Dr. Michael Stephen Williams Jr., MD

Dr. Williams practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care.

Dr. Williams' NPI, 1750544011, was assigned on July 8, 2008. Dr. Williams holds Missouri license 2008016771.

Dr. Williams' primary practice is SSM Health Saint Louis University Hospital, at 1201 S Grand Blvd, Saint Louis, MO 63104 in St. Louis City. The practice phone is (314) 257-8000.

Dr. Williams' primary practice is SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care. Dr. Williams is also affiliated with SSM Health St. Mary's Hospital - St. Louis. The medical group on file is SLUCare Physician Group. Dmand AI also links Dr. Williams to 1 more hospital, 2 group practices and clinics, 1 behavioral health center and 1 medical group, each named with a free account.

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

Vascular surgery is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dr. Williams is licensed in Missouri.

CMS data shows 339 Medicare services from Dr. Williams across 9 procedure codes in 2024, for 315 Medicare patients. Medicare paid $8,188 for them.

CMS counts 315 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 142 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 3.29, 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. Williams' median patient age at 69, with 43% women.

In 2024, Dr. Williams wrote 130 Medicare Part D claims for 41 patients. 85% of them were for generic drugs. CMS names the drug for 104 of them, across 5 drugs with 11 or more claims each, at $10,018 in total drug cost. In 2023, CMS named 72 claims across 4 drugs.

Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Leg revascularization (restoring blood flow): 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

CMS Open Payments shows 92 general payments to Dr. Williams from 35 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 82% of the total. Philips Electronics North America Corporation paid the most, $1,027.