Dr. Ambalavanan Arunachalam, MD

Dr. Arunachalam practices at Presence Resurrection Medical Center in Chicago, Illinois.

Dr. Arunachalam's NPI, 1073868154, was assigned on July 16, 2012. Dr. Arunachalam holds Illinois license 036152826.

Dr. Arunachalam's primary practice is Presence Resurrection Medical Center, at 7435 W Talcott Ave, Chicago, IL 60631 in Cook County. The practice phone is (773) 792-5253.

Dr. Arunachalam's primary practice is Presence Resurrection Medical Center in Chicago, Illinois. Dr. Arunachalam is also affiliated with Northwestern Memorial Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Arunachalam to 4 more hospitals, 2 group practices and clinics and 2 medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Arunachalam practices, 7 sites in all. Vendor and product names are available with a free account.

Pulmonary disease is Dr. Arunachalam's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Arunachalam is board certified in critical care medicine by the American Board of Internal Medicine. Dr. Arunachalam is licensed in Illinois.

CMS data shows 556 Medicare services from Dr. Arunachalam across 8 procedure codes in 2024, for 109 Medicare patients. Medicare paid $62,384 for them.

CMS counts 109 Medicare patients who saw Dr. Arunachalam in 2024. The largest group is 65 to 74, with 81 patients. 75% of them have copd, and 75% have high blood pressure. 27% are also on Medicaid. Their average risk score is 3.67, 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. Arunachalam's median patient age at 68, with 53% women.

In 2024, Dr. Arunachalam wrote 1,587 Medicare Part D claims for 128 patients. 88% of them were for generic drugs. CMS names the drug for 1,236 of them, across 32 drugs with 11 or more claims each, at $605,142 in total drug cost. In 2023, CMS named 966 claims across 27 drugs.

Dr. Arunachalam accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Arunachalam as offering telehealth.

Dmand AI links 14 papers to Dr. Arunachalam, published from 2018 to 2025. 2024 was the busiest year, with 5. The most frequent topics are Lung Transplantation, Antiviral Agents and Cytomegalovirus. Dr. Arunachalam has published most often in JHLT Open. Dr. Arunachalam's most frequent co-authors are Rade Tomic, MD, Chitaru Kurihara, MD and Ankit Bharat, MD.

CMS Open Payments shows 54 general payments to Dr. Arunachalam from 21 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 86% of the total. United Therapeutics Corporation paid the most, $474. It also lists 9 research payments totaling $1,704 in 2024, naming 1 clinical trial.