Dr. Bassem Chaar, MD

Dr. Chaar practices at Affiliated Oncologists in Chicago Ridge, Illinois.

Dr. Chaar's NPI, 1497783179, was assigned on June 29, 2006. Dr. Chaar graduated from American University of Beirut Faculty of Medicine in 1998. Dr. Chaar holds Illinois license 036.138654.

Dr. Chaar's primary practice is Affiliated Oncologists, at 10604 Southwest Hwy, Chicago Ridge, IL 60415 in Cook County. The practice phone is (310) 335-4000.

Dr. Chaar's primary practice is Affiliated Oncologists in Chicago Ridge, Illinois. Dr. Chaar is also affiliated with Advocate Christ Medical Center. The medical group on file is Affiliated Oncologists. Dmand AI also links Dr. Chaar to 3 more hospitals and 1 group practice or clinic, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chaar practices, 5 sites in all. Vendor and product names are available with a free account.

Hematology and oncology is Dr. Chaar's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Chaar is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Chaar's licenses on file in 2 states: Illinois and Missouri.

Dmand AI lists breast cancer, chronic anemia, chronic embolism thrombosis, chronic leukemia, colorectal cancer, lung cancer, lymphoma and multiple myeloma among the conditions Dr. Chaar treats.

CMS data shows 78,275 Medicare services from Dr. Chaar across 46 procedure codes in 2024, for 468 Medicare patients. Medicare paid $1,076,456 for them.

CMS counts 468 Medicare patients who saw Dr. Chaar in 2024. The largest group is 65 to 74, with 193 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 2.91, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Chaar's median patient age at 71, with 57% women.

In 2024, Dr. Chaar wrote 2,260 Medicare Part D claims for 233 patients. 75% of them were for generic drugs. CMS names the drug for 1,923 of them, across 52 drugs with 11 or more claims each, at $4,224,559 in total drug cost. In 2023, CMS named 1,661 claims across 51 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Chaar for performance year 2024, reported as part of a group. Dr. Chaar accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chaar as offering telehealth.

Dmand AI links 10 papers to Dr. Chaar, published from 2007 to 2020. The most frequent topics are Fluorodeoxyglucose F18, Radiopharmaceuticals and Tomography, X-Ray Computed. Dr. Chaar's most frequent co-authors are Nghi Co Nguyen, MD, PhD, Medhat M. Osman, MD and Razi Muzaffar, DO.

CMS Open Payments shows 326 general payments to Dr. Chaar from 51 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 83% of the total. Merck Sharp & Dohme Corporation paid the most, $1,362.

Dr. Chaar graduated from American University of Beirut Faculty of Medicine in 1998. Dr. Chaar is a member of ACP, ASCO and ASH.

Dr. Chaar is in network with 19 carriers, including Aetna, HCSC and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.