#478 in California
Knee

Dr. Richard Thunder, M.D.

Orthopedic Surgery
12 procedures 3 hospitals La Jolla, CA
Latest available Medicare data — updated April 2026
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety — under $50 essentials
National Comparison by Procedure
Knee 12 vs 45 avg (6,720 surgeons)

Dr. Richard Thunder is a board-certified orthopedic surgeon practicing in La Jolla, California. A Medicare provider since 2006, Dr. Thunder has performed 12 Medicare-verified knee replacements, ranking #478 in California.

In California, Dr. Thunder performs below average in knee (12 vs 45 avg).

Dr. Thunder's Medicare data shows a focused knee replacement practice with 12 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.

Beyond general orthopedic surgery, Dr. Thunder holds additional credentials in Orthopaedic Trauma, reflecting subspecialty training that may benefit patients with complex joint conditions.

La Jolla is home to 16 orthopedic surgeons in the current Medicare dataset. Patients in the La Jolla area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Dr. Thunder's Medicare data spans 4 years, beginning in 2013. Volume peaked at 26 procedures in 2018 before settling at 12 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.

Dr. Thunder's 12 knee replacement procedures is below the national average of 45 among 6,720 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.

Verified Medicare Cases

Knee Replacement
12 verified cases
#478 in California
Estimated total: 30 – 40 procedures (all insurers)
Based on Medicare FFS representing 33–37% of national joint replacement volume
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. Thunder Compares

Procedure volume compared to the California state average.

Knee Below Avg
12 Avg: 45
Dr. Thunder California Average

Contact & Location

Phone: 858-535-1075
9850 Genesee Avenue
La Jolla, CA 92037
NPI: 1780602276
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

Volume Trend Analysis

Dr. Thunder's recorded volume peaked at 26 procedures in 2018 and stood at 12 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.

Years of Data 4
2023 Volume 12
Peak Volume 26 (2018)
Trend Declining

Hospital Affiliations & Quality

H
Scripps Memorial Hospital La Jolla
★★★★★
La Jolla, CA
Similar to national avg
H
Northern Inyo Hospital
Bishop, CA
Low case volume
H
Scripps Memorial Hospital - Encinitas
★★★★★
Encinitas, CA
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.

Knee Replacement Recovery Overview

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

Week 1-2 Walking with assistive device. Knee bending exercises begin immediately. Ice therapy and elevation for swelling control.
Week 3-6 Increased range of motion (target 90 degrees). Walking longer distances. Physical therapy intensifies with strengthening exercises.
Week 7-12 Most patients walk without assistive devices. Resume driving and desk work. Continue PT for strength and flexibility.
Month 4-6 Near-full recovery. Resume most recreational activities. Some swelling and stiffness may persist but continues improving.

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

Frequently Asked Questions About Dr. Thunder

How does Dr. Thunder's procedure volume compare to other California surgeons?

Dr. Thunder has performed 12 Medicare-verified joint replacement procedures. The California average is 65 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Thunder ranks #581 out of 608 orthopedic surgeons in California.

What types of joint replacement does Dr. Thunder perform?

Dr. Thunder's reported Medicare volume is focused on knee replacement, with 12 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Are there other orthopedic surgeons near Dr. Thunder in La Jolla?

Yes. There are 16 orthopedic surgeons in La Jolla 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. Thunder 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. Thunder's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 12 procedures shown here.

Has Dr. Thunder's procedure volume changed over time?

Dr. Thunder's Medicare-recorded volume peaked at 26 procedures in 2018 and was 12 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. Thunder affiliated with?

According to CMS facility affiliation data, Dr. Thunder is affiliated with Scripps Memorial Hospital La Jolla, Northern Inyo Hospital, Scripps Memorial Hospital - Encinitas.

How does Dr. Thunder compare to other orthopedic surgeons in La Jolla?

Among the 16 orthopedic surgeons in La Jolla, Dr. Thunder ranks #16 by total Medicare procedure volume. The highest-volume surgeon in La Jolla has 193 verified Medicare procedures.

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

Scripps Memorial Hospital La Jolla (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Northern Inyo Hospital (insufficient case volume for complication rate comparison); Scripps Memorial Hospital - Encinitas (5 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 La Jolla, California

Dr. Thunder's 12 Medicare procedures are below the La Jolla average of 108. The table below compares verified procedure volumes for orthopedic surgeons practicing in La Jolla.

SurgeonProceduresSpecialties
Dr. William Bugbee 193 Hip, Knee
Dr. Steven Copp 157 Hip, Knee
Dr. Jeffrey Wilde 111 Hip, Knee
Dr. Anna Kulidjian 99 Hip, Knee
Dr. F. Craig Swenson 96 Hip, Knee
Dr. Timothy Horan 90 Hip, Knee

Patient Reviews & Ratings

OrthoProcedures.com focuses on verified Medicare procedure data. For patient reviews, ratings, and appointment scheduling, visit these trusted platforms:

These links lead to third-party websites. OrthoProcedures.com is not affiliated with these platforms and cannot verify the accuracy of reviews.

Cite This Data

APA: OrthoProcedures. (2026). Dr. Richard Thunder, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ca/dr-richard-thunder-la-jolla.html

Link: https://orthoprocedures.com/surgeons/ca/dr-richard-thunder-la-jolla.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.