Dr. Michael Anderson, MD

Orthopedic Surgery
44 procedures 3 hospitals Grafton, WI
Latest available Medicare data — updated April 2026

Contact & Location

Phone: 262-387-8300
Practice phone listed in the NPI registry
975 Port Washington Road
Grafton, WI 53024
NPI: 1558353243
Credentials: MD
Active Medicare provider (NPI verified)
21 years of practice experience
Licensed MD
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps
Hip replacement recovery kit Essentials every patient wishes they bought first
National Comparison by Procedure
Hip 23 vs 36 avg (4,532 surgeons)
Knee 21 vs 45 avg (6,599 surgeons)

Dr. Michael Anderson is a board-certified orthopedic surgeon practicing in Grafton, Wisconsin. A Medicare provider since 2005, Dr. Anderson has performed 23 Medicare-verified hip replacements (#59 in Wisconsin) and 21 knee replacements, for a combined total of 44 procedures.

In Wisconsin, Dr. Anderson performs below average in hip (23 vs 29 avg), below average in knee (21 vs 36 avg).

Dr. Anderson's reported Medicare volume is split between hip replacements (23 cases) and knee replacements (21 cases).

Grafton is home to 6 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 12 years, beginning in 2013. Volume peaked at 80 procedures in 2013 before settling at 44 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.

Dr. Anderson's 23 hip replacement procedures is below the national average of 36 among 4,532 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.

Verified Medicare Cases

Hip Replacement
23 verified cases
#59 in Wisconsin
Knee Replacement
21 verified cases
#95 in Wisconsin
Estimated total: 120 – 130 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 Below Avg
23 Avg: 29
Knee Below Avg
21 Avg: 36
Dr. Anderson Wisconsin Average

Volume Trend Analysis

Dr. Anderson's recorded volume peaked at 80 procedures in 2013 and stood at 44 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.

Years of Data 12
2024 Volume 44
Peak Volume 80 (2013)
Trend Declining

Hospital Affiliations & Quality

H
Aurora Medical Center
5/5
Grafton, WI
Similar to national avg
H
Aurora St Lukes Medical Center
4/5
Milwaukee, WI
Similar to national avg
H
Aurora Medical Ctr Washington County
4/5
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.

Patient Resources: Preparing for Hip Replacement

If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:

Hip Replacement Recovery Overview

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

Week 1-2 Walking with assistive device (walker or cane). Gentle range-of-motion exercises begin. Most patients can manage basic self-care.
Week 3-6 Transition to walking independently. Resume driving short distances. Physical therapy focuses on strength and balance.
Week 7-12 Return to most daily activities and light exercise. Stair climbing improves. Many patients return to desk work.
Month 4-6 Full recovery for most patients. Resume recreational activities, golf, swimming, and low-impact exercise.

Individual recovery varies based on overall health, age, and adherence to physical therapy. View full hip 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 44 Medicare-verified joint replacement procedures. This is in line with the Wisconsin average of 51 procedures per surgeon. Dr. Anderson ranks #93 out of 189 orthopedic surgeons in Wisconsin.

What types of joint replacement does Dr. Anderson perform?

Dr. Anderson's Medicare data shows procedures in hip replacement (23 cases) and knee replacement (21 cases).

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

Yes. There are 6 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 44 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 44 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 hip replacement (23 cases), knee replacement (21 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 6 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 44 Medicare procedures are above the Grafton average of 31. The table below compares verified procedure volumes for orthopedic surgeons practicing in Grafton.

SurgeonProceduresSpecialties
Dr. Stephen Kurtin 79 Hip, Knee
Dr. Rafael Walker -Santiago 20 Hip
Dr. Nathan Kopydlowski 17 Shoulder
Dr. Matthew Wichman 12 Hip
Dr. Omar Darr 11 Knee

Patient Resources & Verification

Research reviews, verify credentials, and check official quality data through these trusted sources:

Medicare Care Compare and NPI Registry are official U.S. government sources. Google reviews reflect user-submitted feedback. OrthoProcedures.com does not verify the accuracy of third-party review content.

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.