Dr. Jason Klein, M.D.

Orthopedic Surgery

12 procedures5 hospitalsGreen Bay, WIUpdated May 2026

Contact & Location

920-430-8120
Phone: 920-430-8120
Practice phone listed in the NPI registry
2223 Lime Kiln Rd, Suite 1
Green Bay, WI 54311
Current practice address per the CMS NPPES registry (self-reported to the registry, last updated April 2025). Registry checked August 2026.
NPI: 1922185990
Credentials: M.D.
Active Medicare provider (NPI verified)
20 years of practice experience
Licensed M.D.
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps
National Comparison by Procedure
Knee 12 vs 45 national avg 0.3x
avg

Compared with 6,612 knee surgeons in the 2024 Medicare dataset.

Dr. Klein performs more knee replacement procedures than 3% of orthopedic surgeons in Wisconsin, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #146 of 152 ranked knee surgeons in Wisconsin.

About Dr. Klein

Practice. Dr. Jason Klein is a board-certified orthopedic surgeon practicing in Green Bay, Wisconsin. The latest annual CMS data records 12 knee replacements. That is #146 in Wisconsin for knee replacement. A Medicare provider since 2006.

Trend. Medicare records run from 2013 to 2024, 11 years. Volume peaked at 39 in 2019 and stands at 12 now. Reporting changes and payer mix can both move that number.

National context. Among 6,612 knee replacement surgeons tracked nationally, 12 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.

Local context. Green Bay has 19 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist. Dr. Klein also holds hospital privileges in WI and MI, a practice that extends beyond Wisconsin.

Verified Medicare Cases

Knee Replacement
12 verified cases
#146 in Wisconsin
Estimated 2024 total: 40 – 50 procedures (all insurers)
Medicare fee-for-service share of national volume in 2024: 23% to 28% for knee replacement
How is this estimated?

Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 23% to 28% for knee replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.

How Dr. Klein Compares

Procedure volume compared to the Wisconsin state average.

Knee Below Avg
12 Avg: 36
Dr. Klein Wisconsin Average

Volume Trend Analysis

Dr. Klein's recorded volume peaked at 39 procedures in 2019 and stood at 12 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
2024 Volume 12
Peak Volume 39 (2019)
Trend Declining

Hospital Affiliations & Quality

H
St Marys Hospital Medical Ctr
4/5
Green Bay, WI
Low case volume
H
Osf Saint Francis Hospital
3/5
Escanaba, MI
Low case volume
H
Up Health System - Marquette
3/5
Marquette, MI
Similar to national avg
H
Aurora Medical Center Bay Area
3/5
Marinette, WI
Low case volume
H
Door County Medical Center
5/5
Sturgeon Bay, 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 Knee Replacement

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

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. Klein

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

Dr. Klein has performed 12 Medicare-verified joint replacement procedures. The Wisconsin average is 51 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Klein ranks #178 out of 189 orthopedic surgeons in Wisconsin.

What types of joint replacement does Dr. Klein perform?

Dr. Klein's reported Medicare volume is focused on knee replacement, with 12 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Are there other orthopedic surgeons near Dr. Klein in Green Bay?

Yes. There are 19 orthopedic surgeons in Green Bay 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. Klein represent?

The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 23% to 28% for knee replacement, which puts Dr. Klein's total volume across all insurers at roughly 40 to 50 procedures against the 12 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.

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

Dr. Klein's Medicare-recorded volume peaked at 39 procedures in 2019 and was 12 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.

Which hospitals is Dr. Klein affiliated with?

According to CMS facility affiliation data, Dr. Klein is affiliated with St Marys Hospital Medical Ctr, Osf Saint Francis Hospital, Up Health System - Marquette, Aurora Medical Center Bay Area, Door County Medical Center. Dr. Klein maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.

How does Dr. Klein compare to other orthopedic surgeons in Green Bay?

Among the 19 orthopedic surgeons in Green Bay, Dr. Klein ranks #18 by total Medicare procedure volume. The highest-volume surgeon in Green Bay has 100 verified Medicare procedures.

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

St Marys Hospital Medical Ctr (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Osf Saint Francis Hospital (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Up Health System - Marquette (3 out of 5 CMS stars, hip/knee complication rate similar to national average). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.

Other Orthopedic Surgeons in Green Bay, Wisconsin

Dr. Klein's 12 Medicare procedures are below the Green Bay average of 69. The table below compares verified procedure volumes for orthopedic surgeons practicing in Green Bay.

SurgeonProceduresSpecialties
Dr. Kirk Dimitris 100 Hip, Knee
Dr. Michael Schnaubelt 100 Hip, Knee
Dr. Michael Tressler 81 Hip, Knee, Shoulder
Dr. Chad Zehms 72 Hip, Knee, Shoulder
Dr. Kenneth Kleist 67 Hip, Knee
Dr. Walker Flannery 52 Hip, 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. Jason Klein, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/wi/dr-jason-klein-green-bay.html

Link: https://orthoprocedures.com/surgeons/wi/dr-jason-klein-green-bay.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.