Dr. William Allen Rumack, MD

Dr. Rumack practices at Professional Orthopedics Medical Associates a Prof Medical Corp in West Hills, California.

Dr. Rumack's NPI, 1740257542, was assigned on March 1, 2006. Dr. Rumack graduated from University of Colorado Anschutz Medical Campus in 1996. Dr. Rumack holds California license A79561.

Dr. Rumack's primary practice is Professional Orthopedics Medical Associates a Prof Medical Corp, at 7345 Medical Center Dr, West Hills, CA 91307 in Los Angeles County. The practice phone is (818) 888-2855.

Dr. Rumack's primary practice is Professional Orthopedics Medical Associates a Prof Medical Corp in West Hills, California. Dr. Rumack is also affiliated with UCLA West Valley Medical Center. The medical group on file is Professional Orthopedics Medical Associates. Dmand AI also links Dr. Rumack to 2 more home health agencies, 1 physician office 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. Rumack practices, 5 sites in all. Vendor and product names are available with a free account.

Orthopaedic surgery is Dr. Rumack's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Rumack is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Rumack's licenses on file in 3 states: California, Colorado and Texas.

Dmand AI lists arm, wrist, hand fracture and dislocation, arthritis, broken or dislocated ankle/ or foot, bursitis, carpal tunnel syndrome, chest wall injury, enthesopathy in arms and fluid in a joint among the conditions Dr. Rumack treats.

CMS data shows 12,474 Medicare services from Dr. Rumack across 29 procedure codes in 2024, for 473 Medicare patients. Medicare paid $215,830 for them.

CMS counts 473 Medicare patients who saw Dr. Rumack in 2024. The largest group is 65 to 74, with 200 patients. 75% of them have arthritis, and 75% have high blood pressure. 17% are also on Medicaid. Their average risk score is 1.14, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Rumack's median patient age at 67, with 58% women.

In 2024, Dr. Rumack wrote 452 Medicare Part D claims for 199 patients. 100% of them were for generic drugs. CMS names the drug for 383 of them, across 4 drugs with 11 or more claims each, at $2,204 in total drug cost. In 2023, CMS named 505 claims across 5 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Rumack for performance year 2024, reported individually. Dr. Rumack accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 14 procedures of lower limb (leg) arthroscopy (minimally invasive joint repair) by Dr. Rumack, more than 87% of the clinicians it reports for that procedure.

Hip replacement: 1 to 10 procedures (CMS shows small counts as a range)

Knee replacement: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 1 paper to Dr. Rumack. Dr. Rumack's most frequent co-author is Richard Edward Jones, MD.

CMS Open Payments shows 93 general payments to Dr. Rumack from 22 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Team_Makena_LLC paid the most, $501.

Dr. Rumack graduated from University of Colorado Anschutz Medical Campus in 1996.

Dr. Rumack is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.