Dr. Robert Lock, Ii, D.O.

Orthopedic Surgery

Dr. Robert Lock, Ii is a board-certified orthopedic surgeon practicing in Bullhead City, Arizona. In 2023, Dr. Lock, Ii completed 95 knee replacements (#19 in Arizona), 39 hip replacements, and 22 shoulder replacements — totaling 156 Medicare-verified procedures.

With 156 total procedures, Dr. Lock, Ii ranks in the top 10% of orthopedic surgeons in Arizona, where the average surgeon performs 67 Medicare-verified procedures per year. That is more than 2x the statewide average.

Dr. Lock, Ii performs all three major joint replacement procedures — hip, knee, and shoulder — indicating a broad scope of orthopedic practice. The largest share is knee replacements (95 cases), followed by hip replacements (39) and shoulder replacements (22).

Bullhead City is home to 2 orthopedic surgeons in the current Medicare dataset. Patients in the Bullhead City area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Verified Medicare Cases (2023)

Knee Replacement
95 verified cases
#19 in Arizona
Hip Replacement
39 verified cases
#38 in Arizona
Shoulder Replacement
22 verified cases
#30 in Arizona
Estimated total: 420 – 470 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.

Hospital Affiliations

H
Western Arizona Regional Medical Center
Bullhead City, AZ
H
Valley View Medical Center
Fort Mohave, AZ
H
Kingman Regional Medical Center
Kingman, AZ
H
Havasu Regional Medical Center
Lake Havasu City, AZ

Verified Case Volume Trends (2013-2023)

Frequently Asked Questions About Dr. Lock, Ii

How does Dr. Lock, Ii's procedure volume compare to other Arizona surgeons?

In 2023, Dr. Lock, Ii performed 156 Medicare-verified joint replacement procedures. This is more than 2x the Arizona average of 67 procedures per surgeon. Dr. Lock, Ii ranks #20 out of 190 orthopedic surgeons in Arizona.

What types of joint replacement does Dr. Lock, Ii perform?

Dr. Lock, Ii performs all three major joint replacement procedures: knee replacement (95 cases), hip replacement (39 cases), shoulder replacement (22 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.

How experienced is Dr. Lock, Ii with knee replacement surgery?

Dr. Lock, Ii ranks #19 in Arizona for knee replacement with 95 Medicare-verified procedures in 2023. This high ranking among 190 state surgeons indicates significant experience with this specific procedure.

Are there other orthopedic surgeons near Dr. Lock, Ii in Bullhead City?

Yes. There are 2 orthopedic surgeons in Bullhead 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. Lock, Ii represent?

The procedure counts shown are based on Medicare Part B fee-for-service claims data for 2023, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Lock, Ii's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 156 procedures shown here.

Other Orthopedic Surgeons in Bullhead City, Arizona

Compare Dr. Lock, Ii's volume with other surgeons practicing in Bullhead City.

SurgeonProceduresSpecialties
Dr. Nathan Weaver 15 Knee

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Contact & Location

📞 Phone: 928-758-1175
2000 Highway 95
Bullhead City, AZ 86442
NPI: 1043287253
Credentials: D.O.
✅ Active Medicare provider (NPI verified)
📅 20 years of practice experience
🎓 Licensed D.O.
🏥 Licensed surgical specialist
🦴 Board-certified orthopedic surgeon
📞 Contact information available
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 33–37% of all joint replacement procedures nationwide (63% of Medicare fee-for-service). Always consult with healthcare providers to make informed decisions about your care.