Dr. Patrick McCallum, M.D.

Orthopedic Surgery

57 procedures3 hospitalsSeneca, SCUpdated May 2026

Contact & Location

864-482-6000
Phone: 864-482-6000
Practice phone listed in the NPI registry
10630 Clemson Blvd, Suite 100
Seneca, SC 29678
Current practice address per the CMS NPPES registry (self-reported to the registry, last updated July 2021). Registry checked August 2026.
NPI: 1356300040
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
National Comparison by Procedure
Knee 35 vs 45 national avg 0.8x
avg
Shoulder 22 vs 29 national avg 0.8x
avg

Compared with 6,612 knee surgeons and 2,217 shoulder surgeons in the 2024 Medicare dataset.

Dr. McCallum performs more knee replacement procedures than 39% of orthopedic surgeons in South Carolina, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #73 of 120 ranked knee surgeons in South Carolina.

About Dr. McCallum

Practice. Dr. Patrick McCallum is a board-certified orthopedic surgeon practicing in Seneca, South Carolina. The latest annual CMS data records 35 knee replacements and 22 shoulder replacements, 57 procedures in all. That is #73 in South Carolina for knee replacement. A Medicare provider since 2006.

Trend. Medicare records run from 2013 to 2024, 12 years. Volume has held between 46 and 73 procedures a year.

National context. Among 6,612 knee replacement surgeons tracked nationally, 35 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.

Local context. Seneca has 8 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.

Verified Medicare Cases

Knee Replacement
35 verified cases
#73 in South Carolina
Shoulder Replacement
22 verified cases
#27 in South Carolina
Estimated 2024 total: 180 – 230 procedures (all insurers)
Medicare fee-for-service share of national volume in 2024: 23% to 28% for knee replacement, 29% to 37% for shoulder replacement
How is this estimated?

Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 23% to 28% for knee replacement, 29% to 37% for shoulder replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.

How Dr. McCallum Compares

Procedure volume compared to the South Carolina state average.

Knee Below Avg
35 Avg: 58
Shoulder Below Avg
22 Avg: 29
Dr. McCallum South Carolina Average

Volume Trend Analysis

Dr. McCallum's procedure volume has been consistent across 12 years of Medicare data, ranging from 46 to 73 procedures per year. This stability suggests a well-established joint replacement practice.

Years of Data 12
2024 Volume 57
Peak Volume 73 (2017)
Trend Stable

Hospital Affiliations & Quality

H
Prisma Health Oconee Memorial Hospital
3/5
Seneca, SC
Similar to national avg
H
Prisma Health Baptist Easley Hospital
2/5
Easley, SC
H
Self Regional Healthcare
3/5
Greenwood, SC
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. McCallum

How does Dr. McCallum's procedure volume compare to other South Carolina surgeons?

Dr. McCallum has performed 57 Medicare-verified joint replacement procedures. The South Carolina average is 76 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. McCallum ranks #72 out of 158 orthopedic surgeons in South Carolina.

What types of joint replacement does Dr. McCallum perform?

Dr. McCallum's Medicare data shows procedures in knee replacement (35 cases) and shoulder replacement (22 cases).

Are there other orthopedic surgeons near Dr. McCallum in Seneca?

Yes. There are 8 orthopedic surgeons in Seneca 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 South Carolina surgeons.

What does the Medicare data for Dr. McCallum represent?

The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 23% to 28% for knee replacement, 29% to 37% for shoulder replacement, which puts Dr. McCallum's total volume across all insurers at roughly 180 to 230 procedures against the 57 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.

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

Dr. McCallum's procedure volume has been relatively stable over 12 years of Medicare data, ranging from 46 to 73 procedures per year between 2013 and 2024. Consistent volume over multiple years reflects a steady joint replacement practice.

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

Yes. Dr. McCallum's Medicare data shows procedures in knee replacement (35 cases), shoulder replacement (22 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. McCallum affiliated with?

According to CMS facility affiliation data, Dr. McCallum is affiliated with Prisma Health Oconee Memorial Hospital, Prisma Health Baptist Easley Hospital, Self Regional Healthcare.

How does Dr. McCallum compare to other orthopedic surgeons in Seneca?

Among the 8 orthopedic surgeons in Seneca, Dr. McCallum ranks #1 by total Medicare procedure volume. Dr. McCallum has the highest verified Medicare volume in the city.

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

Prisma Health Oconee Memorial Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Prisma Health Baptist Easley Hospital (2 out of 5 CMS stars); Self Regional Healthcare (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 Seneca, South Carolina

Dr. McCallum's 57 Medicare procedures are above the Seneca average of 28. The table below compares verified procedure volumes for orthopedic surgeons practicing in Seneca.

SurgeonProceduresSpecialties
Dr. Steven Martin 29 Knee
Dr. William Brown 27 Hip, Knee
Dr. John Sloboda 23 Hip
Dr. Nathan Moroski 23 Knee
Dr. Jeffrey Hensarling 21 Knee
Dr. James Mills 15 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. Patrick McCallum, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/sc/dr-patrick-mccallum-seneca.html

Link: https://orthoprocedures.com/surgeons/sc/dr-patrick-mccallum-seneca.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.