#267 Hip
#296 Knee

Dr. Daniel Davis, MD

Orthopedic Surgery
41 procedures 1 hospital Simi Valley, 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
Hip 16 vs 36 avg (4,526 surgeons)
Knee 25 vs 45 avg (6,720 surgeons)

Dr. Daniel Davis is a board-certified orthopedic surgeon practicing in Simi Valley, California. A Medicare provider since 2006, Dr. Davis has performed 25 Medicare-verified knee replacements (#296 in California) and 16 hip replacements, for a combined total of 41 procedures.

In California, Dr. Davis performs below average in knee (25 vs 45 avg), below average in hip (16 vs 41 avg).

Dr. Davis's reported Medicare volume is split between knee replacements (25 cases) and hip replacements (16 cases).

Dr. Davis is the only orthopedic surgeon in Simi Valley represented in the current Medicare dataset, serving as the primary local option for patients considering joint replacement surgery in the area.

Dr. Davis's Medicare record spans 11 years from 2013 through 2023. Procedure volume has remained consistent during that period, ranging from 31 to 61 procedures per year, reflecting a steady joint replacement practice.

Dr. Davis's 25 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
25 verified cases
#296 in California
Hip Replacement
16 verified cases
#267 in California
Estimated total: 110 – 120 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. Davis Compares

Procedure volume compared to the California state average.

Hip Below Avg
16 Avg: 41
Knee Below Avg
25 Avg: 45
Dr. Davis California Average

Contact & Location

Phone: 805-527-1404
2525 Erringer Rd
Simi Valley, CA 93065
NPI: 1730150830
Credentials: MD
Active Medicare provider (NPI verified)
20 years of practice experience
Licensed MD
Licensed surgical specialist
Board-certified orthopedic surgeon
Sports medicine specialist
Contact information available
Find Practice on Google Maps

Volume Trend Analysis

Dr. Davis's procedure volume has been consistent across 11 years of Medicare data, ranging from 31 to 61 procedures per year. This stability suggests a well-established joint replacement practice.

Years of Data 11
2023 Volume 41
Peak Volume 61 (2020)
Trend Stable

Hospital Affiliations & Quality

H
Adventist Health Simi Valley
★★☆☆☆
Simi Valley, 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. Davis

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

Dr. Davis has performed 41 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. Davis ranks #308 out of 608 orthopedic surgeons in California.

What types of joint replacement does Dr. Davis perform?

Dr. Davis's Medicare data shows procedures in knee replacement (25 cases) and hip replacement (16 cases).

Where is Dr. Davis's practice located?

Dr. Davis practices in Simi Valley, California. The office is located at 2525 Erringer Rd, Simi Valley, CA 93065. Patients in the surrounding area can consult Dr. Davis for joint replacement evaluation.

What does the Medicare data for Dr. Davis 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. Davis's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 41 procedures shown here.

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

Dr. Davis's procedure volume has been relatively stable over 11 years of Medicare data, ranging from 31 to 61 procedures per year between 2013 and 2023. Consistent volume over multiple years reflects a steady joint replacement practice.

Does Dr. Davis perform more than one type of joint replacement?

Yes. Dr. Davis's Medicare data shows procedures in knee replacement (25 cases), hip replacement (16 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. Davis affiliated with?

According to CMS facility affiliation data, Dr. Davis is affiliated with Adventist Health Simi Valley.

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

Adventist Health Simi Valley (2 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.

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. Daniel Davis, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ca/dr-daniel-davis-simi-valley.html

Link: https://orthoprocedures.com/surgeons/ca/dr-daniel-davis-simi-valley.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.