Dr. Marcus D. Mazur, MD

Dr. Mazur practices at Providence Little Company of Mary Medical Center Torrance in Torrance, California, part of Providence Health & Services.

Dr. Mazur's NPI, 1104141647, was assigned on March 27, 2010. Dr. Mazur holds Utah license 8153504-1205.

Dr. Mazur's primary practice is Providence Little Company of Mary Medical Center Torrance, at 4101 Torrance Blvd, Torrance, CA 90503 in Los Angeles County. The practice phone is (310) 540-7676.

Dr. Mazur's primary practice is Providence Little Company of Mary Medical Center Torrance in Torrance, California, part of Providence Health & Services. Dr. Mazur is also affiliated with Providence Saint John's Health Center. The medical group on file is Saint John's Physician Partners. Dmand AI also links Dr. Mazur to 1 more hospital, 2 medical groups and 1 group practice or clinic, each named with a free account.

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

Neurological surgery is Dr. Mazur's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Mazur is board certified in neurological surgery by the American Board of Neurological Surgery. Dr. Mazur is licensed in Utah.

CMS data shows 238 Medicare services from Dr. Mazur across 8 procedure codes in 2024, for 99 Medicare patients. Medicare paid $37,181 for them.

CMS counts 99 Medicare patients who saw Dr. Mazur in 2024. The largest group is 65 to 74, with 57 patients. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.38, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Mazur's median patient age at 67, with 53% women.

In 2024, Dr. Mazur wrote 24 Medicare Part D claims for 13 patients. 96% of them were for generic drugs. They cover 5 drugs, with $1,531 in total drug cost. In 2020, CMS named 43 claims across 3 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Mazur for performance year 2024, reported as part of a group. Dr. Mazur accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 19 procedures of spinal fusion by Dr. Mazur, more than 36% of the clinicians it reports for that procedure.

Laminectomy or laminotomy (partial removal of spine bones): 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 40 papers to Dr. Mazur, published from 2017 to 2025. 2023 was the busiest year, with 8. The most frequent topics are Spinal Fusion, Neurosurgical Procedures and Cervical Vertebrae. Dr. Mazur has published most often in World Neurosurg. Dr. Mazur's most frequent co-authors are Andrew T. Dailey, MD, Erica F. Bisson, MD and Thomas James Buell, MD.

CMS Open Payments shows 195 general payments to Dr. Mazur from 13 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 64% of the total. Medtronic, Inc. paid the most, $4,986.