Dr. Ari Youderian, M.D.

Orthopedic Surgery
Ranked 30 of 139#30of 139
Shoulder rank in California

39 procedures2 hospitalsLaguna Woods, CAUpdated May 2026

Contact & Location

949-586-3200
Phone: 949-586-3200
Practice phone listed in the NPI registry
24331 El Toro Rd Ste 200
Laguna Woods, CA 92637
Current practice address per the CMS NPPES registry (self-reported to the registry, last updated October 2023). Registry checked August 2026.
Other locations registered to this NPI:
22 Odyssey Ste 205
Irvine, CA 92618
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: 1083818173
Credentials: M.D.
Active Medicare provider (NPI verified)
19 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
Shoulder 39 vs 29 national avg 1.3x
avg

Compared with 2,217 shoulder surgeons in the 2024 Medicare dataset.

Dr. Youderian performs more shoulder replacement procedures than 78% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #30 of 139 ranked shoulder surgeons in California.

About Dr. Youderian

Practice. Dr. Ari Youderian is a board-certified orthopedic surgeon practicing in Laguna Woods, California. The latest annual CMS data records 39 shoulder replacements. That is #30 in California for shoulder replacement. A Medicare provider since 2007.

Trend. Medicare records run from 2013 to 2024, 11 years. Volume rose from 25 procedures a year to 39, up 56%.

National context. Among 2,217 shoulder replacement surgeons tracked nationally, 39 procedures is above the national average of 29.

Local context. Laguna Woods has 3 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.

Verified Medicare Cases

Shoulder Replacement
39 verified cases
#30 in California
Estimated 2024 total: 110 – 130 procedures (all insurers)
Medicare fee-for-service share of national volume in 2024: 29% to 37% for shoulder 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 29% to 37% for shoulder 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. Youderian Compares

Procedure volume compared to the California state average.

Shoulder High
39 Avg: 31
Dr. Youderian California Average

Volume Trend Analysis

Dr. Youderian's Medicare-recorded procedure volume has trended upward over 11 years, increasing 56% from 25 procedures in 2013 to 39 in the most recent data.

Years of Data 11
2024 Volume 39
Peak Volume 46 (2023)
Trend Growing

Hospital Affiliations & Quality

H
Providence Mission Hospital
4/5
Mission Viejo, CA
Similar to national avg
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 Shoulder Replacement

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

Shoulder Replacement Recovery Overview

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

Week 1-3 Arm in a sling for protection. Gentle pendulum exercises under therapist guidance. Focus on pain management and wound care.
Week 4-6 Gradual sling weaning. Begin passive and active-assisted range-of-motion exercises. Light daily activities resume.
Week 7-12 Active range-of-motion exercises. Light strengthening begins. Most patients can drive and perform desk work.
Month 4-6 Progressive strengthening continues. Return to most activities. Full recovery may take 6-12 months for complete shoulder strength.

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. Youderian

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

Dr. Youderian has performed 39 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. Youderian ranks #334 out of 613 orthopedic surgeons in California.

What types of joint replacement does Dr. Youderian perform?

Dr. Youderian's reported Medicare volume is focused on shoulder replacement, with 39 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Are there other orthopedic surgeons near Dr. Youderian 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. Youderian 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 29% to 37% for shoulder replacement, which puts Dr. Youderian's total volume across all insurers at roughly 110 to 130 procedures against the 39 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. Youderian's procedure volume changed over time?

Yes. Dr. Youderian's Medicare-recorded volume has increased from 25 procedures in 2013 to 39 in the most recent data, a 56% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 46 procedures in 2023.

Which hospitals is Dr. Youderian affiliated with?

According to CMS facility affiliation data, Dr. Youderian is affiliated with Providence Mission Hospital, Memorialcare Saddleback Medical Center.

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

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

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

Providence Mission Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); 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. Youderian's 39 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. Robert Montgomery 51 Knee

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. Ari Youderian, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ca/dr-ari-youderian-laguna-woods.html

Link: https://orthoprocedures.com/surgeons/ca/dr-ari-youderian-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.