Dr. Daniel Mullen, M.D.
Contact & Location
480-834-7000
Mesa, AZ 85206
About Dr. Mullen
Dr. Daniel Mullen is a board-certified orthopedic surgeon practicing in Mesa, Arizona. A Medicare provider since 2006, Dr. Mullen completed 110 knee replacements (#12 in Arizona), 51 hip replacements, and 29 shoulder replacements in the latest annual CMS data, totaling 190 Medicare-verified procedures.
In Arizona, Dr. Mullen performs well above the state average in knee (110 vs 49), above the state average in hip (51 vs 40), near the state average in shoulder (29 vs 31).
Dr. Mullen performs all three major joint replacement procedures — hip, knee, and shoulder — indicating a broad scope of orthopedic practice. The largest share is knee replacements (110 cases), followed by hip replacements (51) and shoulder replacements (29).
Mesa is home to 7 orthopedic surgeons in the current Medicare dataset. Patients in the Mesa area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Mullen extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 104 to 190 in the most recent data, a 83% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Mullen's 110 verified procedures is more than 2x the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement | Shoulder Replacement |
|---|---|---|---|
| 2013 | 28 | 65 | 11 |
| 2014 | 13 | 58 | 19 |
| 2015 | 22 | 67 | 17 |
| 2016 | 29 | 76 | 21 |
| 2017 | 29 | 115 | 18 |
| 2018 | 53 | 116 | 25 |
| 2019 | 51 | 100 | 20 |
| 2020 | 52 | 86 | 33 |
| 2021 | 48 | 99 | 28 |
| 2022 | 57 | 93 | 29 |
| 2023 | 49 | 145 | 27 |
| 2024 | 51 | 110 | 29 |
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. Mullen Compares
Procedure volume compared to the Arizona state average.
Volume Trend Analysis
Dr. Mullen's Medicare-recorded procedure volume has trended upward over 12 years, increasing 83% from 104 procedures in 2013 to 190 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.
What to Expect on the Day of SurgeryA step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
Medicare Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
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. Mullen
How does Dr. Mullen's procedure volume compare to other Arizona surgeons?
Dr. Mullen has performed 190 Medicare-verified joint replacement procedures. This is more than 2x the Arizona average of 72 procedures per surgeon. Dr. Mullen ranks #11 out of 191 orthopedic surgeons in Arizona.
What types of joint replacement does Dr. Mullen perform?
Dr. Mullen performs all three major joint replacement procedures: knee replacement (110 cases), hip replacement (51 cases), shoulder replacement (29 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.
How experienced is Dr. Mullen with knee replacement surgery?
Dr. Mullen ranks #12 in Arizona for knee replacement with 110 Medicare-verified procedures. This high ranking among 191 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Mullen in Mesa?
Yes. There are 7 orthopedic surgeons in Mesa 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 Arizona surgeons.
What does the Medicare data for Dr. Mullen 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. Mullen's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 190 procedures shown here.
Has Dr. Mullen's procedure volume changed over time?
Yes. Dr. Mullen's Medicare-recorded volume has increased from 104 procedures in 2013 to 190 in the most recent data, a 83% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 221 procedures in 2023.
Does Dr. Mullen perform more than one type of joint replacement?
Yes. Dr. Mullen's Medicare data shows procedures in knee replacement (110 cases), hip replacement (51 cases), shoulder replacement (29 cases). Performing all three major joint replacements places Dr. Mullen among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.
Which hospitals is Dr. Mullen affiliated with?
According to CMS facility affiliation data, Dr. Mullen is affiliated with Arizona Specialty Hospital, Arizona Spine And Joint Hospital.
How does Dr. Mullen compare to other orthopedic surgeons in Mesa?
Among the 7 orthopedic surgeons in Mesa, Dr. Mullen ranks #1 by total Medicare procedure volume. Dr. Mullen has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Mullen practices?
Arizona Specialty Hospital (hip/knee complication rate above national average); Arizona Spine And Joint Hospital (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 Mesa, Arizona
Dr. Mullen's 190 Medicare procedures are above the Mesa average of 68. The table below compares verified procedure volumes for orthopedic surgeons practicing in Mesa.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Todd Phillips | 70 | Shoulder |
| Dr. Joseph Scoggin | 65 | Hip, Knee |
| Dr. Amalia De Comas | 53 | Hip, Knee |
| Dr. Brian McWhorter | 52 | Hip, Knee |
| Dr. Michael Duran | 36 | Hip, Knee |
| Dr. Andre Matthews | 13 | 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.