Dr. Dean G. Karahalios, MD

Dr. Karahalios practices at Advocate Good Samaritan Hospital in Downers Grove, Illinois, part of Advocate Health.

Dr. Karahalios' NPI, 1245205210, was assigned on February 22, 2006. Dr. Karahalios graduated from Feinberg School of Medicine in 1991. Dr. Karahalios holds Illinois license 036097583.

Dr. Karahalios' primary practice is Advocate Good Samaritan Hospital, at 3815 Highland Avenue, Downers Grove, IL 60515 in Du Page County. The practice phone is (630) 275-5900.

Dr. Karahalios' primary practice is Advocate Good Samaritan Hospital in Downers Grove, Illinois, part of Advocate Health. Dr. Karahalios is also affiliated with Aurora St. Luke's Medical Center. The medical group on file is Dreyer Medical Clinic (Advocate Medical Group). Dmand AI also links Dr. Karahalios to 2 more 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. Karahalios practices, 4 sites in all. Vendor and product names are available with a free account.

Neurological surgery is Dr. Karahalios' primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Karahalios is board certified in neurological surgery by the American Board of Neurological Surgery. Dmand AI has Dr. Karahalios' licenses on file in 4 states: Illinois, Arizona, Wisconsin and Indiana.

Dmand AI lists back and neck pain treatment without fusion, craniotomy, lower back pain, muscle pain, fibromyalgia, and limb pain, neck pain and spine problems, spinal fusion and thoracic spine disorders among the conditions Dr. Karahalios treats.

CMS data shows 173 Medicare services from Dr. Karahalios across 5 procedure codes in 2024, for 127 Medicare patients. Medicare paid $24,024 for them.

CMS counts 127 Medicare patients who saw Dr. Karahalios in 2024. The largest group is 65 to 74, with 60 patients. 75% of them have arthritis, and 75% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.42, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Karahalios' median patient age at 71, with 43% women.

In 2024, Dr. Karahalios wrote 87 Medicare Part D claims for 31 patients. 100% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $1,087 in total drug cost. In 2023, CMS named 85 claims across 4 drugs.

Dr. Karahalios accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 53 procedures of spinal fusion by Dr. Karahalios, more than 57% of the clinicians it reports for that procedure.

Dmand AI links 17 papers to Dr. Karahalios, published from 2010 to 2021. 2013 was the busiest year, with 2. The most frequent topics are Bone Screws, Spinal Fusion and Thoracic Vertebrae. Dr. Karahalios has published most often in J Neurosurg. Dr. Karahalios' most frequent co-authors are Paul Jon Apostolides, MD, Raed Fuad Abusuwwa, DO and Mohammad Arsal Arshad, DO.

Dmand AI links Dr. Karahalios to 1 clinical trial. Conditions studied include Spinal Stenosis and Spinal Diseases.

CMS Open Payments shows 322 general payments to Dr. Karahalios from 28 drug and device companies from 2016 to 2025. Royalties and licenses make up the largest share, 70% of the total. Medtronic USA, Inc. paid the most, $173,772.

Dmand AI lists 2 awards for Dr. Karahalios, most recently CMS Stage 1 EHR in 2013.

Dr. Karahalios graduated from Feinberg School of Medicine in 1991. Dr. Karahalios is a member of AANS/CNS Joint Section on Disorders of the Spine and Peripheral Nerves, AOA, American Association of Neurological Surgeons, AANS, American Board of Neurological Surgery and Neurosurgical Society of America.

Dr. Karahalios is in network with 17 carriers, including Elevance, Aetna and HCSC. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.