Dr. William Cook, M.D.
Contact & Location
443-643-3130
Bel Air, MD 21014
Dr. Cook performs more knee replacement procedures than 55% of orthopedic surgeons in Maryland, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #61 of 138 ranked knee surgeons in Maryland.
About Dr. Cook
Practice. Dr. William Cook is a board-certified orthopedic surgeon practicing in Bel Air, Maryland. The latest annual CMS data records 42 knee replacements, 25 hip replacements, and 21 shoulder replacements, 88 procedures in all. That is #61 in Maryland for knee replacement.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 50 procedures a year to 88, up 76%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 42 procedures is near the national average of 45.
Local context. Bel Air has 4 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement | Shoulder Replacement |
|---|---|---|---|
| 2013 | 16 | 34 | 0 |
| 2014 | 24 | 31 | 0 |
| 2015 | 39 | 48 | 0 |
| 2016 | 23 | 41 | 0 |
| 2017 | 21 | 47 | 11 |
| 2018 | 23 | 46 | 0 |
| 2019 | 27 | 46 | 16 |
| 2020 | 17 | 27 | 14 |
| 2021 | 15 | 35 | 21 |
| 2022 | 29 | 42 | 22 |
| 2023 | 22 | 35 | 22 |
| 2024 | 25 | 42 | 21 |
Verified Medicare Cases
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, 25% to 33% for hip replacement, 29% to 37% for shoulder 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. Cook Compares
Procedure volume compared to the Maryland state average.
Volume Trend Analysis
Dr. Cook's Medicare-recorded procedure volume has trended upward over 12 years, increasing 76% from 50 procedures in 2013 to 88 in the most recent data.
Hospital Affiliations & Quality
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:
An overview of current surgical approaches including robotic-assisted and minimally invasive techniques, implant options, and expected outcomes.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
Knee Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after knee replacement surgery:
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. Cook
How does Dr. Cook's procedure volume compare to other Maryland surgeons?
Dr. Cook has performed 88 Medicare-verified joint replacement procedures. This is in line with the Maryland average of 71 procedures per surgeon. Dr. Cook ranks #43 out of 166 orthopedic surgeons in Maryland.
What types of joint replacement does Dr. Cook perform?
Dr. Cook performs all three major joint replacement procedures: knee replacement (42 cases), hip replacement (25 cases), shoulder replacement (21 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.
Are there other orthopedic surgeons near Dr. Cook in Bel Air?
Yes. There are 4 orthopedic surgeons in Bel Air 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 Maryland surgeons.
What does the Medicare data for Dr. Cook 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, 25% to 33% for hip replacement, 29% to 37% for shoulder replacement, which puts Dr. Cook's total volume across all insurers at roughly 280 to 360 procedures against the 88 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. Cook's procedure volume changed over time?
Yes. Dr. Cook's Medicare-recorded volume has increased from 50 procedures in 2013 to 88 in the most recent data, a 76% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 93 procedures in 2022.
Does Dr. Cook perform more than one type of joint replacement?
Yes. Dr. Cook's Medicare data shows procedures in knee replacement (42 cases), hip replacement (25 cases), shoulder replacement (21 cases). Performing all three major joint replacements places Dr. Cook among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.
Which hospitals is Dr. Cook affiliated with?
According to CMS facility affiliation data, Dr. Cook is affiliated with University Of Md Upper Chesapeake Medical Center.
How does Dr. Cook compare to other orthopedic surgeons in Bel Air?
Among the 4 orthopedic surgeons in Bel Air, Dr. Cook ranks #1 by total Medicare procedure volume. Dr. Cook has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Cook practices?
University Of Md Upper Chesapeake Medical Center (2 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 Bel Air, Maryland
Dr. Cook's 88 Medicare procedures are above the Bel Air average of 58. The table below compares verified procedure volumes for orthopedic surgeons practicing in Bel Air.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Raj Yalamanchili | 86 | Hip, Knee |
| Dr. Edward O'mara | 32 | Knee |
| Dr. Mark Clough | 24 | 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.