#55 Hip
#55 Knee

Dr. Michael Anderson, MD

Orthopedic Surgery
61 procedures 3 hospitals Grafton, WI
Latest available Medicare data — updated April 2026
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety — under $50 essentials
National Comparison by Procedure
Hip 25 vs 36 avg (4,526 surgeons)
Knee 36 vs 45 avg (6,720 surgeons)

Dr. Michael Anderson is a board-certified orthopedic surgeon practicing in Grafton, Wisconsin. Dr. Anderson has performed 36 Medicare-verified knee replacements (#55 in Wisconsin) and 25 hip replacements, for a combined total of 61 procedures.

In Wisconsin, Dr. Anderson performs near average in knee (36 vs 37 avg), near average in hip (25 vs 29 avg).

Dr. Anderson's reported Medicare volume is split between knee replacements (36 cases) and hip replacements (25 cases).

Grafton is home to 5 orthopedic surgeons in the current Medicare dataset. Patients in the Grafton area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Dr. Anderson's Medicare data spans 11 years, beginning in 2013. Volume peaked at 80 procedures in 2013 before settling at 61 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.

Among 6,720 knee replacement surgeons tracked nationally, Dr. Anderson's 36 verified procedures is near the national average of 45.

Verified Medicare Cases

Knee Replacement
36 verified cases
#55 in Wisconsin
Hip Replacement
25 verified cases
#55 in Wisconsin
Estimated total: 160 – 180 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.

How Dr. Anderson Compares

Procedure volume compared to the Wisconsin state average.

Hip Average
25 Avg: 29
Knee Average
36 Avg: 37
Dr. Anderson Wisconsin Average

Contact & Location

975 Port Washington Road
Grafton, WI 53024
NPI: 1558353243
Credentials: MD
Active Medicare provider
Find Practice on Google Maps

Volume Trend Analysis

Dr. Anderson's recorded volume peaked at 80 procedures in 2013 and stood at 61 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.

Years of Data 11
2023 Volume 61
Peak Volume 80 (2013)
Trend Declining

Hospital Affiliations & Quality

H
Aurora Medical Center
★★★★★
Grafton, WI
Similar to national avg
H
Aurora St Lukes Medical Center
★★★★☆
Milwaukee, WI
Similar to national avg
H
Aurora Medical Ctr Washington County
★★★★☆
Hartford, WI
Low case volume

Quality ratings and complication rates are hospital-level metrics from CMS Hospital Compare and do not reflect individual surgeon performance. Star ratings updated quarterly. Complication data covers a rolling 3-year period.

Knee Replacement Recovery Overview

Recovery timelines vary by patient, but here is a general overview of what to expect after knee replacement surgery:

Week 1-2 Walking with assistive device. Knee bending exercises begin immediately. Ice therapy and elevation for swelling control.
Week 3-6 Increased range of motion (target 90 degrees). Walking longer distances. Physical therapy intensifies with strengthening exercises.
Week 7-12 Most patients walk without assistive devices. Resume driving and desk work. Continue PT for strength and flexibility.
Month 4-6 Near-full recovery. Resume most recreational activities. Some swelling and stiffness may persist but continues improving.

Individual recovery varies based on overall health, age, and adherence to physical therapy. View full knee replacement recovery guide and product recommendations

Frequently Asked Questions About Dr. Anderson

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

Dr. Anderson has performed 61 Medicare-verified joint replacement procedures. This is in line with the Wisconsin average of 52 procedures per surgeon. Dr. Anderson ranks #57 out of 185 orthopedic surgeons in Wisconsin.

What types of joint replacement does Dr. Anderson perform?

Dr. Anderson's Medicare data shows procedures in knee replacement (36 cases) and hip replacement (25 cases).

Are there other orthopedic surgeons near Dr. Anderson in Grafton?

Yes. There are 5 orthopedic surgeons in Grafton in the current Medicare dataset. Patients can compare procedure volumes and specializations to choose the surgeon who best fits their needs. Use the state page to view all Wisconsin surgeons.

What does the Medicare data for Dr. Anderson represent?

The procedure counts shown are based on the most recent Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Anderson's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 61 procedures shown here.

Has Dr. Anderson's procedure volume changed over time?

Dr. Anderson's Medicare-recorded volume peaked at 80 procedures in 2013 and was 61 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.

Does Dr. Anderson perform more than one type of joint replacement?

Yes. Dr. Anderson's Medicare data shows procedures in knee replacement (36 cases), hip replacement (25 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. Anderson affiliated with?

According to CMS facility affiliation data, Dr. Anderson is affiliated with Aurora Medical Center, Aurora St Lukes Medical Center, Aurora Medical Ctr Washington County.

How does Dr. Anderson compare to other orthopedic surgeons in Grafton?

Among the 5 orthopedic surgeons in Grafton, Dr. Anderson ranks #2 by total Medicare procedure volume. Dr. Anderson is among the highest-volume surgeons in Grafton.

What are the quality ratings for hospitals where Dr. Anderson practices?

Aurora Medical Center (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Aurora St Lukes Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Aurora Medical Ctr Washington County (4 out of 5 CMS stars, insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.

Other Orthopedic Surgeons in Grafton, Wisconsin

Dr. Anderson's 61 Medicare procedures are above the Grafton average of 42. The table below compares verified procedure volumes for orthopedic surgeons practicing in Grafton.

SurgeonProceduresSpecialties
Dr. Stephen Kurtin 100 Hip, Knee
Dr. Rafael Walker -Santiago 22 Hip
Dr. Omar Darr 13 Knee
Dr. Matthew Wichman 12 Hip

Patient Reviews & Ratings

OrthoProcedures.com focuses on verified Medicare procedure data. For patient reviews, ratings, and appointment scheduling, visit these trusted platforms:

These links lead to third-party websites. OrthoProcedures.com is not affiliated with these platforms and cannot verify the accuracy of reviews.

Cite This Data

APA: OrthoProcedures. (2026). Dr. Michael Anderson, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/wi/dr-michael-anderson-grafton.html

Link: https://orthoprocedures.com/surgeons/wi/dr-michael-anderson-grafton.html

Data source: CMS Medicare Part B Provider Utilization & Payment Data. Full methodology | Open Data API

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 one-third to 40% of all joint replacement procedures nationwide. Always consult with healthcare providers to make informed decisions about your care.