Dr. Darin Larson, M.D.

Orthopedic Surgery

Dr. Darin Larson is a board-certified orthopedic surgeon practicing in Marshalltown, Iowa. In 2023, Dr. Larson performed 20 Medicare-verified knee replacements (#85 in Iowa) and 12 hip replacements, for a combined total of 32 procedures.

Dr. Larson recorded 32 Medicare fee-for-service procedures in 2023. Medicare data represents approximately one-third of all joint replacements nationwide, so these counts reflect only a portion of a surgeon's full practice. Iowa has 114 orthopedic surgeons in the current dataset.

Dr. Larson's reported Medicare volume is split between knee replacements (20 cases) and hip replacements (12 cases).

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

Verified Medicare Cases (2023)

Knee Replacement
20 verified cases
#85 in Iowa
Hip Replacement
12 verified cases
#73 in Iowa
Estimated total: 90 – 100 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
Unitypoint Health - Marshalltown
Marshalltown, IA

Verified Case Volume Trends (2013-2023)

Frequently Asked Questions About Dr. Larson

How does Dr. Larson's procedure volume compare to other Iowa surgeons?

In 2023, Dr. Larson performed 32 Medicare-verified joint replacement procedures. The Iowa average is 73 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Larson ranks #87 out of 114 orthopedic surgeons in Iowa.

What types of joint replacement does Dr. Larson perform?

Dr. Larson's Medicare data shows procedures in knee replacement (20 cases) and hip replacement (12 cases).

Are there other orthopedic surgeons near Dr. Larson in Marshalltown?

Yes. There are 2 orthopedic surgeons in Marshalltown 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 Iowa surgeons.

What does the Medicare data for Dr. Larson 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. Larson's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 32 procedures shown here.

Other Orthopedic Surgeons in Marshalltown, Iowa

Compare Dr. Larson's volume with other surgeons practicing in Marshalltown.

SurgeonProceduresSpecialties
Dr. John Hamilton 17 Knee

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Contact & Location

📞 Phone: 641-844-6259
51 Unitypoint Way
Marshalltown, IA 50158
NPI: 1568842391
Credentials: M.D.
✅ Active Medicare provider (NPI verified)
📅 11 years of practice experience
🎓 Licensed M.D.
🏥 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.