Dr. Gretchen M. Ahrendt, MD

Dr. Ahrendt practices at CommonSpirit - St. Anthony North Hospital in Westminster, Colorado, part of CommonSpirit Health.

Dr. Ahrendt's NPI, 1396802500, was assigned on January 3, 2007. Dr. Ahrendt graduated from Johns Hopkins University School of Medicine in 1990. Dr. Ahrendt holds Colorado license DR.0058045.

Dr. Ahrendt's primary practice is CommonSpirit - St. Anthony North Hospital, at 14300 Orchard Pkwy, Westminster, CO 80023 in Broomfield County. The practice phone is (720) 627-0000.

Dr. Ahrendt's primary practice is CommonSpirit - St. Anthony North Hospital in Westminster, Colorado, part of CommonSpirit Health. Dr. Ahrendt is also affiliated with CommonSpirit - St. Anthony Hospital. The medical group on file is Cardiac & Thoracic Surgery Associates (CTSA). Dmand AI also links Dr. Ahrendt to 1 more group practice or clinic, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ahrendt practices, 3 sites in all. Vendor and product names are available with a free account.

Surgery is Dr. Ahrendt's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Ahrendt's licenses on file in 2 states: Colorado and Pennsylvania.

CMS data shows 24 Medicare services from Dr. Ahrendt across 2 procedure codes in 2024, for 35 Medicare patients. Medicare paid $8,350 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 35 Medicare patients who saw Dr. Ahrendt in 2024. The largest group is 65 to 74, with 17 patients. 75% of them have cancer, and 75% have high cholesterol. Their average risk score is 1.35, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Ahrendt's median patient age at 67, with 98% women.

In 2018, Dr. Ahrendt wrote 27 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $91 in total drug cost.

Dr. Ahrendt accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 13 procedures of mastectomy by Dr. Ahrendt, more than 68% of the clinicians it reports for that procedure.

Dmand AI links 65 papers to Dr. Ahrendt, published from 2010 to 2024. 2023 was the busiest year, with 7. The most frequent topics are Breast Neoplasms, Neoadjuvant Therapy and Mastectomy. Dr. Ahrendt has published most often in Ann Surg Oncol. Dr. Ahrendt's most frequent co-authors are Victoria Huynh, MD, Atilla Soran, MD and Nicole T. Christian, MD, MS.

Dmand AI links Dr. Ahrendt to 3 clinical trials, 2 of them phase 3 studies. 2 are still active or recruiting. Conditions studied include Breast Neoplasms, Breast Diseases and Carcinoma, Intraductal, Noninfiltrating. Alliance for Clinical Trials in Oncology sponsors the most, 2.

CMS Open Payments shows 14 general payments to Dr. Ahrendt from 6 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 54% of the total. Endomagnetics Ltd paid the most, $4,188.

Dr. Ahrendt graduated from Johns Hopkins University School of Medicine in 1990.