#33 Knee
#38 Hip

Dr. Joseph Assini, MD

Orthopedic Surgery
90 procedures 3 hospitals Englewood, CO
Latest available Medicare data — updated April 2026
Rising Star
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety — under $50 essentials
National Comparison by Procedure
Hip 34 vs 36 avg (4,526 surgeons)
Knee 56 vs 45 avg (6,720 surgeons)

Dr. Joseph Assini is a board-certified orthopedic surgeon practicing in Englewood, Colorado. A Medicare provider since 2013, Dr. Assini has performed 56 Medicare-verified knee replacements (#33 in Colorado) and 34 hip replacements, for a combined total of 90 procedures.

In Colorado, Dr. Assini performs near average in knee (56 vs 49 avg), near average in hip (34 vs 38 avg).

Dr. Assini's reported Medicare volume is split between knee replacements (56 cases) and hip replacements (34 cases).

Englewood is home to 4 orthopedic surgeons in the current Medicare dataset. Patients in the Englewood area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Assini extend back to 2015, covering 9 years of data. Over that period, recorded procedure volume increased from 34 to 90 in the most recent data, a 165% increase. This sustained growth reflects an expanding joint replacement practice.

Among 6,720 knee replacement surgeons tracked nationally, Dr. Assini's 56 verified procedures is above the national average of 45.

Verified Medicare Cases

Knee Replacement
56 verified cases
#33 in Colorado
Hip Replacement
34 verified cases
#38 in Colorado
Estimated total: 240 – 270 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. Assini Compares

Procedure volume compared to the Colorado state average.

Hip Average
34 Avg: 38
Knee Average
56 Avg: 49
Dr. Assini Colorado Average

Contact & Location

Phone: 303-789-2663
799 E Hampden Ave
Englewood, CO 80113
NPI: 1841538832
Credentials: MD
Active Medicare provider (NPI verified)
13 years of practice experience
Licensed MD
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps

Volume Trend Analysis

Dr. Assini's Medicare-recorded procedure volume has trended upward over 9 years, increasing 165% from 34 procedures in 2015 to 90 in the most recent data.

Years of Data 9
2023 Volume 90
Peak Volume 97 (2021)
Trend Growing

Hospital Affiliations & Quality

H
Adventhealth Porter
★★★★☆
Denver, CO
Similar to national avg
H
Adventhealth Littleton
★★★★☆
Littleton, CO
Similar to national avg
H
Adventhealth Parker
★★★★☆
Parker, CO
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. Assini

How does Dr. Assini's procedure volume compare to other Colorado surgeons?

Dr. Assini has performed 90 Medicare-verified joint replacement procedures. This is in line with the Colorado average of 63 procedures per surgeon. Dr. Assini ranks #37 out of 165 orthopedic surgeons in Colorado.

What types of joint replacement does Dr. Assini perform?

Dr. Assini's Medicare data shows procedures in knee replacement (56 cases) and hip replacement (34 cases).

Are there other orthopedic surgeons near Dr. Assini in Englewood?

Yes. There are 4 orthopedic surgeons in Englewood 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 Colorado surgeons.

What does the Medicare data for Dr. Assini 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. Assini's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 90 procedures shown here.

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

Yes. Dr. Assini's Medicare-recorded volume has increased from 34 procedures in 2015 to 90 in the most recent data, a 165% increase over 9 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 97 procedures in 2021.

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

Yes. Dr. Assini's Medicare data shows procedures in knee replacement (56 cases), hip replacement (34 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. Assini affiliated with?

According to CMS facility affiliation data, Dr. Assini is affiliated with Adventhealth Porter, Adventhealth Littleton, Adventhealth Parker.

How does Dr. Assini compare to other orthopedic surgeons in Englewood?

Among the 4 orthopedic surgeons in Englewood, Dr. Assini ranks #1 by total Medicare procedure volume. Dr. Assini has the highest verified Medicare volume in the city.

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

Adventhealth Porter (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Adventhealth Littleton (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Adventhealth Parker (4 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 Englewood, Colorado

Dr. Assini's 90 Medicare procedures are above the Englewood average of 47. The table below compares verified procedure volumes for orthopedic surgeons practicing in Englewood.

SurgeonProceduresSpecialties
Dr. John Woodward 54 Hip, Knee
Dr. John Reister 25 Shoulder
Dr. Judith Kopinski 18 Knee

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. Joseph Assini, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/co/dr-joseph-assini-englewood.html

Link: https://orthoprocedures.com/surgeons/co/dr-joseph-assini-englewood.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.