Dr. Peter Dirksmeier, M.D.

Orthopedic Surgery

33 procedures2 hospitalsSomersworth, NHUpdated May 2026

Contact & Location

603-742-2007
Phone: 603-742-2007
Practice phone listed in the NPI registry
7 Marsh Brook Dr, Suite 100
Somersworth, NH 03878
Current practice address per the CMS NPPES registry (self-reported to the registry, last updated September 2018). Registry checked August 2026.
NPI: 1831124361
Credentials: M.D.
Active Medicare provider (NPI verified)
20 years of practice experience
Licensed M.D.
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps
National Comparison by Procedure
Hip 33 vs 36 national avg 0.9x
avg

Compared with 4,542 hip surgeons in the 2024 Medicare dataset.

Dr. Dirksmeier performs more hip replacement procedures than 38% of orthopedic surgeons in New Hampshire, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #21 of 34 ranked hip surgeons in New Hampshire.

About Dr. Dirksmeier

Practice. Dr. Peter Dirksmeier is a board-certified orthopedic surgeon practicing in Somersworth, New Hampshire. The latest annual CMS data records 33 hip replacements. That is #21 in New Hampshire for hip replacement. A Medicare provider since 2006.

Trend. Medicare records run from 2013 to 2024, 10 years. Volume rose from 14 procedures a year to 33, up 136%.

National context. Among 4,542 hip replacement surgeons tracked nationally, 33 procedures is near the national average of 36.

Local context. Somersworth has 4 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.

Verified Medicare Cases

Hip Replacement
33 verified cases
#21 in New Hampshire
Estimated 2024 total: 100 – 130 procedures (all insurers)
Medicare fee-for-service share of national volume in 2024: 25% to 33% for hip 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 25% to 33% for hip 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. Dirksmeier Compares

Procedure volume compared to the New Hampshire state average.

Hip Average
33 Avg: 40
Dr. Dirksmeier New Hampshire Average

Volume Trend Analysis

Dr. Dirksmeier's Medicare-recorded procedure volume has trended upward over 10 years, increasing 136% from 14 procedures in 2013 to 33 in the most recent data.

Years of Data 10
2024 Volume 33
Peak Volume 39 (2017)
Trend Growing

Hospital Affiliations & Quality

H
Wentworth-Douglass Hospital
4/5
Dover, NH
Similar to national avg
H
Huggins Hospital
3/5
Wolfeboro, NH

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 Hip Replacement

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

Hip Replacement Recovery Overview

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

Week 1-2 Walking with assistive device (walker or cane). Gentle range-of-motion exercises begin. Most patients can manage basic self-care.
Week 3-6 Transition to walking independently. Resume driving short distances. Physical therapy focuses on strength and balance.
Week 7-12 Return to most daily activities and light exercise. Stair climbing improves. Many patients return to desk work.
Month 4-6 Full recovery for most patients. Resume recreational activities, golf, swimming, and low-impact exercise.

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

Frequently Asked Questions About Dr. Dirksmeier

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

Dr. Dirksmeier has performed 33 Medicare-verified joint replacement procedures. The New Hampshire average is 68 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Dirksmeier ranks #39 out of 56 orthopedic surgeons in New Hampshire.

What types of joint replacement does Dr. Dirksmeier perform?

Dr. Dirksmeier's reported Medicare volume is focused on hip replacement, with 33 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Are there other orthopedic surgeons near Dr. Dirksmeier in Somersworth?

Yes. There are 4 orthopedic surgeons in Somersworth 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 Hampshire surgeons.

What does the Medicare data for Dr. Dirksmeier 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 25% to 33% for hip replacement, which puts Dr. Dirksmeier's total volume across all insurers at roughly 100 to 130 procedures against the 33 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. Dirksmeier's procedure volume changed over time?

Yes. Dr. Dirksmeier's Medicare-recorded volume has increased from 14 procedures in 2013 to 33 in the most recent data, a 136% increase over 10 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 39 procedures in 2017.

Which hospitals is Dr. Dirksmeier affiliated with?

According to CMS facility affiliation data, Dr. Dirksmeier is affiliated with Wentworth-Douglass Hospital, Huggins Hospital.

How does Dr. Dirksmeier compare to other orthopedic surgeons in Somersworth?

Among the 4 orthopedic surgeons in Somersworth, Dr. Dirksmeier ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Somersworth has 177 verified Medicare procedures.

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

Wentworth-Douglass Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Huggins Hospital (3 out of 5 CMS stars). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.

Other Orthopedic Surgeons in Somersworth, New Hampshire

Dr. Dirksmeier's 33 Medicare procedures are below the Somersworth average of 100. The table below compares verified procedure volumes for orthopedic surgeons practicing in Somersworth.

SurgeonProceduresSpecialties
Dr. Ira Parsons 177 Hip, Knee, Shoulder
Dr. Joseph Konopka 111 Hip, Knee
Dr. David Thut 78 Knee

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. Peter Dirksmeier, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/nh/dr-peter-dirksmeier-somersworth.html

Link: https://orthoprocedures.com/surgeons/nh/dr-peter-dirksmeier-somersworth.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.