#22 Hip
#26 Shoulder
#27 Knee

Dr. David Marcu, M.D.

Orthopedic Surgery
109 procedures 5 hospitals Prairie Du Sac, WI
Latest available Medicare data — updated April 2026
Rising Star
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety — under $50 essentials
National Comparison by Procedure
Hip 42 vs 36 avg (4,526 surgeons)
Knee 55 vs 45 avg (6,720 surgeons)
Shoulder 12 vs 28 avg (2,092 surgeons)

Dr. David Marcu is a board-certified orthopedic surgeon practicing in Prairie Du Sac, Wisconsin. Dr. Marcu has completed 55 knee replacements (#27 in Wisconsin), 42 hip replacements, and 12 shoulder replacements, totaling 109 Medicare-verified procedures.

In Wisconsin, Dr. Marcu performs above average in knee (55 vs 37 avg), above average in hip (42 vs 29 avg), below average in shoulder (12 vs 25 avg).

Dr. Marcu performs all three major joint replacement procedures — hip, knee, and shoulder — indicating a broad scope of orthopedic practice. The largest share is knee replacements (55 cases), followed by hip replacements (42) and shoulder replacements (12).

Prairie Du Sac is home to 4 orthopedic surgeons in the current Medicare dataset. Patients in the Prairie Du Sac area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Marcu extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 32 to 109 in the most recent data, a 241% increase. This sustained growth reflects an expanding joint replacement practice.

Among 6,720 knee replacement surgeons tracked nationally, Dr. Marcu's 55 verified procedures is above the national average of 45.

Verified Medicare Cases

Knee Replacement
55 verified cases
#27 in Wisconsin
Hip Replacement
42 verified cases
#22 in Wisconsin
Shoulder Replacement
12 verified cases
#26 in Wisconsin
Estimated total: 290 – 330 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. Marcu Compares

Procedure volume compared to the Wisconsin state average.

Hip High
42 Avg: 29
Knee High
55 Avg: 37
Shoulder Below Avg
12 Avg: 25
Dr. Marcu Wisconsin Average

Contact & Location

260 26th St
Prairie Du Sac, WI 53578
NPI: 1588600787
Credentials: M.D.
Active Medicare provider
Find Practice on Google Maps

Volume Trend Analysis

Dr. Marcu's Medicare-recorded procedure volume has trended upward over 11 years, increasing 241% from 32 procedures in 2013 to 109 in the most recent data.

Years of Data 11
2023 Volume 109
Peak Volume 109 (2023)
Trend Growing

Hospital Affiliations & Quality

H
Sauk Prairie Hospital
★★★★★
Prairie Du Sac, WI
Similar to national avg
H
Richland Hospital
★★★★☆
Richland Center, WI
Low case volume
H
Reedsburg Area Medical Center
★★★☆☆
Reedsburg, WI
Low case volume
H
Ssm Health St Clare Hospital - Baraboo
★★★★☆
Baraboo, WI
Low case volume
H
University Of Wi Hospitals & Clinics Authority
★★★★☆
Madison, WI
Similar to national avg

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. Marcu

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

Dr. Marcu has performed 109 Medicare-verified joint replacement procedures. This is more than 2x the Wisconsin average of 52 procedures per surgeon. Dr. Marcu ranks #18 out of 185 orthopedic surgeons in Wisconsin.

What types of joint replacement does Dr. Marcu perform?

Dr. Marcu performs all three major joint replacement procedures: knee replacement (55 cases), hip replacement (42 cases), shoulder replacement (12 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.

Are there other orthopedic surgeons near Dr. Marcu in Prairie Du Sac?

Yes. There are 4 orthopedic surgeons in Prairie Du Sac 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. Marcu 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. Marcu's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 109 procedures shown here.

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

Yes. Dr. Marcu's Medicare-recorded volume has increased from 32 procedures in 2013 to 109 in the most recent data, a 241% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 109 procedures in 2023.

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

Yes. Dr. Marcu's Medicare data shows procedures in knee replacement (55 cases), hip replacement (42 cases), shoulder replacement (12 cases). Performing all three major joint replacements places Dr. Marcu among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.

Which hospitals is Dr. Marcu affiliated with?

According to CMS facility affiliation data, Dr. Marcu is affiliated with Sauk Prairie Hospital, Richland Hospital, Reedsburg Area Medical Center, Ssm Health St Clare Hospital - Baraboo, University Of Wi Hospitals & Clinics Authority.

How does Dr. Marcu compare to other orthopedic surgeons in Prairie Du Sac?

Among the 4 orthopedic surgeons in Prairie Du Sac, Dr. Marcu ranks #2 by total Medicare procedure volume. Dr. Marcu is among the highest-volume surgeons in Prairie Du Sac.

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

Sauk Prairie Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Richland Hospital (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Reedsburg Area Medical Center (3 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 Prairie Du Sac, Wisconsin

Dr. Marcu's 109 Medicare procedures are below the Prairie Du Sac average of 110. The table below compares verified procedure volumes for orthopedic surgeons practicing in Prairie Du Sac.

SurgeonProceduresSpecialties
Dr. Michael Lamson 168 Hip, Knee
Dr. Matthew Hebert 102 Hip, Knee
Dr. Andrew Ertl 60 Knee

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. David Marcu, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/wi/dr-david-marcu-prairie-du-sac.html

Link: https://orthoprocedures.com/surgeons/wi/dr-david-marcu-prairie-du-sac.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.