Dr. Ryan Michael Kretzer, MD

Dr. Kretzer practices at St. Joseph's Hospital in Tucson, Arizona, part of Tenet Healthcare.

Dr. Kretzer's NPI, 1861545766, was assigned on January 22, 2007. Dr. Kretzer graduated from Johns Hopkins University School of Medicine in 2004. Dr. Kretzer holds Maryland license P19038.

Dr. Kretzer's primary practice is St. Joseph's Hospital, at 350 North Wilmot Road, Tucson, AZ 85711 in Pima County. The practice phone is (520) 873-3000.

Dr. Kretzer's primary practice is St. Joseph's Hospital in Tucson, Arizona, part of Tenet Healthcare. The medical group on file is Carondelet Medical Group. Dmand AI also links Dr. Kretzer to 2 more group practices and clinics, 1 therapy and rehab clinic and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kretzer practices, 4 sites in all. Vendor and product names are available with a free account.

Neurological surgery is Dr. Kretzer's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Kretzer is licensed in Maryland.

CMS data shows 468 Medicare services from Dr. Kretzer across 10 procedure codes in 2024, for 188 Medicare patients. Medicare paid $146,379 for them.

CMS counts 188 Medicare patients who saw Dr. Kretzer in 2024. The largest group is 75 to 84, with 91 patients. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.22, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Kretzer's median patient age at 72, with 52% women.

In 2020, Dr. Kretzer wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $105 in total drug cost. In 2018, CMS named 34 claims across 1 drug.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Kretzer for performance year 2024, reported as part of a group. Dr. Kretzer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 83 procedures of laminectomy or laminotomy (partial removal of spine bones) by Dr. Kretzer, more than 91% of the clinicians it reports for that procedure.

Dmand AI links 20 papers to Dr. Kretzer, published from 2010 to 2013. 2010 was the busiest year, with 3. The most frequent topics are Bone Screws, Thoracic Vertebrae and Cadaver. Dr. Kretzer has published most often in J Neurosurg Spine. Dr. Kretzer's most frequent co-authors are George Jallo, Christopher D. Chaput, MD and Ira Martin Garonzik, MD.

CMS Open Payments shows 498 general payments to Dr. Kretzer from 21 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 45% of the total. Globus Medical, Inc. paid the most, $298,888. It also lists 1 research payment totaling $2,100 in 2016.

Dr. Kretzer graduated from Johns Hopkins University School of Medicine in 2004.