Martin Wallace Carpenter, MD
NPI 1558359174ActiveIndividual· Psychiatry & Neurology, Psychiatry· Cedar Rapids, IA
Psychiatry & Neurology, Psychiatry (MD) in Cedar Rapids, Iowa, trained at University of Missouri, Columbia School of Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $72,330 for 341 claims, against $40,956 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) reported $16.56 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1558359174 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 7, 2005 |
| Last updated in NPPES | Aug 20, 2021 |
| Certified by provider | Aug 20, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 35422 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 134 |
|---|---|
| Services billed | 549 across 10 procedure codes |
| Paid by Medicare | $40,956 |
Part D prescriptions in 2024
| Prescriptions (claims) | 341 · 368 30-day fills |
|---|---|
| Patients | 94 |
| Total drug cost | $72,330 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of Missouri, Columbia School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Psychiatry |
Hospital affiliation
- Mercy Medical Center - Cedar RapidsCedar Rapids, IA
Industry payments (Open Payments)
- 2025$16.56 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $16.56 | 1 |
What the 2025 payments were for
- Food and Beverage$16.56 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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