Dr. Gregory B. Auffenberg, MD, MS

Dr. Auffenberg practices at Neurosurgery of St Louis in Saint Louis, Missouri.

Dr. Auffenberg's NPI, 1396977328, was assigned on August 8, 2009. Dr. Auffenberg graduated from Northwestern University Feinberg Medical School in 2009. Dr. Auffenberg holds Missouri license 2021039448.

Dr. Auffenberg's primary practice is Neurosurgery of St Louis, at 12855 N Forty Dr, Saint Louis, MO 63141 in Saint Louis County. The practice phone is (314) 567-6071.

Dr. Auffenberg's primary practice is Neurosurgery of St Louis in Saint Louis, Missouri. Dr. Auffenberg is also affiliated with Missouri Baptist Medical Center. The medical group on file is OSF Multi-Specialty Group. Dmand AI also links Dr. Auffenberg to 4 more hospitals, 3 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. Auffenberg practices, 8 sites in all. Vendor and product names are available with a free account.

Urology is Dr. Auffenberg's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dmand AI has Dr. Auffenberg's licenses on file in 2 states: Missouri and Illinois.

CMS data shows 7,844 Medicare services from Dr. Auffenberg across 32 procedure codes in 2024, for 391 Medicare patients. Medicare paid $136,851 for them.

CMS counts 391 Medicare patients who saw Dr. Auffenberg in 2026. The largest group is 65 to 74, with 181 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.44, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Auffenberg's median patient age at 71, with 19% women.

In 2026, Dr. Auffenberg wrote 985 Medicare Part D claims for 222 patients. 81% of them were for generic drugs. CMS names the drug for 884 of them, across 14 drugs with 11 or more claims each, at $1,741,178 in total drug cost. In 2023, CMS named 890 claims across 15 drugs.

Dr. Auffenberg accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Auffenberg as offering telehealth. CMS counts 13 procedures of prostate resection by Dr. Auffenberg, more than 67% of the clinicians it reports for that procedure.

Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)

Removal of the uterus: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 23 papers to Dr. Auffenberg, published from 2017 to 2022. 2022 was the busiest year, with 6. The most frequent topics are Prostatic Neoplasms, Watchful Waiting and Prostatectomy. Dr. Auffenberg has published most often in J Urol. Dr. Auffenberg's most frequent co-authors are Daniel A. Barocas, MD, Stephen Anthony Boorjian, MD and Michael L. Cher, MD.

CMS Open Payments shows 177 general payments to Dr. Auffenberg from 38 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Urogen Pharma, Inc. paid the most, $603. It also lists 1 research payment totaling $11,700 in 2025, naming 1 clinical trial.

Dr. Auffenberg graduated from Northwestern University Feinberg Medical School in 2009.