Dr. Mark Mason, MD

Orthopedic Surgery
66 procedures Hershey, PA
Latest available Medicare data — updated April 2026
Growing Volume

Contact & Location

Phone: 800-243-1455
Practice phone listed in the NPI registry
30 Hope Dr
Hershey, PA 17033
NPI: 1811958887
Credentials: MD
Active Medicare provider (NPI verified)
20 years of practice experience
Licensed MD
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 28 vs 36 avg (4,532 surgeons)
Knee 38 vs 45 avg (6,599 surgeons)

Dr. Mark Mason is a board-certified orthopedic surgeon practicing in Hershey, Pennsylvania. A Medicare provider since 2006, Dr. Mason has performed 38 Medicare-verified knee replacements (#133 in Pennsylvania) and 28 hip replacements, for a combined total of 66 procedures.

In Pennsylvania, Dr. Mason performs near average in knee (38 vs 47 avg), below average in hip (28 vs 37 avg).

Dr. Mason's reported Medicare volume is split between knee replacements (38 cases) and hip replacements (28 cases).

Hershey is home to 7 orthopedic surgeons in the current Medicare dataset. Patients in the Hershey area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Mason extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 12 to 66 in the most recent data, a 450% increase. This sustained growth reflects an expanding joint replacement practice.

Among 6,599 knee replacement surgeons tracked nationally, Dr. Mason's 38 verified procedures is near the national average of 45.

Verified Medicare Cases

Knee Replacement
38 verified cases
#133 in Pennsylvania
Hip Replacement
28 verified cases
#108 in Pennsylvania
Estimated total: 180 – 200 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. Mason Compares

Procedure volume compared to the Pennsylvania state average.

Hip Below Avg
28 Avg: 37
Knee Average
38 Avg: 47
Dr. Mason Pennsylvania Average

Volume Trend Analysis

Dr. Mason's Medicare-recorded procedure volume has trended upward over 12 years, increasing 450% from 12 procedures in 2013 to 66 in the most recent data.

Years of Data 12
2024 Volume 66
Peak Volume 86 (2018)
Trend Growing

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. Mason

How does Dr. Mason's procedure volume compare to other Pennsylvania surgeons?

Dr. Mason has performed 66 Medicare-verified joint replacement procedures. This is in line with the Pennsylvania average of 66 procedures per surgeon. Dr. Mason ranks #123 out of 376 orthopedic surgeons in Pennsylvania.

What types of joint replacement does Dr. Mason perform?

Dr. Mason's Medicare data shows procedures in knee replacement (38 cases) and hip replacement (28 cases).

Are there other orthopedic surgeons near Dr. Mason in Hershey?

Yes. There are 7 orthopedic surgeons in Hershey 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 Pennsylvania surgeons.

What does the Medicare data for Dr. Mason 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. Mason's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 66 procedures shown here.

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

Yes. Dr. Mason's Medicare-recorded volume has increased from 12 procedures in 2013 to 66 in the most recent data, a 450% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 86 procedures in 2018.

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

Yes. Dr. Mason's Medicare data shows procedures in knee replacement (38 cases), hip replacement (28 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

How does Dr. Mason compare to other orthopedic surgeons in Hershey?

Among the 7 orthopedic surgeons in Hershey, Dr. Mason ranks #3 by total Medicare procedure volume. Dr. Mason is among the highest-volume surgeons in Hershey.

Other Orthopedic Surgeons in Hershey, Pennsylvania

Dr. Mason's 66 Medicare procedures are above the Hershey average of 45. The table below compares verified procedure volumes for orthopedic surgeons practicing in Hershey.

SurgeonProceduresSpecialties
Dr. Arun Kumar 80 Hip, Knee
Dr. Charles Davis 67 Hip, Knee
Dr. Nikkole Haines 44 Hip, Knee
Dr. Gary Updegrove 26 Shoulder
Dr. April Armstrong 17 Shoulder
Dr. Nathan Lanham 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 Mason, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/pa/dr-mark-mason-hershey.html

Link: https://orthoprocedures.com/surgeons/pa/dr-mark-mason-hershey.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.