#8 in New York
Shoulder

Dr. Gregory Mallo, M.D.

Orthopedic Surgery
61 procedures 2 hospitals East Setauket, NY
Latest available Medicare data — updated April 2026
Rising Star
Shoulder replacement recovery kit Slings, cold therapy, and adaptive clothing for recovery
National Comparison by Procedure
Shoulder 61 vs 28 avg (2,092 surgeons)

Dr. Gregory Mallo is a board-certified orthopedic surgeon practicing in East Setauket, New York. A Medicare provider since 2007, Dr. Mallo has performed 61 Medicare-verified shoulder replacements, ranking #8 in New York.

In New York, Dr. Mallo performs well above average in shoulder (61 vs 28 avg).

Dr. Mallo's Medicare data shows a focused shoulder replacement practice with 61 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.

East Setauket is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the East Setauket area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Mallo extend back to 2014, covering 8 years of data. Over that period, recorded procedure volume increased from 15 to 61 in the most recent data, a 307% increase. This sustained growth reflects an expanding joint replacement practice.

Among 2,092 shoulder replacement surgeons tracked nationally, Dr. Mallo's 61 verified procedures is more than 2x the national average of 28, ranking #163 nationally.

Verified Medicare Cases

Shoulder Replacement
61 verified cases
#8 in New York
Estimated total: 160 – 180 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. Mallo Compares

Procedure volume compared to the New York state average.

Shoulder Very High
61 Avg: 28
Dr. Mallo New York Average

Contact & Location

Phone: 631-689-6698
6 Technology Dr 100
East Setauket, NY 11733
NPI: 1245412295
Credentials: M.D.
Active Medicare provider (NPI verified)
19 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. Mallo's Medicare-recorded procedure volume has trended upward over 8 years, increasing 307% from 15 procedures in 2014 to 61 in the most recent data.

Years of Data 8
2023 Volume 61
Peak Volume 61 (2023)
Trend Growing

Hospital Affiliations & Quality

H
John T Mather Memorial Hospital Of Port Jefferson
★★★★★
Port Jefferson, NY
Similar to national avg
H
St Charles Hospital
★★★★☆
Port Jefferson, NY
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.

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. Mallo

How does Dr. Mallo's procedure volume compare to other New York surgeons?

Dr. Mallo has performed 61 Medicare-verified joint replacement procedures. This is in line with the New York average of 67 procedures per surgeon. Dr. Mallo ranks #123 out of 338 orthopedic surgeons in New York.

What types of joint replacement does Dr. Mallo perform?

Dr. Mallo's reported Medicare volume is focused on shoulder replacement, with 61 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

How experienced is Dr. Mallo with shoulder replacement surgery?

Dr. Mallo ranks #8 in New York for shoulder replacement with 61 Medicare-verified procedures. This high ranking among 338 state surgeons indicates significant experience with this specific procedure.

Are there other orthopedic surgeons near Dr. Mallo in East Setauket?

Yes. There are 6 orthopedic surgeons in East Setauket 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 New York surgeons.

What does the Medicare data for Dr. Mallo 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. Mallo's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 61 procedures shown here.

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

Yes. Dr. Mallo's Medicare-recorded volume has increased from 15 procedures in 2014 to 61 in the most recent data, a 307% increase over 8 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 61 procedures in 2023.

Which hospitals is Dr. Mallo affiliated with?

According to CMS facility affiliation data, Dr. Mallo is affiliated with John T Mather Memorial Hospital Of Port Jefferson, St Charles Hospital.

How does Dr. Mallo compare to other orthopedic surgeons in East Setauket?

Among the 6 orthopedic surgeons in East Setauket, Dr. Mallo ranks #5 by total Medicare procedure volume. The highest-volume surgeon in East Setauket has 292 verified Medicare procedures.

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

John T Mather Memorial Hospital Of Port Jefferson (5 out of 5 CMS stars, hip/knee complication rate similar to national average); St Charles Hospital (4 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 East Setauket, New York

Dr. Mallo's 61 Medicare procedures are below the East Setauket average of 126. The table below compares verified procedure volumes for orthopedic surgeons practicing in East Setauket.

SurgeonProceduresSpecialties
Dr. James Nicholson 292 Hip, Knee
Dr. Douglas Petraco 182 Hip, Knee
Dr. Fazel Khan 95 Hip, Knee
Dr. Christopher Mileto 93 Hip, Knee, Shoulder
Dr. John Brennan 32 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. Gregory Mallo, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ny/dr-gregory-mallo-east-setauket.html

Link: https://orthoprocedures.com/surgeons/ny/dr-gregory-mallo-east-setauket.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.