#19 in Arizona
Shoulder

Dr. Theresa Pak, DO

Orthopedic Surgery
30 procedures 2 hospitals Sun City, AZ
Latest available Medicare data — updated April 2026
Shoulder replacement recovery kit Slings, cold therapy, and adaptive clothing for recovery
National Comparison by Procedure
Shoulder 30 vs 28 avg (2,092 surgeons)

Dr. Theresa Pak is a board-certified orthopedic surgeon practicing in Sun City, Arizona. A Medicare provider since 2017, Dr. Pak has performed 30 Medicare-verified shoulder replacements, ranking #19 in Arizona.

In Arizona, Dr. Pak performs near average in shoulder (30 vs 30 avg).

Dr. Pak's Medicare data shows a focused shoulder replacement practice with 30 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.

Sun City is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the Sun City area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Dr. Pak first appears in the Medicare dataset in 2022. With 2 years of recorded data, the longitudinal trend is still developing.

Among 2,092 shoulder replacement surgeons tracked nationally, Dr. Pak's 30 verified procedures is near the national average of 28.

Verified Medicare Cases

Shoulder Replacement
30 verified cases
#19 in Arizona
Estimated total: 80 – 90 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. Pak Compares

Procedure volume compared to the Arizona state average.

Shoulder Average
30 Avg: 30
Dr. Pak Arizona Average

Contact & Location

Phone: 866-974-2673
10484 W Thunderbird Blvd Ste 100
Sun City, AZ 85351
NPI: 1922536630
Credentials: DO
Active Medicare provider (NPI verified)
9 years of practice experience
Licensed DO
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps

Volume Trend Analysis

Dr. Pak has 2 years of Medicare procedure data beginning in 2022. Additional years of data will provide a clearer picture of volume trends.

Years of Data 2
2023 Volume 30
Peak Volume 34 (2022)
Trend Developing

Hospital Affiliations & Quality

H
The Core Institute Specialty Hospital
Phoenix, AZ
Similar to national avg
H
Banner Estrella Medical Center
★★★☆☆
Phoenix, AZ
Low case volume

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. Pak

How does Dr. Pak's procedure volume compare to other Arizona surgeons?

Dr. Pak has performed 30 Medicare-verified joint replacement procedures. The Arizona average is 68 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Pak ranks #135 out of 193 orthopedic surgeons in Arizona.

What types of joint replacement does Dr. Pak perform?

Dr. Pak's reported Medicare volume is focused on shoulder replacement, with 30 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

How experienced is Dr. Pak with shoulder replacement surgery?

Dr. Pak ranks #19 in Arizona for shoulder replacement with 30 Medicare-verified procedures. This high ranking among 193 state surgeons indicates significant experience with this specific procedure.

Are there other orthopedic surgeons near Dr. Pak in Sun City?

Yes. There are 3 orthopedic surgeons in Sun City 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 Arizona surgeons.

What does the Medicare data for Dr. Pak 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. Pak's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 30 procedures shown here.

Which hospitals is Dr. Pak affiliated with?

According to CMS facility affiliation data, Dr. Pak is affiliated with The Core Institute Specialty Hospital, Banner Estrella Medical Center.

How does Dr. Pak compare to other orthopedic surgeons in Sun City?

Among the 3 orthopedic surgeons in Sun City, Dr. Pak ranks #3 by total Medicare procedure volume. Dr. Pak is among the highest-volume surgeons in Sun City.

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

The Core Institute Specialty Hospital (hip/knee complication rate similar to national average); Banner Estrella 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 Sun City, Arizona

Dr. Pak's 30 Medicare procedures are below the Sun City average of 36. The table below compares verified procedure volumes for orthopedic surgeons practicing in Sun City.

SurgeonProceduresSpecialties
Dr. Jaharris Collier 44 Hip, Knee
Dr. John Thompson 35 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. Theresa Pak, DO -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/az/dr-theresa-pak-sun-city.html

Link: https://orthoprocedures.com/surgeons/az/dr-theresa-pak-sun-city.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.