Dr. James O'dowd, M.D.

Orthopedic Surgery
Ranked 96 of 491#96of 491
Knee rank in California

108 procedures4 hospitalsPasadena, CAUpdated May 2026

Contact & Location

626-795-8051
Phone: 626-795-8051
Practice phone listed in the NPI registry
800 S Raymond Ave
Pasadena, CA 91105
Current practice address per the CMS NPPES registry (self-reported to the registry, last updated July 2024). Registry checked August 2026.
Other locations registered to this NPI:
1520 San Pablo St, Suite 2000
Los Angeles, CA 90033
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: 1093126336
Credentials: M.D.
Active Medicare provider (NPI verified)
12 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
Hip 40 vs 36 national avg 1.1x
avg
Knee 68 vs 45 national avg 1.5x
avg

Compared with 4,542 hip surgeons and 6,612 knee surgeons in the 2024 Medicare dataset.

Dr. O'dowd performs more knee replacement procedures than 80% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #96 of 491 ranked knee surgeons in California.

About Dr. O'dowd

Practice. Dr. James O'dowd is a board-certified orthopedic surgeon practicing in Pasadena, California. The latest annual CMS data records 68 knee replacements and 40 hip replacements, 108 procedures in all. That is #96 in California for knee replacement. A Medicare provider since 2014.

Trend. Medicare records run from 2020 to 2024, 5 years. Volume rose from 11 procedures a year to 108, up 882%.

National context. Among 6,612 knee replacement surgeons tracked nationally, 68 procedures is above the national average of 45.

Local context. Pasadena has 10 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.

Verified Medicare Cases

Knee Replacement
68 verified cases
#96 in California
Hip Replacement
40 verified cases
#115 in California
Estimated 2024 total: 360 – 460 procedures (all insurers)
Medicare fee-for-service share of national volume in 2024: 23% to 28% for knee replacement, 25% to 33% for hip 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 23% to 28% for knee replacement, 25% to 33% for hip 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. O'dowd Compares

Procedure volume compared to the California state average.

Hip Average
40 Avg: 41
Knee High
68 Avg: 47
Dr. O'dowd California Average

Volume Trend Analysis

Dr. O'dowd's Medicare-recorded procedure volume has trended upward over 5 years, increasing 882% from 11 procedures in 2020 to 108 in the most recent data.

Years of Data 5
2024 Volume 108
Peak Volume 108 (2024)
Trend Growing

Hospital Affiliations & Quality

H
Usc Arcadia Hospital
3/5
Arcadia, CA
Similar to national avg
H
Huntington Hospital
2/5
Pasadena, CA
Similar to national avg
H
Casa Colina Hospital
3/5
Pomona, CA
Similar to national avg
H
Emanate Health Foothill Presbyterian Hospital
3/5
Glendora, CA
Low case volume

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 Knee Replacement

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

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. O'dowd

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

Dr. O'dowd has performed 108 Medicare-verified joint replacement procedures. This is significantly above the California average of 68 procedures per surgeon. Dr. O'dowd ranks #101 out of 613 orthopedic surgeons in California.

What types of joint replacement does Dr. O'dowd perform?

Dr. O'dowd's Medicare data shows procedures in knee replacement (68 cases) and hip replacement (40 cases).

Are there other orthopedic surgeons near Dr. O'dowd in Pasadena?

Yes. There are 10 orthopedic surgeons in Pasadena 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. O'dowd 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 23% to 28% for knee replacement, 25% to 33% for hip replacement, which puts Dr. O'dowd's total volume across all insurers at roughly 360 to 460 procedures against the 108 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. O'dowd's procedure volume changed over time?

Yes. Dr. O'dowd's Medicare-recorded volume has increased from 11 procedures in 2020 to 108 in the most recent data, a 882% increase over 5 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 108 procedures in 2024.

Does Dr. O'dowd perform more than one type of joint replacement?

Yes. Dr. O'dowd's Medicare data shows procedures in knee replacement (68 cases), hip replacement (40 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. O'dowd affiliated with?

According to CMS facility affiliation data, Dr. O'dowd is affiliated with Usc Arcadia Hospital, Huntington Hospital, Casa Colina Hospital, Emanate Health Foothill Presbyterian Hospital.

How does Dr. O'dowd compare to other orthopedic surgeons in Pasadena?

Among the 10 orthopedic surgeons in Pasadena, Dr. O'dowd ranks #2 by total Medicare procedure volume. Dr. O'dowd is among the highest-volume surgeons in Pasadena.

What are the quality ratings for hospitals where Dr. O'dowd practices?

Usc Arcadia Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Huntington Hospital (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Casa Colina Hospital (3 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 Pasadena, California

Dr. O'dowd's 108 Medicare procedures are above the Pasadena average of 97. The table below compares verified procedure volumes for orthopedic surgeons practicing in Pasadena.

SurgeonProceduresSpecialties
Dr. Todd Dietrick 253 Hip, Knee
Dr. Micah Berry 104 Hip, Knee, Shoulder
Dr. John Itamura 74 Shoulder
Dr. Timothy Jackson 64 Hip
Dr. Daniel Laster 46 Hip, Knee
Dr. George Tang 30 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.

Cite This Data

APA: OrthoProcedures. (2026). Dr. James O'dowd, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ca/dr-james-odowd-pasadena.html

Link: https://orthoprocedures.com/surgeons/ca/dr-james-odowd-pasadena.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.