Dr. Nicholas Gannon, MD
Contact & Location
San Francisco, CA 94158
Dr. Nicholas Gannon is a board-certified orthopedic surgeon practicing in San Francisco, California. Dr. Gannon has performed 19 Medicare-verified hip replacements (#237 in California) and 17 knee replacements, for a combined total of 36 procedures.
In California, Dr. Gannon performs below average in hip (19 vs 41 avg), below average in knee (17 vs 47 avg).
Dr. Gannon's reported Medicare volume is split between hip replacements (19 cases) and knee replacements (17 cases).
San Francisco is home to 23 orthopedic surgeons in the current Medicare dataset. Patients in the San Francisco area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Gannon first appears in the Medicare dataset in 2024. With 1 year of recorded data, the longitudinal trend is still developing.
Dr. Gannon's 19 hip replacement procedures is below the national average of 36 among 4,532 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
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. Gannon Compares
Procedure volume compared to the California state average.
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 Hip Replacement
If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:
Understanding the progression from conservative treatments to surgical intervention, and how to determine when hip replacement becomes the right choice.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
Hip Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after hip replacement surgery:
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. Gannon
How does Dr. Gannon's procedure volume compare to other California surgeons?
Dr. Gannon has performed 36 Medicare-verified joint replacement procedures. The California average is 68 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Gannon ranks #354 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Gannon perform?
Dr. Gannon's Medicare data shows procedures in hip replacement (19 cases) and knee replacement (17 cases).
Are there other orthopedic surgeons near Dr. Gannon in San Francisco?
Yes. There are 23 orthopedic surgeons in San Francisco 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 California surgeons.
What does the Medicare data for Dr. Gannon 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. Gannon's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 36 procedures shown here.
Does Dr. Gannon perform more than one type of joint replacement?
Yes. Dr. Gannon's Medicare data shows procedures in hip replacement (19 cases), knee replacement (17 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Gannon affiliated with?
According to CMS facility affiliation data, Dr. Gannon is affiliated with California Pacific Medical Center - Mission Bernal, Novato Community Hospital, California Pacific Medical Center- Van Ness Campus.
How does Dr. Gannon compare to other orthopedic surgeons in San Francisco?
Among the 23 orthopedic surgeons in San Francisco, Dr. Gannon ranks #15 by total Medicare procedure volume. The highest-volume surgeon in San Francisco has 201 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Gannon practices?
California Pacific Medical Center - Mission Bernal (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Novato Community Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); California Pacific Medical Center- Van Ness Campus (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 San Francisco, California
Dr. Gannon's 36 Medicare procedures are below the San Francisco average of 131. The table below compares verified procedure volumes for orthopedic surgeons practicing in San Francisco.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Jeffrey Barry | 201 | Hip, Knee |
| Dr. Derek Ward | 190 | Hip, Knee |
| Dr. Peter Callander | 177 | Hip, Knee |
| Dr. Erik Hansen | 133 | Hip, Knee |
| Dr. Christopher Cox | 95 | Hip, Knee |
| Dr. John Belzer | 88 | Knee, Shoulder |
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.