Dr. Peter Rinaldi, DO

Orthopedic Surgery
13 procedures 1 hospital Sacramento, CA

Contact & Location

916-734-5885
Phone: 916-734-5885
Practice phone listed in the NPI registry
4860 Y St
Sacramento, CA 95817
NPI: 1083997449
Credentials: DO
Active Medicare provider (NPI verified)
15 years of practice experience
Licensed DO
Licensed surgical specialist
Board-certified orthopedic surgeon
Sports medicine specialist
Contact information available
Find Practice on Google Maps
National Comparison by Procedure
Knee 13 vs 45 national avg (6,599 surgeons)

About Dr. Rinaldi

Dr. Peter Rinaldi is a board-certified orthopedic surgeon practicing in Sacramento, California. A Medicare provider since 2011, Dr. Rinaldi performed 13 Medicare-verified knee replacements in the latest annual CMS data, ranking #446 in California.

In California, Dr. Rinaldi performs below the state average in knee (13 vs 47).

Dr. Rinaldi's Medicare data shows a focused knee replacement practice with 13 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.

Sacramento is home to 28 orthopedic surgeons in the current Medicare dataset. Patients in the Sacramento area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Dr. Rinaldi's Medicare record spans 4 years from 2021 through 2024. Procedure volume has remained consistent during that period, ranging from 12 to 15 procedures per year, reflecting a steady joint replacement practice.

Dr. Rinaldi's 13 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.

Verified Medicare Cases

Knee Replacement
13 verified cases
#446 in California
Estimated total: 40 – 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. Rinaldi Compares

Procedure volume compared to the California state average.

Knee Below Avg
13 Avg: 47
Dr. Rinaldi California Average

Volume Trend Analysis

Dr. Rinaldi's procedure volume has been consistent across 4 years of Medicare data, ranging from 12 to 15 procedures per year. This stability suggests a well-established joint replacement practice.

Years of Data 4
2024 Volume 13
Peak Volume 15 (2023)
Trend Stable

Hospital Affiliations & Quality

H
University Of California Davis Medical Center
3/5
Sacramento, 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.

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. Rinaldi

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

Dr. Rinaldi has performed 13 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. Rinaldi ranks #556 out of 613 orthopedic surgeons in California.

What types of joint replacement does Dr. Rinaldi perform?

Dr. Rinaldi's reported Medicare volume is focused on knee replacement, with 13 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Are there other orthopedic surgeons near Dr. Rinaldi in Sacramento?

Yes. There are 28 orthopedic surgeons in Sacramento 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. Rinaldi 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. Rinaldi's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 13 procedures shown here.

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

Dr. Rinaldi's procedure volume has been relatively stable over 4 years of Medicare data, ranging from 12 to 15 procedures per year between 2021 and 2024. Consistent volume over multiple years reflects a steady joint replacement practice.

Which hospitals is Dr. Rinaldi affiliated with?

According to CMS facility affiliation data, Dr. Rinaldi is affiliated with University Of California Davis Medical Center.

How does Dr. Rinaldi compare to other orthopedic surgeons in Sacramento?

Among the 28 orthopedic surgeons in Sacramento, Dr. Rinaldi ranks #25 by total Medicare procedure volume. The highest-volume surgeon in Sacramento has 147 verified Medicare procedures.

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

University Of California Davis Medical Center (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 Sacramento, California

Dr. Rinaldi's 13 Medicare procedures are below the Sacramento average of 81. The table below compares verified procedure volumes for orthopedic surgeons practicing in Sacramento.

SurgeonProceduresSpecialties
Dr. Stephen Howell 147 Knee
Dr. John Meehan 104 Hip, Knee
Dr. Mauro Giordani 85 Hip, Knee
Dr. David Tai 80 Hip, Knee
Dr. Adam Taylor 77 Hip, Knee
Dr. Samuel Hu 64 Hip, 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. Peter Rinaldi, DO -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ca/dr-peter-rinaldi-sacramento.html

Link: https://orthoprocedures.com/surgeons/ca/dr-peter-rinaldi-sacramento.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.