Abdullah B. Chahin, MD
Critical Care Medicine (Internal Medicine) Physician · Chicago Ridge, IL
Abdullah B. Chahin, MD is a critical care medicine (internal medicine) physician with a practice address in Chicago Ridge, Illinois, and NPI 1972736890, issued on Aug 26, 2009. Check the license (Illinois 036155515, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Abdullah B. Chahin
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- 036155515 IL
Self-reported in NPPES; status is on the state search - Practice location
- 10604 Southwest Hwy Ste 107, Chicago Ridge, IL 60415
- Phone
- (708) 422-0636
- Enumerated
- Aug 26, 2009
- Record last updated
- Apr 2, 2026
- Fax
- (708) 371-9330
- Medicare enrollment
- Enrolled (PECOS I20210528000436); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 281 in Illinois → Look up another NPI →
Also registered at 10604 Southwest Hwy Ste 107
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dinas Aleksonis, MDCritical Care Medicine (Internal Medicine) Physician1255505608
- Desirae Demarco, APNNurse Practitioner1821628710
- James Gordon, NPNurse Practitioner1972335024
- Dennis Martinez, D.O.Pulmonary Disease Physician1366837379
- Mohamad RachidPulmonary Disease Physician1093195968
- Kayla Richert, NPFamily Nurse Practitioner1124893896
Verify Abdullah B. Chahin 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 036155515Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
130 Medicare Part D claims for 39 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D.
Most prescribed
- Ceftriaxone19 claims
- Vancomycin Hcl17 claims
- Ertapenem14 claims
- Amoxicillin-Clavulanate Potass12 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.
2 hospitals and group practices
- Loyola University Medical CenterMaywood, IL · Acute Care Hospitals2 of 5 stars
- Hospitalist Physicians OF Illinois, P.C.Harvey, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Abdullah B. Chahin among 281 critical care medicine (internal medicine) physician records in Illinois
Abdullah B. Chahin, MD is one of 281 critical care medicine (internal medicine) physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 44% of them.
- NPI issued2009 · 44% of these records are older, 52% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2006 · median 2008 among the 226 with a school on file
- Record last updated2026 · 22% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 critical care medicine (internal medicine) physician records list a practice address in Chicago Ridge
They are 5 of the 195 NPPES records with a practice address in Chicago Ridge, and 281 critical care medicine (internal medicine) physician records in Illinois.
All 281 in Illinois → Every provider in Chicago Ridge → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Fadi Aldaas, M.DChicago Ridge, IL 604151417245499
- Dinas Aleksonis, MDChicago Ridge, IL 604151255505608
- Eyad Karzoun, MDChicago Ridge, IL 604151649470196
- Anas Nahhas, M.D.Chicago Ridge, IL 604151780648873
- Nirmit Desai, MDHarvey, IL 604261902368913
- Mairaj Jaleel, MDBerwyn, IL 604021083649990
- Michael Markos, M.D.Berwyn, IL 604021861658007
- Kirk Meyers, MDHazel Crest, IL 604291972064012
Common questions
What is Abdullah B. Chahin, MD's NPI number?
Abdullah B. Chahin, MD's National Provider Identifier (NPI) is 1972736890, issued on Aug 26, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Abdullah B. Chahin, MD located?
The NPPES record lists a practice address at 10604 Southwest Hwy Ste 107, Chicago Ridge, IL, 60415. Phone: (708) 422-0636. Providers update this record themselves, so call before visiting.
How can I verify Abdullah B. Chahin, MD's license?
NPPES lists Illinois license number 036155515, 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 Abdullah B. Chahin, MD prescribe under Medicare Part D?
In 2024, Abdullah B. Chahin, MD had 130 Medicare Part D claims for 39 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.