Christopher James Rierson, DO
NPI 1912173741ActiveIndividual· Orthopaedic Surgery· Spencer, IA
Orthopaedic Surgery (DO) in Spencer, Iowa, trained at University of Iowa, Rj & L Carver College of Medicine (class of 1999). 914 Medicare patients in 2024, $226,227 paid; all of their 630 Part D prescriptions were generic.
Overview
| NPI | 1912173741 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 1, 2008 |
| Last updated in NPPES | Oct 1, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 4395 | IA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (IA); Practitioner - Orthopedic Surgery (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 914 |
|---|---|
| Services billed | 5,024 across 97 procedure codes |
| Paid by Medicare | $226,227 |
Part D prescriptions in 2024
| Prescriptions (claims) | 630 · 630 30-day fills |
|---|---|
| Patients | 247 |
| Total drug cost | $3,817 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | University of Iowa, Rj & L Carver College of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Orthopedic Surgery |
Medical groups
- Avera McKennanSioux Falls, SD · 959 clinicians
- Spencer Municipal HospitalSpencer, IA · 92 clinicians
- Lakes Regional HealthcareSpirit Lake, IA · 38 clinicians
Hospital affiliations
- Avera Holy Family HospitalEstherville, IA
- Kossuth Regional Health CenterAlgona, IA
- Lakes Regional HealthcareSpirit Lake, IA
- Osceola Community HospitalSibley, IA
- Spencer Municipal HospitalSpencer, IA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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