#64 Hip
#90 Knee

Dr. Daniel Mandell, M.D.

Orthopedic Surgery
71 procedures 1 hospital Worcester, MA
Latest available Medicare data — updated April 2026
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety — under $50 essentials
National Comparison by Procedure
Hip 35 vs 36 avg (4,526 surgeons)
Knee 36 vs 45 avg (6,720 surgeons)

Dr. Daniel Mandell is a board-certified orthopedic surgeon practicing in Worcester, Massachusetts. A Medicare provider since 2013, Dr. Mandell has performed 36 Medicare-verified knee replacements (#90 in Massachusetts) and 35 hip replacements, for a combined total of 71 procedures.

In Massachusetts, Dr. Mandell performs below average in knee (36 vs 51 avg), below average in hip (35 vs 44 avg).

Dr. Mandell's reported Medicare volume is split between knee replacements (36 cases) and hip replacements (35 cases).

Worcester is home to 15 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 data spans 6 years, beginning in 2018. Volume peaked at 131 procedures in 2019 before settling at 71 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.

Among 6,720 knee replacement surgeons tracked nationally, Dr. Mandell's 36 verified procedures is near the national average of 45.

Verified Medicare Cases

Knee Replacement
36 verified cases
#90 in Massachusetts
Hip Replacement
35 verified cases
#64 in Massachusetts
Estimated total: 190 – 220 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 Below Avg
35 Avg: 44
Knee Below Avg
36 Avg: 51
Dr. Mandell Massachusetts Average

Contact & Location

Phone: 508-334-1955
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

Volume Trend Analysis

Dr. Mandell's recorded volume peaked at 131 procedures in 2019 and stood at 71 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.

Years of Data 6
2023 Volume 71
Peak Volume 131 (2019)
Trend Declining

Hospital Affiliations & Quality

H
Umass Memorial Medical Center Inc
★★★☆☆
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.

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 71 Medicare-verified joint replacement procedures. This is in line with the Massachusetts average of 74 procedures per surgeon. Dr. Mandell ranks #83 out of 202 orthopedic surgeons in Massachusetts.

What types of joint replacement does Dr. Mandell perform?

Dr. Mandell's Medicare data shows procedures in knee replacement (36 cases) and hip replacement (35 cases).

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

Yes. There are 15 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 71 procedures shown here.

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

Dr. Mandell's Medicare-recorded volume peaked at 131 procedures in 2019 and was 71 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. Mandell perform more than one type of joint replacement?

Yes. Dr. Mandell's Medicare data shows procedures in knee replacement (36 cases), hip replacement (35 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 15 orthopedic surgeons in Worcester, Dr. Mandell ranks #6 by total Medicare procedure volume. The highest-volume surgeon in Worcester has 163 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 71 Medicare procedures are below the Worcester average of 94. The table below compares verified procedure volumes for orthopedic surgeons practicing in Worcester.

SurgeonProceduresSpecialties
Dr. Andrew Braziel 163 Hip, Knee
Dr. Christopher Vinton 121 Hip, Knee
Dr. Philip Aurigemma 85 Hip, Knee
Dr. Jeffrey Lange 78 Hip, Knee
Dr. Nicholas Schraut 74 Hip, Knee
Dr. William Balcom 69 Hip, Knee

Patient Reviews & Ratings

OrthoProcedures.com focuses on verified Medicare procedure data. For patient reviews, ratings, and appointment scheduling, visit these trusted platforms:

These links lead to third-party websites. OrthoProcedures.com is not affiliated with these platforms and cannot verify the accuracy of reviews.

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.