Stuart David Christenson, MD
NPI 1336112499ActiveIndividual· Internal Medicine, Cardiovascular Disease· Ames, IA
Internal Medicine, Cardiovascular Disease (MD) in Ames, Iowa, trained at University of Iowa, Rj & L Carver College of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $1,676,649 for 9,627 claims, against $241,233 paid for services in 2024. Pfizer Inc. reported $18.05 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1336112499 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 9, 2006 |
| Last updated in NPPES | Sep 24, 2024 |
| Certified by provider | Sep 24, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 43881 | IA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,539 |
|---|---|
| Services billed | 8,103 across 84 procedure codes |
| Paid by Medicare | $241,233 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,627 · 21,361 30-day fills |
|---|---|
| Patients | 1,238 |
| Total drug cost | $1,676,649 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of Iowa, Rj & L Carver College of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical groups
- McFarland Clinic PCAmes, IA · 363 clinicians
- Iowa Specialty Hospital- ClarionClarion, IA · 98 clinicians
- Belmond Community HospitalBelmond, IA · 92 clinicians
- Mary Greeley Medical CenterAlpharetta, GA · 31 clinicians
Hospital affiliations
- Boone County HospitalBoone, IA
- Greene County Medical CenterJefferson, IA
- Iowa Specialty Hospital - ClarionClarion, IA
- Mary Greeley Medical CenterAmes, IA
- Story County HospitalNevada, IA
Industry payments (Open Payments)
- 2025$18.05 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $18.05 | 1 |
What the 2025 payments were for
- Food and Beverage$18.05 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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