Sumathy Nagraj Iyengar, M.D.,
NPI 1013173723ActiveIndividual· Hospitalist· Mason City, IA
Hospitalist (M.D.,) with Cogent Healthcare of Iowa PC, practicing in Mason City, Iowa. 416 Medicare patients in 2024, $116,698 paid; nearly all of their 370 Part D prescriptions were generic (94%). Lists Floyd County Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1013173723 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., |
| Sole proprietor | No |
| NPI issued | Aug 1, 2008 |
| Last updated in NPPES | Aug 3, 2020 |
| Certified by provider | Aug 3, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 39427 | IA |
| Internal Medicine | 207R00000X | 39427 | 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 - Hospitalist (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 416 |
|---|---|
| Services billed | 1,431 across 14 procedure codes |
| Paid by Medicare | $116,698 |
Part D prescriptions in 2024
| Prescriptions (claims) | 370 · 387 30-day fills |
|---|---|
| Patients | 174 |
| Total drug cost | $10,300 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical group
- Cogent Healthcare of Iowa PCMason City, IA · 61 clinicians
Hospital affiliations
- Floyd County Medical CenterCharles City, IA
- Franklin General HospitalHampton, IA
- Hancock County Health SystemBritt, IA
- Kossuth Regional Health CenterAlgona, IA
- Mercyone North Iowa Medical CenterMason City, 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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