Dr. Cao holds Illinois license 036.167621.
Which hospitals is Dr. Carolyn Cao affiliated with?
Dr. Cao is affiliated with Rush University Medical Center. Dmand AI links Dr. Cao to 1 more hospital.
What medical group is Dr. Carolyn Cao part of?
Dr. Cao is linked to Rush University Internists.
Does Dr. Carolyn Cao accept Medicare?
Yes. CMS data shows Dr. Cao billed Medicare for 33 services in 2024, and Dr. Cao accepts Medicare assignment.
Does Dr. Carolyn Cao offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Cao as offering telehealth services.
How many Medicare patients does Dr. Carolyn Cao see?
CMS counts 35 Medicare patients who saw Dr. Cao in 2024, with an average age of 71.
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What services does Dr. Carolyn Cao bill to Medicare?
In 2024, Dr. Cao's most billed Medicare services were office visit, established patient (99214) and office visit, new patient (99204).
Where did Dr. Carolyn Cao go to medical school?
Dr. Cao graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2019.
What drugs does Dr. Carolyn Cao prescribe most?
In 2024 Medicare Part D data, Dr. Cao's most prescribed drugs by claims were Atorvastatin Calcium and Metformin HCl.
Has Dr. Carolyn Cao received payments from drug or device companies?
CMS Open Payments shows $235 in general payments to Dr. Cao from 1 company from 2024 to 2024. The largest total came from Novo Nordisk Inc.
How long has Dr. Carolyn Cao been practicing?
Dr. Cao graduated from medical school in 2019, 7 years ago.
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