Dr. Andrew MacK, M.D.
Contact & Location
301-295-4290
Bethesda, MD 20889
About Dr. MacK
Dr. Andrew MacK is a board-certified orthopedic surgeon practicing in Bethesda, Maryland. A Medicare provider since 2006, Dr. MacK performed 16 Medicare-verified hip replacements (#70 in Maryland) and 11 knee replacements in the latest annual CMS data, for a combined total of 27 procedures.
In Maryland, Dr. MacK performs below the state average in hip (16 vs 42), below the state average in knee (11 vs 49).
Dr. MacK's reported Medicare volume is split between hip replacements (16 cases) and knee replacements (11 cases).
Bethesda is home to 11 orthopedic surgeons in the current Medicare dataset. Patients in the Bethesda area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. MacK's Medicare data spans 3 years, beginning in 2022. Volume peaked at 37 procedures in 2022 before settling at 27 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. MacK's 16 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 Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 23 | 14 |
| 2023 | 20 | 12 |
| 2024 | 16 | 11 |
Verified Medicare Cases
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. MacK Compares
Procedure volume compared to the Maryland state average.
Volume Trend Analysis
Dr. MacK's recorded volume peaked at 37 procedures in 2022 and stood at 27 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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 Hip Replacement
If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:
Understanding the progression from conservative treatments to surgical intervention, and how to determine when hip replacement becomes the right choice.
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.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
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.
Hip Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after hip replacement surgery:
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. MacK
How does Dr. MacK's procedure volume compare to other Maryland surgeons?
Dr. MacK has performed 27 Medicare-verified joint replacement procedures. The Maryland average is 71 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. MacK ranks #119 out of 166 orthopedic surgeons in Maryland.
What types of joint replacement does Dr. MacK perform?
Dr. MacK's Medicare data shows procedures in hip replacement (16 cases) and knee replacement (11 cases).
Are there other orthopedic surgeons near Dr. MacK in Bethesda?
Yes. There are 11 orthopedic surgeons in Bethesda 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. MacK 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. MacK's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 27 procedures shown here.
Has Dr. MacK's procedure volume changed over time?
Dr. MacK's Medicare-recorded volume peaked at 37 procedures in 2022 and was 27 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. MacK perform more than one type of joint replacement?
Yes. Dr. MacK's Medicare data shows procedures in hip replacement (16 cases), knee replacement (11 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. MacK affiliated with?
According to CMS facility affiliation data, Dr. MacK is affiliated with Sisters Of Charity Hospital, Kenmore Mercy Hospital. Dr. MacK maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. MacK compare to other orthopedic surgeons in Bethesda?
Among the 11 orthopedic surgeons in Bethesda, Dr. MacK ranks #10 by total Medicare procedure volume. The highest-volume surgeon in Bethesda has 397 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. MacK practices?
Sisters Of Charity Hospital (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Kenmore Mercy Hospital (2 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 Bethesda, Maryland
Dr. MacK's 27 Medicare procedures are below the Bethesda average of 139. The table below compares verified procedure volumes for orthopedic surgeons practicing in Bethesda.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Christopher Cannova | 397 | Hip, Knee |
| Dr. Sridhar Durbhakula | 230 | Hip, Knee |
| Dr. Carey Politzer | 101 | Hip, Knee |
| Dr. Shian Peterson | 78 | Hip, Knee |
| Dr. Min Lu | 75 | Hip, Knee |
| Dr. Kurt Schluntz | 67 | 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.