Shoulder
Dr. David Johnson, M.D.
Dr. David Johnson is a board-certified orthopedic surgeon practicing in Biddeford, Maine. A Medicare provider since 2006, Dr. Johnson has performed 16 Medicare-verified shoulder replacements, ranking #8 in Maine.
In Maine, Dr. Johnson performs below average in shoulder (16 vs 23 avg).
Dr. Johnson's Medicare data shows a focused shoulder replacement practice with 16 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.
Biddeford is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the Biddeford area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Johnson's Medicare data spans 10 years, beginning in 2013. Volume peaked at 27 procedures in 2019 before settling at 16 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Johnson's 16 shoulder replacement procedures is below the national average of 28 among 2,092 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Medicare Cases
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. Johnson Compares
Procedure volume compared to the Maine state average.
Contact & Location
Biddeford, ME 04005
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Johnson's recorded volume peaked at 27 procedures in 2019 and stood at 16 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
Hospital Affiliations & Quality
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:
A step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
Home Safety: Creating Your Recovery SanctuaryRoom-by-room modifications, equipment recommendations, and fall-prevention strategies to prepare your home for a safe post-surgical recovery.
Medicare Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
Shoulder Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after shoulder replacement surgery:
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. Johnson
How does Dr. Johnson's procedure volume compare to other Maine surgeons?
Dr. Johnson has performed 16 Medicare-verified joint replacement procedures. The Maine average is 48 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Johnson ranks #37 out of 44 orthopedic surgeons in Maine.
What types of joint replacement does Dr. Johnson perform?
Dr. Johnson's reported Medicare volume is focused on shoulder replacement, with 16 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Johnson with shoulder replacement surgery?
Dr. Johnson ranks #8 in Maine for shoulder replacement with 16 Medicare-verified procedures. This high ranking among 44 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Johnson in Biddeford?
Yes. There are 3 orthopedic surgeons in Biddeford 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 Maine surgeons.
What does the Medicare data for Dr. Johnson 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. Johnson's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 16 procedures shown here.
Has Dr. Johnson's procedure volume changed over time?
Dr. Johnson's Medicare-recorded volume peaked at 27 procedures in 2019 and was 16 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.
Which hospitals is Dr. Johnson affiliated with?
According to CMS facility affiliation data, Dr. Johnson is affiliated with Mainehealth Maine Medical Center.
How does Dr. Johnson compare to other orthopedic surgeons in Biddeford?
Among the 3 orthopedic surgeons in Biddeford, Dr. Johnson ranks #3 by total Medicare procedure volume. Dr. Johnson is among the highest-volume surgeons in Biddeford.
What are the quality ratings for hospitals where Dr. Johnson practices?
Mainehealth Maine 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 Biddeford, Maine
Dr. Johnson's 16 Medicare procedures are below the Biddeford average of 45. The table below compares verified procedure volumes for orthopedic surgeons practicing in Biddeford.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Jeffrey Bush | 77 | Hip, Knee |
| Dr. Meredith Mayo | 42 | Shoulder |
Patient Reviews & Ratings
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