#11 in Texas
Shoulder

Dr. James Gregory, MD

Orthopedic Surgery
59 procedures 5 hospitals Houston, TX
Latest available Medicare data — updated April 2026
Rising Star
Shoulder replacement recovery kit Slings, cold therapy, and adaptive clothing for recovery
National Comparison by Procedure
Shoulder 59 vs 28 avg (2,092 surgeons)

Dr. James Gregory is a board-certified orthopedic surgeon practicing in Houston, Texas. Dr. Gregory has performed 59 Medicare-verified shoulder replacements, ranking #11 in Texas.

In Texas, Dr. Gregory performs well above average in shoulder (59 vs 26 avg).

Dr. Gregory's Medicare data shows a focused shoulder replacement practice with 59 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.

Houston is home to 52 orthopedic surgeons in the current Medicare dataset. Patients in the Houston area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Gregory extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 14 to 59 in the most recent data, a 321% increase. This sustained growth reflects an expanding joint replacement practice.

Among 2,092 shoulder replacement surgeons tracked nationally, Dr. Gregory's 59 verified procedures is more than 2x the national average of 28, ranking #181 nationally.

Verified Medicare Cases

Shoulder Replacement
59 verified cases
#11 in Texas
Estimated total: 160 – 180 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. Gregory Compares

Procedure volume compared to the Texas state average.

Shoulder Very High
59 Avg: 26
Dr. Gregory Texas Average

Contact & Location

950 Corbindale Rd Ste 300
Houston, TX 77024
NPI: 1639335359
Credentials: MD
Active Medicare provider
Find Practice on Google Maps

Volume Trend Analysis

Dr. Gregory's Medicare-recorded procedure volume has trended upward over 11 years, increasing 321% from 14 procedures in 2013 to 59 in the most recent data.

Years of Data 11
2023 Volume 59
Peak Volume 59 (2023)
Trend Growing

Hospital Affiliations & Quality

H
Memorial Hermann Memorial City Medical Center
★★★☆☆
Houston, TX
Low case volume
H
Memorial Hermann Hospital System
★★★☆☆
Houston, TX
Similar to national avg
H
Memorial Hermann Texas Medical Center
★★★☆☆
Houston, TX
Low case volume
H
Memorial Hermann Sugar Land Hospital
★★★☆☆
Sugar Land, TX
Low case volume
H
Memorial Hermann Katy Hospital
★★★☆☆
Katy, TX

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.

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. Gregory

How does Dr. Gregory's procedure volume compare to other Texas surgeons?

Dr. Gregory has performed 59 Medicare-verified joint replacement procedures. This is in line with the Texas average of 56 procedures per surgeon. Dr. Gregory ranks #188 out of 573 orthopedic surgeons in Texas.

What types of joint replacement does Dr. Gregory perform?

Dr. Gregory's reported Medicare volume is focused on shoulder replacement, with 59 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

How experienced is Dr. Gregory with shoulder replacement surgery?

Dr. Gregory ranks #11 in Texas for shoulder replacement with 59 Medicare-verified procedures. This high ranking among 573 state surgeons indicates significant experience with this specific procedure.

Are there other orthopedic surgeons near Dr. Gregory in Houston?

Yes. There are 52 orthopedic surgeons in Houston 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 Texas surgeons.

What does the Medicare data for Dr. Gregory 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. Gregory's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 59 procedures shown here.

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

Yes. Dr. Gregory's Medicare-recorded volume has increased from 14 procedures in 2013 to 59 in the most recent data, a 321% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 59 procedures in 2023.

Which hospitals is Dr. Gregory affiliated with?

According to CMS facility affiliation data, Dr. Gregory is affiliated with Memorial Hermann Memorial City Medical Center, Memorial Hermann Hospital System, Memorial Hermann Texas Medical Center, Memorial Hermann Sugar Land Hospital, Memorial Hermann Katy Hospital.

How does Dr. Gregory compare to other orthopedic surgeons in Houston?

Among the 52 orthopedic surgeons in Houston, Dr. Gregory ranks #27 by total Medicare procedure volume. The highest-volume surgeon in Houston has 358 verified Medicare procedures.

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

Memorial Hermann Memorial City Medical Center (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Memorial Hermann Hospital System (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Memorial Hermann Texas Medical Center (3 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 Houston, Texas

Dr. Gregory's 59 Medicare procedures are below the Houston average of 177. The table below compares verified procedure volumes for orthopedic surgeons practicing in Houston.

SurgeonProceduresSpecialties
Dr. Stefan Kreuzer 358 Hip, Knee
Dr. Robin Goytia 198 Hip, Knee
Dr. Vasilios Mathews 182 Hip, Knee
Dr. Gregory Stocks 165 Hip, Knee
Dr. Kenneth Mathis 147 Hip, Knee
Dr. Ugonna Ihekweazu 131 Hip, 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. James Gregory, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/tx/dr-james-gregory-houston.html

Link: https://orthoprocedures.com/surgeons/tx/dr-james-gregory-houston.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.