Dr. William Jacob Mack IV, MD

Dr. Mack practices at Keck Hospital of USC in Los Angeles, California, part of University of Southern California.

Dr. Mack's NPI, 1811163793, was assigned on May 1, 2008. Dr. Mack graduated from Columbia University Vagelos College of Physicians and Surgeons in 2001. Dr. Mack's California license number on file is A104088.

Dr. Mack's primary practice is Keck Hospital of USC, at 1500 San Pablo Street, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 442-8656.

Dr. Mack's primary practice is Keck Hospital of USC in Los Angeles, California, part of University of Southern California. Dr. Mack is also affiliated with Los Angeles General Medical Center. The medical group on file is USC Care Medical Group. Dmand AI also links Dr. Mack to 1 more hospital, 1 group practice or clinic, 1 other site and 1 urgent care center, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mack practices, 6 sites in all. Vendor and product names are available with a free account.

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

Dmand AI lists craniotomy among the conditions Dr. Mack treats.

CMS data shows 160 Medicare services from Dr. Mack across 10 procedure codes in 2024, for 83 Medicare patients. Medicare paid $31,711 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 83 Medicare patients who saw Dr. Mack in 2024. The largest group is 65 to 74, with 42 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 57% are also on Medicaid. Their average risk score is 1.89, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Mack's median patient age at 61, with 60% women.

In 2024, Dr. Mack wrote 24 Medicare Part D claims. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $5,817 in total drug cost. In 2023, CMS named 23 claims across 1 drug.

Dr. Mack accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mack as offering telehealth.

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

Dmand AI links 130 papers to Dr. Mack, published from 2001 to 2024. 2020 was the busiest year, with 7. The most frequent topics are Disease Models, Animal, Brain Ischemia and Stroke. Dr. Mack has published most often in Neurosurgery. Dr. Mack's most frequent co-authors are Andrew Frederick Ducruet, MD, Ricardo Jorge Komotar, MD and Gabriel Zada, MD.

Dmand AI links Dr. Mack to 4 clinical trials. Conditions studied include Stroke, Cerebrovascular Disorders and Cerebral Hemorrhage. University of Southern California sponsors the most, 2. Open Payments lists research payments to Dr. Mack that name 1 trial.

CMS Open Payments shows 60 general payments to Dr. Mack from 14 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 68% of the total. Imperative Care, Inc paid the most, $4,503. It also lists 5 research payments totaling $3,868 from 2016 to 2018, naming 1 clinical trial.

Dmand AI lists 1 award for Dr. Mack.

Dr. Mack graduated from Columbia University Vagelos College of Physicians and Surgeons in 2001. Dr. Mack is a member of AANS, CNS, Society of Neurointerventional Surgeons and Society of Neurological Surgeons.

Dr. Mack is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.