#32 in New Hampshire
Knee

Dr. Ronald Michalak, MD

Orthopedic Surgery
22 procedures Peterborough, NH
Latest available Medicare data — updated April 2026
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety — under $50 essentials
National Comparison by Procedure
Knee 22 vs 45 avg (6,720 surgeons)

Dr. Ronald Michalak is a board-certified orthopedic surgeon practicing in Peterborough, New Hampshire. A Medicare provider since 2006, Dr. Michalak has performed 22 Medicare-verified knee replacements, ranking #32 in New Hampshire.

In New Hampshire, Dr. Michalak performs below average in knee (22 vs 48 avg).

Dr. Michalak's Medicare data shows a focused knee replacement practice with 22 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.

Dr. Michalak is the only orthopedic surgeon in Peterborough represented in the current Medicare dataset, serving as the primary local option for patients considering joint replacement surgery in the area.

Dr. Michalak's Medicare data spans 10 years, beginning in 2013. Volume peaked at 53 procedures in 2015 before settling at 22 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.

Dr. Michalak's 22 knee replacement procedures is below the national average of 45 among 6,720 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.

Verified Medicare Cases

Knee Replacement
22 verified cases
#32 in New Hampshire
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. Michalak Compares

Procedure volume compared to the New Hampshire state average.

Knee Below Avg
22 Avg: 48
Dr. Michalak New Hampshire Average

Contact & Location

Phone: 603-924-2144
458 Old Street Rd
Peterborough, NH 03458
NPI: 1093824591
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

Volume Trend Analysis

Dr. Michalak's recorded volume peaked at 53 procedures in 2015 and stood at 22 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.

Years of Data 10
2023 Volume 22
Peak Volume 53 (2015)
Trend Declining

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. Michalak

How does Dr. Michalak's procedure volume compare to other New Hampshire surgeons?

Dr. Michalak has performed 22 Medicare-verified joint replacement procedures. The New Hampshire average is 67 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Michalak ranks #42 out of 54 orthopedic surgeons in New Hampshire.

What types of joint replacement does Dr. Michalak perform?

Dr. Michalak's reported Medicare volume is focused on knee replacement, with 22 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Where is Dr. Michalak's practice located?

Dr. Michalak practices in Peterborough, New Hampshire. The office is located at 458 Old Street Rd, Peterborough, NH 03458. Patients in the surrounding area can consult Dr. Michalak for joint replacement evaluation.

What does the Medicare data for Dr. Michalak 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. Michalak's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 22 procedures shown here.

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

Dr. Michalak's Medicare-recorded volume peaked at 53 procedures in 2015 and was 22 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.

Patient Reviews & Ratings

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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. Ronald Michalak, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/nh/dr-ronald-michalak-peterborough.html

Link: https://orthoprocedures.com/surgeons/nh/dr-ronald-michalak-peterborough.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.