Dr. Thomas John Chorba, MD
- Medicare services, 2024
- 179
- Medicare patients, 2024
- 58
- Part D claims, 2024
- 1,671
- Hospital affiliations
- 2
- Industry payments
- $397
- Practice address
- 2650 Ridge Ave, Evanston, IL 60201
- Practice phone
- Call (847) 570-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chorba's professional email, personal email and mobile number
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Dr. Thomas John Chorba is a general surgeon in Evanston, Illinois
Dr. Chorba practices at Evanston Hospital in Evanston, Illinois, part of Endeavor Health.
Dr. Chorba's NPI, 1134174758, was assigned on May 23, 2006. Dr. Chorba graduated from Loyola University of Chicago, Stritch School of Medicine in 1973. Dr. Chorba holds Illinois license 036050009.
- NPI
- 1134174758NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052436276
- NPI enumeration date
- May 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 570-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 79
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas John Chorba practices at Evanston Hospital in Evanston, Illinois
Dr. Chorba's primary practice is Evanston Hospital, at 2650 Ridge Ave, Evanston, IL 60201 in Cook County. The practice phone is (847) 570-2000.
- Evanston Hospital2650 Ridge Ave, Evanston, IL 60201 · Cook CountyPhone(847) 570-2000
Source: Dmand AI Affiliation Data
Dr. Thomas John Chorba is affiliated with 3 sites of care
Dr. Chorba's primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dr. Chorba is also affiliated with Saint Francis Hospital - Evanston. Dmand AI also links Dr. Chorba to 1 more physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas John Chorba's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chorba practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Evanston Hospital | 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 Chorba is one of 1,217 general surgeons in Illinois
Surgery is Dr. Chorba's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Chorba is licensed in Illinois.
Specialties and state licenses
- Surgery, IllinoisPrimary
General surgeons near Dr. Chorba
Counts of general surgeons 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. Thomas John Chorba billed Medicare for 179 services in 2024
CMS data shows 179 Medicare services from Dr. Chorba across 2 procedure codes in 2024, all of them office visits, for 58 Medicare patients. Medicare paid $12,204 for them. Every service was in an office.
Dr. Chorba's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1482024: 17921%
Dr. Chorba compared with the Illinois median for general surgeons, 2024
- Dr. Chorba
- Illinois median
- Medicare services
- 179vs 1948% below
- Medicare patients
- 58vs 14460% below
- Part D claims
- 1,270vs 2845.4 times
Medians across 1,031 general surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Chorba'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chorba and other general surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas John Chorba treated 58 Medicare patients in 2024, average age 74
CMS counts 58 Medicare patients who saw Dr. Chorba in 2024. The largest group is 65 to 74, with 25 patients. 69% of them have high blood pressure, and 59% have arthritis. 41% are also on Medicaid. Their average risk score is 1.44, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chorba's median patient age at 63, with 45% women.
Dr. Chorba's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chorba's Medicare patients by sex, 2024
- Women2747%
- Men3153%
Chronic conditions among Dr. Chorba's Medicare patients, 2024
- High blood pressure69%
- Arthritis59%
- High cholesterol53%
- Diabetes43%
- Anxiety40%
- Mood disorders24%
- Depression21%
- Atrial fibrillation19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chorba's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas John Chorba wrote 1,671 Medicare Part D claims in 2024
In 2024, Dr. Chorba wrote 1,671 Medicare Part D claims for 102 patients. 92% of them were for generic drugs. CMS names the drug for 1,270 of them, across 38 drugs with 11 or more claims each, at $36,917 in total drug cost. In 2023, CMS named 1,252 claims across 35 drugs.
Dr. Chorba's Part D claims by kind of drug, 2024
- Generic1,533 claims92%
- Brand-name125 claims7%
- Other13 claims1%
Dr. Chorba'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.
Drug classes CMS tracks in Dr. Chorba's Part D claims, 2024
- Opioids20%330 of 1,671 claims
- Antibiotics4%73 of 1,671 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,2522024: 1,2701%
Drugs named by CMS: 38 in 2024, 35 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
How Dr. Thomas John Chorba takes part in Medicare
Dr. Chorba accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Thomas John Chorba received $397 in industry payments from 2016 to 2018
CMS Open Payments shows 16 general payments to Dr. Chorba from 4 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $345.
General payments to Dr. Chorba by program year, 2016 to 2018
Companies that paid Dr. Chorba the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas John Chorba graduated from Loyola University of Chicago, Stritch School of Medicine
Dr. Chorba graduated from Loyola University of Chicago, Stritch School of Medicine in 1973.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Thomas John Chorba'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)Doctors and Clinicians Utilization Data (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. Thomas John Chorba
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 Chorba's NPI number?
Dr. Thomas John Chorba's NPI number is 1134174758. It was assigned on May 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas John Chorba?
Dr. Thomas John Chorba is a general surgeon in Evanston, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Thomas John Chorba practice?
Dr. Chorba practices at 2650 Ridge Ave, Evanston, IL 60201. Dr. Chorba's primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dmand AI also links Dr. Chorba to 1 physician office.
What is Dr. Thomas John Chorba's office phone number?
The practice phone on file for Dr. Chorba is (847) 570-2000.
What is Dr. Thomas John Chorba's medical license number?
Dr. Chorba holds Illinois license 036050009.
Which hospitals is Dr. Thomas John Chorba affiliated with?
Dr. Chorba practices at Evanston Hospital in Evanston, Illinois. Dr. Chorba is also affiliated with Saint Francis Hospital - Evanston.
Does Dr. Thomas John Chorba accept Medicare?
Yes. CMS data shows Dr. Chorba billed Medicare for 179 services in 2024, and Dr. Chorba accepts Medicare assignment.
How many Medicare patients does Dr. Thomas John Chorba see?
CMS counts 58 Medicare patients who saw Dr. Chorba in 2024, with an average age of 74.
What services does Dr. Thomas John Chorba bill to Medicare?
In 2024, Dr. Chorba's most billed Medicare services were office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Thomas John Chorba go to medical school?
Dr. Chorba graduated from Loyola University of Chicago, Stritch School of Medicine in 1973.
Show 3 more questionsShow fewer questions
What drugs does Dr. Thomas John Chorba prescribe most?
In 2024 Medicare Part D data, Dr. Chorba's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Alprazolam and Diazepam.
Has Dr. Thomas John Chorba received payments from drug or device companies?
CMS Open Payments shows $397 in general payments to Dr. Chorba from 4 companies from 2016 to 2018. The largest total came from Stryker Corporation.
How long has Dr. Thomas John Chorba been practicing?
Dr. Chorba graduated from medical school in 1973, 53 years ago.
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