Dr. Karen Boselli, M.D.

Orthopedic Surgery
Ranked 3 of 14#3of 14
Shoulder rank in New Hampshire

52 procedures5 hospitalsConcord, NHUpdated May 2026

Contact & Location

603-224-3368
Phone: 603-224-3368
Practice phone listed in the NPI registry
264 Pleasant Street
Concord, NH 03301
Current practice address per the CMS NPPES registry (self-reported to the registry, last updated January 2024). Registry checked August 2026.
NPI: 1366502932
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
Shoulder 52 vs 29 national avg 1.8x
avg

Compared with 2,217 shoulder surgeons in the 2024 Medicare dataset.

Dr. Boselli performs more joint replacement procedures than 42% of orthopedic surgeons in New Hampshire, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #32 of 56 orthopedic surgeons in New Hampshire.

About Dr. Boselli

Practice. Dr. Karen Boselli is a board-certified orthopedic surgeon practicing in Concord, New Hampshire. The latest annual CMS data records 52 shoulder replacements. That is #3 in New Hampshire for shoulder replacement. Dr. Boselli also holds credentials in Sports Medicine. A Medicare provider since 2006.

Trend. Medicare records run from 2014 to 2024, 11 years. Volume rose from 19 procedures a year to 52, up 174%.

National context. Among 2,217 shoulder replacement surgeons tracked nationally, 52 procedures is above the national average of 29.

Local context. Concord has 9 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.

Verified Medicare Cases

Shoulder Replacement
52 verified cases
#3 in New Hampshire
Estimated 2024 total: 140 – 180 procedures (all insurers)
Medicare fee-for-service share of national volume in 2024: 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 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. Boselli Compares

Procedure volume compared to the New Hampshire state average.

Shoulder High
52 Avg: 30
Dr. Boselli New Hampshire Average

Volume Trend Analysis

Dr. Boselli's Medicare-recorded procedure volume has trended upward over 11 years, increasing 174% from 19 procedures in 2014 to 52 in the most recent data.

Years of Data 11
2024 Volume 52
Peak Volume 54 (2023)
Trend Growing

Hospital Affiliations & Quality

H
Concord Hospital
3/5
Concord, NH
Similar to national avg
H
Concord Hospital- Laconia
3/5
Laconia, NH
Low case volume
H
Monadnock Community Hospital
2/5
Peterborough, NH
Low case volume
H
Elliot Hospital
2/5
Manchester, 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 Shoulder Replacement

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

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. Boselli

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

Dr. Boselli has performed 52 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. Boselli ranks #32 out of 56 orthopedic surgeons in New Hampshire.

What types of joint replacement does Dr. Boselli perform?

Dr. Boselli's reported Medicare volume is focused on shoulder replacement, with 52 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

How experienced is Dr. Boselli with shoulder replacement surgery?

Dr. Boselli ranks #3 in New Hampshire for shoulder replacement with 52 Medicare-verified procedures. This high ranking among 56 state surgeons indicates significant experience with this specific procedure.

Are there other orthopedic surgeons near Dr. Boselli in Concord?

Yes. There are 9 orthopedic surgeons in Concord 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. Boselli 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 29% to 37% for shoulder replacement, which puts Dr. Boselli's total volume across all insurers at roughly 140 to 180 procedures against the 52 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. Boselli's procedure volume changed over time?

Yes. Dr. Boselli's Medicare-recorded volume has increased from 19 procedures in 2014 to 52 in the most recent data, a 174% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 54 procedures in 2023.

Which hospitals is Dr. Boselli affiliated with?

According to CMS facility affiliation data, Dr. Boselli is affiliated with Concord Hospital, Concord Hospital- Laconia, Monadnock Community Hospital, Elliot Hospital, Huggins Hospital.

How does Dr. Boselli compare to other orthopedic surgeons in Concord?

Among the 9 orthopedic surgeons in Concord, Dr. Boselli ranks #5 by total Medicare procedure volume. The highest-volume surgeon in Concord has 161 verified Medicare procedures.

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

Concord Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Concord Hospital- Laconia (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Monadnock Community Hospital (2 out of 5 CMS stars, insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.

Other Orthopedic Surgeons in Concord, New Hampshire

Dr. Boselli's 52 Medicare procedures are below the Concord average of 94. The table below compares verified procedure volumes for orthopedic surgeons practicing in Concord.

SurgeonProceduresSpecialties
Dr. Jason Desmarais 161 Hip, Knee
Dr. Jeffrey Wiley 148 Hip, Knee
Dr. Neil Dion 133 Hip, Knee
Dr. Andrew Hagar 72 Hip, Knee
Dr. Stephen Fox 48 Knee
Dr. Sean Burns 44 Hip, 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. Karen Boselli, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/nh/dr-karen-boselli-concord.html

Link: https://orthoprocedures.com/surgeons/nh/dr-karen-boselli-concord.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.