Brendan David O'Donnell, MD
Colon & Rectal Surgery Physician · Chicago, IL
Brendan David O'Donnell, MD is a colon & rectal surgery physician with a practice address in Chicago, Illinois, and NPI 1841794021, issued on Mar 21, 2018. Check the license (Illinois 036.165186, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Brendan David O'Donnell
- Credential
- MD
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License number
- 036.165186 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1750 W Harrison St, Chicago, IL 60612
- Phone
- (342) 942-6510
- Enumerated
- Mar 21, 2018
- Record last updated
- Dec 1, 2023
- Medicare enrollment
- Enrolled (PECOS I20240904001526); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2018
- Entity
- Type 1 · individual
8 nearest colon & rectal surgery physician records → All 97 in Illinois → Look up another NPI →
Also registered at 1750 W Harrison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tamara AmponsahEmergency Medicine Physician1821871682
- Maria Charina Benavidez, MDSurgery Physician1528645843
- Dawn Bradly, MDAnatomic Pathology & Clinical Pathology Physician1578729240
- Courtney Camp, RNC, MSN, APNCritical Care Neonatal Nurse Practitioner1790015576
- Talib Chaudhry, MDSurgery Physician1093342446
Verify Brendan David O'Donnell 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 036.165186Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024
28 Medicare Part D claims for 22 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen11 claims
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.
Industry payments in 2024: $627.59
4 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 1,524 providers of this specialty with any payment received $3,468.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Cook CountyChicago, IL
- The Board OF Trustees OF The University OF IllinoisChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brendan David O'Donnell among 97 colon & rectal surgery physician records in Illinois
Brendan David O'Donnell, MD is one of 97 colon & rectal surgery physician records with a practice address in Illinois. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 91% of them.
- NPI issued2018 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2018 · median 2006 among the 73 with a school on file
- Record last updated2023 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Colon & Rectal Surgery Physician providers in Illinois
There are 97 colon & rectal surgery physician records in Illinois.
All 97 in Illinois → Every provider in Chicago → Colon & Rectal Surgery Physician nationwide →
The 8 colon & rectal surgery physician records with the nearest ZIP codes
- Herand AbcarianChicago, IL 606121881792372
- Ariane Abcarian, M.D.Chicago, IL 606121831364272
- Marissa Anderson, M.D.Chicago, IL 606121043539836
- Elisa Bianchi, MDChicago, IL 606121689017303
- Jennifer Blumetti, MDChicago, IL 606121124222054
- Vivek Chaudhry, M.D.Chicago, IL 606121992754766
- Jose CintronChicago, IL 606121891891289
- Gerald GanttChicago, IL 606121386962207
Common questions
What is Brendan David O'Donnell, MD's NPI number?
Brendan David O'Donnell, MD's National Provider Identifier (NPI) is 1841794021, issued on Mar 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Brendan David O'Donnell, MD located?
The NPPES record lists a practice address at 1750 W Harrison St, Chicago, IL, 60612. Phone: (342) 942-6510. Providers update this record themselves, so call before visiting.
How can I verify Brendan David O'Donnell, MD's license?
NPPES lists Illinois license number 036.165186, 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.
How much does Brendan David O'Donnell, MD prescribe under Medicare Part D?
In 2024, Brendan David O'Donnell, MD had 28 Medicare Part D claims for 22 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. 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.