Dr. Daniel Mandell, M.D.

Orthopedic Surgery
83 procedures 1 hospital Worcester, MA
Latest available Medicare data — updated April 2026

Contact & Location

Phone: 508-334-1955
Practice phone listed in the NPI registry
55 Lake Ave N
Worcester, MA 01655
NPI: 1851739544
Credentials: M.D.
Active Medicare provider (NPI verified)
13 years of practice experience
Licensed M.D.
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety, all under $50
National Comparison by Procedure
Hip 36 vs 36 avg (4,532 surgeons)
Knee 47 vs 45 avg (6,599 surgeons)

Dr. Daniel Mandell is a board-certified orthopedic surgeon practicing in Worcester, Massachusetts. A Medicare provider since 2013, Dr. Mandell has performed 47 Medicare-verified knee replacements (#65 in Massachusetts) and 36 hip replacements, for a combined total of 83 procedures.

In Massachusetts, Dr. Mandell performs near average in knee (47 vs 50 avg), near average in hip (36 vs 44 avg).

Dr. Mandell's reported Medicare volume is split between knee replacements (47 cases) and hip replacements (36 cases).

Worcester is home to 13 orthopedic surgeons in the current Medicare dataset. Patients in the Worcester area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Dr. Mandell's Medicare record spans 7 years from 2018 through 2024. Procedure volume has remained consistent during that period, ranging from 33 to 131 procedures per year, reflecting a steady joint replacement practice.

Among 6,599 knee replacement surgeons tracked nationally, Dr. Mandell's 47 verified procedures is near the national average of 45.

Verified Medicare Cases

Knee Replacement
47 verified cases
#65 in Massachusetts
Hip Replacement
36 verified cases
#61 in Massachusetts
Estimated total: 220 – 250 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. Mandell Compares

Procedure volume compared to the Massachusetts state average.

Hip Average
36 Avg: 44
Knee Average
47 Avg: 50
Dr. Mandell Massachusetts Average

Volume Trend Analysis

Dr. Mandell's procedure volume has been consistent across 7 years of Medicare data, ranging from 33 to 131 procedures per year. This stability suggests a well-established joint replacement practice.

Years of Data 7
2024 Volume 83
Peak Volume 131 (2019)
Trend Stable

Hospital Affiliations & Quality

H
Umass Memorial Medical Center Inc
3/5
Worcester, MA
Similar to national avg

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. Mandell

How does Dr. Mandell's procedure volume compare to other Massachusetts surgeons?

Dr. Mandell has performed 83 Medicare-verified joint replacement procedures. This is in line with the Massachusetts average of 74 procedures per surgeon. Dr. Mandell ranks #71 out of 203 orthopedic surgeons in Massachusetts.

What types of joint replacement does Dr. Mandell perform?

Dr. Mandell's Medicare data shows procedures in knee replacement (47 cases) and hip replacement (36 cases).

Are there other orthopedic surgeons near Dr. Mandell in Worcester?

Yes. There are 13 orthopedic surgeons in Worcester 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 Massachusetts surgeons.

What does the Medicare data for Dr. Mandell 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. Mandell's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 83 procedures shown here.

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

Dr. Mandell's procedure volume has been relatively stable over 7 years of Medicare data, ranging from 33 to 131 procedures per year between 2018 and 2024. Consistent volume over multiple years reflects a steady joint replacement practice.

Does Dr. Mandell perform more than one type of joint replacement?

Yes. Dr. Mandell's Medicare data shows procedures in knee replacement (47 cases), hip replacement (36 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. Mandell affiliated with?

According to CMS facility affiliation data, Dr. Mandell is affiliated with Umass Memorial Medical Center Inc.

How does Dr. Mandell compare to other orthopedic surgeons in Worcester?

Among the 13 orthopedic surgeons in Worcester, Dr. Mandell ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Worcester has 127 verified Medicare procedures.

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

Umass Memorial Medical Center Inc (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 Worcester, Massachusetts

Dr. Mandell's 83 Medicare procedures are below the Worcester average of 86. The table below compares verified procedure volumes for orthopedic surgeons practicing in Worcester.

SurgeonProceduresSpecialties
Dr. Christopher Vinton 127 Hip, Knee
Dr. Nicholas Schraut 104 Hip, Knee
Dr. Philip Aurigemma 85 Hip, Knee
Dr. Jeffrey Lange 78 Hip, Knee
Dr. Steven Disegna 63 Hip, Knee
Dr. William Balcom 59 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. Daniel Mandell, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ma/dr-daniel-mandell-worcester.html

Link: https://orthoprocedures.com/surgeons/ma/dr-daniel-mandell-worcester.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.