Dr. John Daigneault, M.D.

Orthopedic Surgery

33 procedures1 hospitalBranford, CTUpdated May 2026

Contact & Location

203-483-2509
Phone: 203-483-2509
Practice phone listed in the NPI registry
84 N Main St
Branford, CT 06405
Current practice address per the CMS NPPES registry (self-reported to the registry, last updated May 2026). Registry checked August 2026.
Rankings and procedure volumes on this page are based on 2024 Medicare claims data billed from Hamden, CT.
Other locations registered to this NPI:
235 Boston Post Rd
Orange, CT 06477
701 N Colony Rd
Wallingford, CT 06492
2416 Whitney Ave Ste 3
Hamden, CT 06518
Additional practice sites listed in the surgeon's own CMS NPPES registry entry. The registry does not record which site a surgeon primarily works from, so call ahead to confirm where an appointment takes place.
NPI: 1477532489
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 33 vs 29 national avg 1.1x
avg

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

Dr. Daigneault performs more shoulder replacement procedures than 65% of orthopedic surgeons in Connecticut, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #9 of 26 ranked shoulder surgeons in Connecticut.

About Dr. Daigneault

Practice. Dr. John Daigneault is a board-certified orthopedic surgeon practicing in Hamden, Connecticut. The latest annual CMS data records 33 shoulder replacements. That is #9 in Connecticut for shoulder replacement. Dr. Daigneault also holds credentials in Sports Medicine. A Medicare provider since 2006.

Trend. Medicare records run from 2015 to 2024, 10 years. Volume rose from 26 procedures a year to 33, up 27%.

National context. Among 2,217 shoulder replacement surgeons tracked nationally, 33 procedures is near the national average of 29.

Local context. Hamden 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

Shoulder Replacement
33 verified cases
#9 in Connecticut
Estimated 2024 total: 90 – 110 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. Daigneault Compares

Procedure volume compared to the Connecticut state average.

Shoulder Average
33 Avg: 28
Dr. Daigneault Connecticut Average

Volume Trend Analysis

Dr. Daigneault's Medicare-recorded procedure volume has trended upward over 10 years, increasing 27% from 26 procedures in 2015 to 33 in the most recent data.

Years of Data 10
2024 Volume 33
Peak Volume 37 (2021)
Trend Growing

Hospital Affiliations & Quality

H
Midstate Medical Center
4/5
Meriden, CT
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 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. Daigneault

How does Dr. Daigneault's procedure volume compare to other Connecticut surgeons?

Dr. Daigneault has performed 33 Medicare-verified joint replacement procedures. The Connecticut average is 49 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Daigneault ranks #53 out of 94 orthopedic surgeons in Connecticut.

What types of joint replacement does Dr. Daigneault perform?

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

How experienced is Dr. Daigneault with shoulder replacement surgery?

Dr. Daigneault ranks #9 in Connecticut for shoulder replacement with 33 Medicare-verified procedures. This high ranking among 94 state surgeons indicates significant experience with this specific procedure.

Where is Dr. Daigneault's practice located?

Dr. Daigneault's current practice address is in Branford, CT. That address is the current practice address in Dr. Daigneault's own CMS NPPES registry entry, which providers maintain themselves. The Medicare claims data used for the rankings on this page was billed from Hamden, Connecticut.

What does the Medicare data for Dr. Daigneault 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. Daigneault's total volume across all insurers at roughly 90 to 110 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. Daigneault's procedure volume changed over time?

Yes. Dr. Daigneault's Medicare-recorded volume has increased from 26 procedures in 2015 to 33 in the most recent data, a 27% increase over 10 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 37 procedures in 2021.

Which hospitals is Dr. Daigneault affiliated with?

According to CMS facility affiliation data, Dr. Daigneault is affiliated with Midstate Medical Center.

How does Dr. Daigneault compare to other orthopedic surgeons in Hamden?

Among the 8 orthopedic surgeons in Hamden, Dr. Daigneault ranks #5 by total Medicare procedure volume. The highest-volume surgeon in Hamden has 81 verified Medicare procedures.

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

Midstate Medical Center (4 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 Hamden, Connecticut

Dr. Daigneault's 33 Medicare procedures are below the Hamden average of 50. The table below compares verified procedure volumes for orthopedic surgeons practicing in Hamden.

SurgeonProceduresSpecialties
Dr. Stephen Nelson 81 Hip, Knee
Dr. John McCallum 81 Knee
Dr. John Irving 69 Hip, Knee
Dr. Eric Padegimas 45 Shoulder
Dr. Derek Shia 23 Shoulder
Dr. Kenoma Anighoro 16 Hip

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. John Daigneault, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ct/dr-john-daigneault-hamden.html

Link: https://orthoprocedures.com/surgeons/ct/dr-john-daigneault-hamden.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.