Dr. Richard Glenn Fessler, MD

Dr. Fessler practices at Rush University Medical Center in Chicago, Illinois, part of Rush System for Health.

Dr. Fessler's NPI, 1447473426, was assigned on April 10, 2007. Dr. Fessler graduated from University Of Michigan Medical School in 1987. Dr. Fessler holds Illinois license 036071536.

Dr. Fessler's primary practice is Rush University Medical Center, at 1653 West Congress Parkway, Chicago, IL 60612 in Cook County. The practice phone is (312) 942-5000.

Dr. Fessler's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health. Dr. Fessler is also affiliated with Northwest Community Hospital. The medical group on file is Rush University Internists. Dmand AI also links Dr. Fessler to 1 more medical group, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fessler practices, 2 sites in all. Vendor and product names are available with a free account.

Neurological surgery is Dr. Fessler's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Fessler is board certified in neurological surgery by the American Board of Neurological Surgery. Dmand AI has Dr. Fessler's licenses on file in 3 states: Illinois, Florida and Michigan.

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. Fessler treats.

CMS data shows 209 Medicare services from Dr. Fessler across 6 procedure codes in 2024, for 164 Medicare patients. Medicare paid $36,084 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 164 Medicare patients who saw Dr. Fessler in 2024. The largest group is 65 to 74, with 76 patients. 75% of them have arthritis, and 75% have high cholesterol. Their average risk score is 1.06, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Fessler's median patient age at 73, with 51% women.

In 2024, Dr. Fessler wrote 33 Medicare Part D claims for 23 patients. 100% of them were for generic drugs. CMS names the drug for 18 of them, across 1 drug with 11 or more claims each, at $367 in total drug cost. In 2019, CMS named 27 claims across 2 drugs.

Dr. Fessler accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Fessler as offering telehealth. CMS counts 21 procedures of laminectomy or laminotomy (partial removal of spine bones) by Dr. Fessler, more than 50% of the clinicians it reports for that procedure.

Spinal fusion: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 204 papers to Dr. Fessler, published from 2003 to 2025. 2024 was the busiest year, with 10. The most frequent topics are Minimally Invasive Surgical Procedures, Spinal Fusion and Lumbar Vertebrae. Dr. Fessler has published most often in Neurosurgery. Dr. Fessler's most frequent co-authors are Gregory Michael Mundis, MD, Robert K. Eastlack, MD and John E. O'Toole, MD.

Dmand AI links Dr. Fessler to 2 clinical trials. Conditions studied include Back Injuries, Intracranial Arteriovenous Malformations and Central Nervous System Vascular Malformations.

CMS Open Payments shows 455 general payments to Dr. Fessler from 35 drug and device companies from 2016 to 2025. Royalties and licenses make up the largest share, 84% of the total. DePuy Synthes Sales Inc. paid the most, $1,467,034. It also lists 7 research payments totaling $49,517 in 2025.

Dmand AI lists 46 awards for Dr. Fessler, most recently Legneds of Neuroscience Award in 2017.

Dr. Fessler graduated from University Of Michigan Medical School in 1987. Dr. Fessler is a member of AANS, ACS and CNS.

Dr. Fessler is in network with 17 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.