Dr. Alexander Riordan, M.D.

Orthopedic Surgery

Dr. Alexander Riordan is a board-certified orthopedic surgeon practicing in Oak Creek, Wisconsin. In 2023, Dr. Riordan performed 13 Medicare-verified hip replacements, ranking #103 in Wisconsin.

Dr. Riordan recorded 13 Medicare fee-for-service procedures in 2023. Medicare data represents approximately one-third of all joint replacements nationwide, so these counts reflect only a portion of a surgeon's full practice. Wisconsin has 185 orthopedic surgeons in the current dataset.

Dr. Riordan's Medicare data shows a focused hip replacement practice with 13 verified procedures in 2023. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.

Dr. Riordan is the only orthopedic surgeon in Oak Creek represented in the current Medicare dataset, serving as the primary local option for patients considering joint replacement surgery in the area.

Verified Medicare Cases (2023)

Hip Replacement
13 verified cases
#103 in Wisconsin
Estimated total: 40 – 40 procedures (all insurers)
Based on Medicare FFS representing 33–37% of national joint replacement volume
How is this estimated?

Medicare Part B fee-for-service claims represent approximately 33–37% of all joint replacements performed nationally (source: CMS data, AJRR). This range estimates the surgeon's total practice volume across all payers. The verified Medicare count above is the definitive, audited figure.

Hospital Affiliations

H
Aurora St Lukes Medical Center
Milwaukee, WI

Verified Case Volume Trends (2013-2023)

Frequently Asked Questions About Dr. Riordan

How does Dr. Riordan's procedure volume compare to other Wisconsin surgeons?

In 2023, Dr. Riordan performed 13 Medicare-verified joint replacement procedures. The Wisconsin average is 52 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Riordan ranks #164 out of 185 orthopedic surgeons in Wisconsin.

What types of joint replacement does Dr. Riordan perform?

Dr. Riordan's reported Medicare volume is focused on hip replacement, with 13 verified procedures in 2023. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Where is Dr. Riordan's practice located?

Dr. Riordan practices in Oak Creek, Wisconsin. The office is located at 200 E Ryan Rd, Oak Creek, WI 53154. Patients in the surrounding area can consult Dr. Riordan for joint replacement evaluation.

What does the Medicare data for Dr. Riordan represent?

The procedure counts shown are based on Medicare Part B fee-for-service claims data for 2023, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Riordan's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 13 procedures shown here.

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Contact & Location

📞 Phone: 414-570-3590
200 E Ryan Rd
Oak Creek, WI 53154
NPI: 1972879534
Credentials: M.D.
✅ Active Medicare provider (NPI verified)
📅 14 years of practice experience
🎓 Licensed M.D.
🏥 Licensed surgical specialist
🦴 Board-certified orthopedic surgeon
📞 Contact information available
Important: Rankings are based solely on Medicare procedure volume and do not reflect quality of care, patient outcomes, or procedures covered by private insurance. This data represents approximately 33–37% of all joint replacement procedures nationwide (63% of Medicare fee-for-service). Always consult with healthcare providers to make informed decisions about your care.