Mark A. Tannenbaum, M.D.
NPI 1033191861ActiveIndividual· Internal Medicine, Interventional Cardiology· West Des Moines, IA
Internal Medicine, Interventional Cardiology (M.D.) with Catholic Health Initiatives-Iowa Corp and 1 other group, practicing in West Des Moines, Iowa. Their prescriptions cost Medicare Part D more than their services did: $255,469 for 2,050 claims, against $96,868 paid for services in 2024. Shockwave Medical, Inc reported $19.45 in payments in 2025, mostly food and beverage. Lists Davis County Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1033191861 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 17, 2005 |
| Last updated in NPPES | Jun 14, 2020 |
| Certified by provider | Jun 14, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 27144 | IA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 27144 | 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 - Cardiovascular Disease (Cardiology) (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 566 |
|---|---|
| Services billed | 1,127 across 51 procedure codes |
| Paid by Medicare | $96,868 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,050 · 4,570 30-day fills |
|---|---|
| Patients | 398 |
| Total drug cost | $255,469 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical groups
- Catholic Health Initiatives-Iowa CorpAmes, IA · 113 clinicians
- Ottumwa Health Group LLCOttumwa, IA · 26 clinicians
Hospital affiliations
- Davis County HospitalBloomfield, IA
- Mercyone Centerville Medical CenterCenterville, IA
- Mercyone Des Moines Medical CenterDes Moines, IA
- Monroe County HospitalAlbia, IA
- Ottumwa Regional Health CenterOttumwa, IA
Industry payments (Open Payments)
- 2025$19.45 · 1 payment from 1 company
- 2024$149.85 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Shockwave Medical, Inc | $19.45 | 1 |
What the 2025 payments were for
- Food and Beverage$19.45 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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