#95 in Wisconsin
Knee

Dr. Mark Lang, MD

Orthopedic Surgery
24 procedures 1 hospital Sheboygan, 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
Knee 24 vs 45 avg (6,720 surgeons)

Dr. Mark Lang is a board-certified orthopedic surgeon practicing in Sheboygan, Wisconsin. Dr. Lang has performed 24 Medicare-verified knee replacements, ranking #95 in Wisconsin.

In Wisconsin, Dr. Lang performs below average in knee (24 vs 37 avg).

Dr. Lang's Medicare data shows a focused knee replacement practice with 24 verified procedures. 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.

Sheboygan is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the Sheboygan area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Lang extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 13 to 24 in the most recent data, a 85% increase. This sustained growth reflects an expanding joint replacement practice.

Dr. Lang's 24 knee replacement procedures is below the national average of 45 among 6,720 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.

Verified Medicare Cases

Knee Replacement
24 verified cases
#95 in Wisconsin
Estimated total: 60 – 70 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. Lang Compares

Procedure volume compared to the Wisconsin state average.

Knee Below Avg
24 Avg: 37
Dr. Lang Wisconsin Average

Contact & Location

2414 Kohler Memorial Dr
Sheboygan, WI 53081
NPI: 1952418402
Credentials: MD
Active Medicare provider
Find Practice on Google Maps

Volume Trend Analysis

Dr. Lang's Medicare-recorded procedure volume has trended upward over 11 years, increasing 85% from 13 procedures in 2013 to 24 in the most recent data.

Years of Data 11
2023 Volume 24
Peak Volume 35 (2016)
Trend Growing

Hospital Affiliations & Quality

H
Aurora Medical Center Sheboygan County
★★★★★
Sheboygan, 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. Lang

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

Dr. Lang has performed 24 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. Lang ranks #134 out of 185 orthopedic surgeons in Wisconsin.

What types of joint replacement does Dr. Lang perform?

Dr. Lang's reported Medicare volume is focused on knee replacement, with 24 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Are there other orthopedic surgeons near Dr. Lang in Sheboygan?

Yes. There are 3 orthopedic surgeons in Sheboygan 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. Lang 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. Lang's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 24 procedures shown here.

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

Yes. Dr. Lang's Medicare-recorded volume has increased from 13 procedures in 2013 to 24 in the most recent data, a 85% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 35 procedures in 2016.

Which hospitals is Dr. Lang affiliated with?

According to CMS facility affiliation data, Dr. Lang is affiliated with Aurora Medical Center Sheboygan County.

How does Dr. Lang compare to other orthopedic surgeons in Sheboygan?

Among the 3 orthopedic surgeons in Sheboygan, Dr. Lang ranks #2 by total Medicare procedure volume. Dr. Lang is among the highest-volume surgeons in Sheboygan.

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

Aurora Medical Center Sheboygan County (5 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 Sheboygan, Wisconsin

Dr. Lang's 24 Medicare procedures are below the Sheboygan average of 41. The table below compares verified procedure volumes for orthopedic surgeons practicing in Sheboygan.

SurgeonProceduresSpecialties
Dr. Charles Green 87 Hip, Knee
Dr. Matthew Willsey 12 Shoulder

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. Mark Lang, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/wi/dr-mark-lang-sheboygan.html

Link: https://orthoprocedures.com/surgeons/wi/dr-mark-lang-sheboygan.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.