Dr. Robert Montgomery, M.D.

Orthopedic Surgery
51 procedures 1 hospital Laguna Woods, CA
Latest available Medicare data — updated April 2026
Growing Volume

Contact & Location

Phone: 949-586-3200
Practice phone listed in the NPI registry
24331 El Toro Rd Ste 200
Laguna Woods, CA 92637
NPI: 1952304594
Credentials: M.D.
Active Medicare provider (NPI verified)
21 years of practice experience
Licensed M.D.
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety, all under $50
National Comparison by Procedure
Knee 51 vs 45 avg (6,599 surgeons)

Dr. Robert Montgomery is a board-certified orthopedic surgeon practicing in Laguna Woods, California. A Medicare provider since 2005, Dr. Montgomery has performed 51 Medicare-verified knee replacements, ranking #137 in California.

In California, Dr. Montgomery performs near average in knee (51 vs 47 avg).

Dr. Montgomery's Medicare data shows a focused knee replacement practice with 51 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.

Laguna Woods is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the Laguna Woods area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Montgomery extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 24 to 51 in the most recent data, a 113% increase. This sustained growth reflects an expanding joint replacement practice.

Among 6,599 knee replacement surgeons tracked nationally, Dr. Montgomery's 51 verified procedures is near the national average of 45.

Verified Medicare Cases

Knee Replacement
51 verified cases
#137 in California
Estimated total: 140 – 150 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. Montgomery Compares

Procedure volume compared to the California state average.

Knee Average
51 Avg: 47
Dr. Montgomery California Average

Volume Trend Analysis

Dr. Montgomery's Medicare-recorded procedure volume has trended upward over 12 years, increasing 113% from 24 procedures in 2013 to 51 in the most recent data.

Years of Data 12
2024 Volume 51
Peak Volume 85 (2016)
Trend Growing

Hospital Affiliations & Quality

H
Memorialcare Saddleback Medical Center
4/5
Laguna Hills, 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. Montgomery

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

Dr. Montgomery has performed 51 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. Montgomery ranks #265 out of 613 orthopedic surgeons in California.

What types of joint replacement does Dr. Montgomery perform?

Dr. Montgomery's reported Medicare volume is focused on knee replacement, with 51 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Are there other orthopedic surgeons near Dr. Montgomery in Laguna Woods?

Yes. There are 3 orthopedic surgeons in Laguna Woods 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. Montgomery 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. Montgomery's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 51 procedures shown here.

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

Yes. Dr. Montgomery's Medicare-recorded volume has increased from 24 procedures in 2013 to 51 in the most recent data, a 113% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 85 procedures in 2016.

Which hospitals is Dr. Montgomery affiliated with?

According to CMS facility affiliation data, Dr. Montgomery is affiliated with Memorialcare Saddleback Medical Center.

How does Dr. Montgomery compare to other orthopedic surgeons in Laguna Woods?

Among the 3 orthopedic surgeons in Laguna Woods, Dr. Montgomery ranks #2 by total Medicare procedure volume. Dr. Montgomery is among the highest-volume surgeons in Laguna Woods.

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

Memorialcare Saddleback Medical Center (4 out of 5 CMS stars, insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.

Other Orthopedic Surgeons in Laguna Woods, California

Dr. Montgomery's 51 Medicare procedures are below the Laguna Woods average of 61. The table below compares verified procedure volumes for orthopedic surgeons practicing in Laguna Woods.

SurgeonProceduresSpecialties
Dr. Abraham Kim 92 Hip, Knee
Dr. Ari Youderian 39 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. Robert Montgomery, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ca/dr-robert-montgomery-laguna-woods.html

Link: https://orthoprocedures.com/surgeons/ca/dr-robert-montgomery-laguna-woods.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.