#24 Hip
#47 Knee

Dr. Gregory Klingenstein, M.D.

Orthopedic Surgery
121 procedures 3 hospitals Voorhees, NJ
Latest available Medicare data — updated April 2026
Rising Star
Hip replacement recovery kit Essentials every patient wishes they bought first
National Comparison by Procedure
Hip 63 vs 36 avg (4,526 surgeons)
Knee 58 vs 45 avg (6,720 surgeons)

Dr. Gregory Klingenstein is a board-certified orthopedic surgeon practicing in Voorhees, New Jersey. A Medicare provider since 2007, Dr. Klingenstein has performed 63 Medicare-verified hip replacements (#24 in New Jersey) and 58 knee replacements, for a combined total of 121 procedures.

In New Jersey, Dr. Klingenstein performs above average in hip (63 vs 42 avg), near average in knee (58 vs 53 avg).

Dr. Klingenstein's reported Medicare volume is split between hip replacements (63 cases) and knee replacements (58 cases).

Voorhees is home to 7 orthopedic surgeons in the current Medicare dataset. Patients in the Voorhees area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Klingenstein extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 41 to 121 in the most recent data, a 195% increase. This sustained growth reflects an expanding joint replacement practice.

Among 4,526 hip replacement surgeons tracked nationally, Dr. Klingenstein's 63 verified procedures is above the national average of 36.

Verified Medicare Cases

Hip Replacement
63 verified cases
#24 in New Jersey
Knee Replacement
58 verified cases
#47 in New Jersey
Estimated total: 330 – 370 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. Klingenstein Compares

Procedure volume compared to the New Jersey state average.

Hip High
63 Avg: 42
Knee Average
58 Avg: 53
Dr. Klingenstein New Jersey Average

Contact & Location

Phone: 609-267-9400
200 Bowman Dr
Voorhees, NJ 08043
NPI: 1952517963
Credentials: M.D.
Active Medicare provider (NPI verified)
19 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. Klingenstein's Medicare-recorded procedure volume has trended upward over 11 years, increasing 195% from 41 procedures in 2013 to 121 in the most recent data.

Years of Data 11
2023 Volume 121
Peak Volume 121 (2023)
Trend Growing

Hospital Affiliations & Quality

H
West Jersey Hospital
★★★☆☆
Voorhees, NJ
Similar to national avg
H
Virtua Mount Holly Hospital
★★★☆☆
Mount Holly, NJ
Low case volume
H
Virtua Our Lady Of Lourdes Hospital
★★☆☆☆
Camden, NJ

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.

Hip Replacement Recovery Overview

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

Week 1-2 Walking with assistive device (walker or cane). Gentle range-of-motion exercises begin. Most patients can manage basic self-care.
Week 3-6 Transition to walking independently. Resume driving short distances. Physical therapy focuses on strength and balance.
Week 7-12 Return to most daily activities and light exercise. Stair climbing improves. Many patients return to desk work.
Month 4-6 Full recovery for most patients. Resume recreational activities, golf, swimming, and low-impact exercise.

Individual recovery varies based on overall health, age, and adherence to physical therapy. View full hip replacement recovery guide and product recommendations

Frequently Asked Questions About Dr. Klingenstein

How does Dr. Klingenstein's procedure volume compare to other New Jersey surgeons?

Dr. Klingenstein has performed 121 Medicare-verified joint replacement procedures. This is significantly above the New Jersey average of 71 procedures per surgeon. Dr. Klingenstein ranks #32 out of 182 orthopedic surgeons in New Jersey.

What types of joint replacement does Dr. Klingenstein perform?

Dr. Klingenstein's Medicare data shows procedures in hip replacement (63 cases) and knee replacement (58 cases).

Are there other orthopedic surgeons near Dr. Klingenstein in Voorhees?

Yes. There are 7 orthopedic surgeons in Voorhees 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 New Jersey surgeons.

What does the Medicare data for Dr. Klingenstein 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. Klingenstein's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 121 procedures shown here.

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

Yes. Dr. Klingenstein's Medicare-recorded volume has increased from 41 procedures in 2013 to 121 in the most recent data, a 195% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 121 procedures in 2023.

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

Yes. Dr. Klingenstein's Medicare data shows procedures in hip replacement (63 cases), knee replacement (58 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. Klingenstein affiliated with?

According to CMS facility affiliation data, Dr. Klingenstein is affiliated with West Jersey Hospital, Virtua Mount Holly Hospital, Virtua Our Lady Of Lourdes Hospital.

How does Dr. Klingenstein compare to other orthopedic surgeons in Voorhees?

Among the 7 orthopedic surgeons in Voorhees, Dr. Klingenstein ranks #3 by total Medicare procedure volume. Dr. Klingenstein is among the highest-volume surgeons in Voorhees.

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

West Jersey Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Virtua Mount Holly Hospital (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Virtua Our Lady Of Lourdes Hospital (2 out of 5 CMS stars). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.

Other Orthopedic Surgeons in Voorhees, New Jersey

Dr. Klingenstein's 121 Medicare procedures are above the Voorhees average of 114. The table below compares verified procedure volumes for orthopedic surgeons practicing in Voorhees.

SurgeonProceduresSpecialties
Dr. Rajesh Jain 208 Hip, Knee
Dr. Scott Schoifet 191 Knee
Dr. Jeremy Reid 118 Hip, Knee
Dr. Manny Porat 113 Hip, Knee
Dr. Jack Shilling 38 Hip, Knee
Dr. Merrick Wetzler 11 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. Gregory Klingenstein, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/nj/dr-gregory-klingenstein-voorhees.html

Link: https://orthoprocedures.com/surgeons/nj/dr-gregory-klingenstein-voorhees.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.