William Kosmala, M.D.
Gastroenterology Physician · Palos Heights, IL
William Kosmala, M.D. is a gastroenterology physician with a practice address in Palos Heights, Illinois, and NPI 1760442511, issued on Mar 24, 2006. Check the license (Illinois 036112741, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William Kosmala
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 036112741 IL
Self-reported in NPPES; status is on the state search - Practice location
- 12150 S Harlem Ave, Palos Heights, IL 60463
- Phone
- (708) 361-4778
- Enumerated
- Mar 24, 2006
- Record last updated
- Mar 1, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050414001057); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 12150 S Harlem Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rick Chadha, M.D.Gastroenterology Physician1992770598
- James Draguesku, M.D.Gastroenterology Physician1225003411
- Patricia Kehoe, NPNurse Practitioner1821735150
- William O'Reilly, M.D.Hematology & Oncology Physician1437124625
- Daniel Oreilly, M.D.Gastroenterology Physician1457325987
Verify William Kosmala 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 036112741Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% more Medicare Part D claims than the average gastroenterology physician in 2024
1,419 Medicare Part D claims for 469 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Pantoprazole Sodium436 claims
- Omeprazole153 claims
- Famotidine80 claims
- Balsalazide Disodium51 claims
- Sucralfate51 claims
- Linzess50 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $302.18
14 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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 one group practice
- Illinois Gastroenterology Group LLCOrland Park, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Kosmala among 887 gastroenterology physician records in Illinois
William Kosmala, M.D. is one of 887 gastroenterology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 52% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1999 · median 2003 among the 643 with a school on file
- Record last updated2010 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Illinois
There are 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Palos Heights → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Rick Chadha, M.D.Palos Heights, IL 604631992770598
- James Draguesku, M.D.Palos Heights, IL 604631225003411
- Ronald Mochizuki, M.D.Palos Heights, IL 604631083602270
- Daniel Oreilly, M.D.Palos Heights, IL 604631457325987
- Ahmad Alkaddour, M.D.Orland Park, IL 604621659660272
- Jatinder Goyal, MDOrland Park, IL 604621760772925
- Ayodele Osowo, MDOrland Park, IL 604621063552479
- Tarun Patel, M.D.Orland Park, IL 604621912285255
Common questions
What is William Kosmala, M.D.'s NPI number?
William Kosmala, M.D.'s National Provider Identifier (NPI) is 1760442511, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Kosmala, M.D. located?
The NPPES record lists a practice address at 12150 S Harlem Ave, Palos Heights, IL, 60463. Phone: (708) 361-4778. Providers update this record themselves, so call before visiting.
How can I verify William Kosmala, M.D.'s license?
NPPES lists Illinois license number 036112741, 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 William Kosmala, M.D. prescribe under Medicare Part D?
In 2024, William Kosmala, M.D. had 1,419 Medicare Part D claims for 469 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is William Kosmala, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.