Marwan Alkassis
Urology Physician · Chicago, IL
Marwan Alkassis is a urology physician with a practice address in Chicago, Illinois, and NPI 1083496525, issued on Oct 18, 2023. Check the license (Illinois 125083060, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Marwan Alkassis
- Primary taxonomy
- Urology Physician 208800000X
- License number
- 125083060 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1130 S Michigan Ave Apt 3414, Chicago, IL 60605
- Phone
- (872) 335-8585
- Enumerated
- Oct 18, 2023
- Record last updated
- Jul 13, 2025
- Entity
- Type 1 · individual
8 nearest urology physician records → All 629 in Illinois → Look up another NPI →
Verify Marwan Alkassis 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 125083060Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average urology physician in 2024
86 Medicare Part D claims for 41 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.
Most prescribed
- Gemtesa35 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: $1,170.94
12 payments; by number, the most common kind was food and beverage; the largest payer was Coloplast Corp. The 9,340 providers of this specialty with any payment received $3,800.04 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.
Marwan Alkassis among 629 urology physician records in Illinois
Marwan Alkassis is one of 629 urology physician records with a practice address in Illinois. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 92% of them.
- NPI issued2023 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 54% of these records are
- Record last updated2025 · 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 208800000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Illinois
There are 629 urology physician records in Illinois.
All 629 in Illinois → Every provider in Chicago → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Edward Kirsh, MDChicago, IL 606081235165929
- Jagan Kansal, M.DChicago, IL 606101942611694
- Olufenwa Milhouse, M.D.Chicago, IL 606101225353717
- Emil Totonchi, M.D.Chicago, IL 606101891716668
- Robert Brannigan, MDChicago, IL 606111073573143
- Michael Carter, M.D.Chicago, IL 606111609807510
- William Catalona, MDChicago, IL 606111497716724
- Daniel Dalton, M.D.Chicago, IL 606111669403432
Common questions
What is Marwan Alkassis's NPI number?
Marwan Alkassis's National Provider Identifier (NPI) is 1083496525, issued on Oct 18, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Marwan Alkassis located?
The NPPES record lists a practice address at 1130 S Michigan Ave Apt 3414, Chicago, IL, 60605. Phone: (872) 335-8585. Providers update this record themselves, so call before visiting.
How can I verify Marwan Alkassis's license?
NPPES lists Illinois license number 125083060, 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 Marwan Alkassis prescribe under Medicare Part D?
In 2024, Marwan Alkassis had 86 Medicare Part D claims for 41 beneficiaries; the average among urology physician prescribers was 1,340. 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.