Dr. Mark Lemos, M.D.

Orthopedic Surgery
23 procedures 2 hospitals Burlington, MA
Latest available Medicare data — updated April 2026

Contact & Location

Phone: 781-744-8692
Practice phone listed in the NPI registry
41 Mall Rd
Burlington, MA 01805
NPI: 1326131129
Credentials: M.D.
Active Medicare provider (NPI verified)
20 years of practice experience
Licensed M.D.
Licensed surgical specialist
Board-certified orthopedic surgeon
Sports medicine specialist
Contact information available
Find Practice on Google Maps
Shoulder replacement recovery kit Slings, cold therapy, and adaptive clothing for recovery
National Comparison by Procedure
Shoulder 23 vs 29 avg (2,213 surgeons)

Dr. Mark Lemos is a board-certified orthopedic surgeon practicing in Burlington, Massachusetts. A Medicare provider since 2006, Dr. Lemos has performed 23 Medicare-verified shoulder replacements, ranking #24 in Massachusetts.

In Massachusetts, Dr. Lemos performs below average in shoulder (23 vs 35 avg).

Dr. Lemos's Medicare data shows a focused shoulder replacement practice with 23 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.

Burlington is home to 8 orthopedic surgeons in the current Medicare dataset. Patients in the Burlington area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Dr. Lemos's Medicare data spans 11 years, beginning in 2013. Volume peaked at 58 procedures in 2014 before settling at 23 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.

Dr. Lemos's 23 shoulder replacement procedures is below the national average of 29 among 2,213 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.

Verified Medicare Cases

Shoulder Replacement
23 verified cases
#24 in Massachusetts
Estimated total: 60 – 70 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. Lemos Compares

Procedure volume compared to the Massachusetts state average.

Shoulder Below Avg
23 Avg: 35
Dr. Lemos Massachusetts Average

Volume Trend Analysis

Dr. Lemos's recorded volume peaked at 58 procedures in 2014 and stood at 23 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.

Years of Data 11
2024 Volume 23
Peak Volume 58 (2014)
Trend Declining

Hospital Affiliations & Quality

H
Lahey Hospital & Medical Center, Burlington
5/5
Burlington, MA
Similar to national avg
H
Beverly Hospital Corporation
3/5
Beverly, 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 Shoulder Replacement

If you are considering shoulder replacement surgery, these evidence-based guides can help you prepare and recover:

Shoulder Replacement Recovery Overview

Recovery timelines vary by patient, but here is a general overview of what to expect after shoulder replacement surgery:

Week 1-3 Arm in a sling for protection. Gentle pendulum exercises under therapist guidance. Focus on pain management and wound care.
Week 4-6 Gradual sling weaning. Begin passive and active-assisted range-of-motion exercises. Light daily activities resume.
Week 7-12 Active range-of-motion exercises. Light strengthening begins. Most patients can drive and perform desk work.
Month 4-6 Progressive strengthening continues. Return to most activities. Full recovery may take 6-12 months for complete shoulder strength.

Individual recovery varies based on overall health, age, and adherence to physical therapy. View full shoulder replacement recovery guide and product recommendations

Frequently Asked Questions About Dr. Lemos

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

Dr. Lemos has performed 23 Medicare-verified joint replacement procedures. The Massachusetts average is 74 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Lemos ranks #158 out of 203 orthopedic surgeons in Massachusetts.

What types of joint replacement does Dr. Lemos perform?

Dr. Lemos's reported Medicare volume is focused on shoulder replacement, with 23 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Are there other orthopedic surgeons near Dr. Lemos in Burlington?

Yes. There are 8 orthopedic surgeons in Burlington 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. Lemos 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. Lemos's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 23 procedures shown here.

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

Dr. Lemos's Medicare-recorded volume peaked at 58 procedures in 2014 and was 23 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.

Which hospitals is Dr. Lemos affiliated with?

According to CMS facility affiliation data, Dr. Lemos is affiliated with Lahey Hospital & Medical Center, Burlington, Beverly Hospital Corporation.

How does Dr. Lemos compare to other orthopedic surgeons in Burlington?

Among the 8 orthopedic surgeons in Burlington, Dr. Lemos ranks #6 by total Medicare procedure volume. The highest-volume surgeon in Burlington has 123 verified Medicare procedures.

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

Lahey Hospital & Medical Center, Burlington (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Beverly Hospital Corporation (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 Burlington, Massachusetts

Dr. Lemos's 23 Medicare procedures are below the Burlington average of 54. The table below compares verified procedure volumes for orthopedic surgeons practicing in Burlington.

SurgeonProceduresSpecialties
Dr. Stephanie Clegg 123 Hip, Knee
Dr. John Tilzey 89 Hip, Knee
Dr. Lawrence Specht 74 Hip, Knee
Dr. Brian Jolley 26 Knee
Dr. Richard Iorio 24 Knee
Dr. Paul Smiley 17 Shoulder

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. Mark Lemos, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ma/dr-mark-lemos-burlington.html

Link: https://orthoprocedures.com/surgeons/ma/dr-mark-lemos-burlington.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.