Natraj Aiyappan Shanmugam, M.D.
NPI 1043449465ActiveIndividual· Internal Medicine· College Station, TX
Internal Medicine (M.D.) in College Station, Texas, licensed in TX, with an NPI issued in July 2009. Their prescriptions cost Medicare Part D more than their services did: $1,607,624 for 3,136 claims, against $48,950 paid for services in 2024. Novo Nordisk Inc was the largest of 12 companies reporting payments in 2025, $1,148 in all, mostly food and beverage. Lists Chi St Joseph Health Regional Hospital as a hospital affiliation.
Overview
| NPI | 1043449465 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 7, 2009 |
| Last updated in NPPES | Feb 24, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | P8538 | TX |
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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 132 |
|---|---|
| Services billed | 1,079 across 9 procedure codes |
| Paid by Medicare | $48,950 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,136 · 6,648 30-day fills |
|---|---|
| Patients | 288 |
| Total drug cost | $1,607,624 |
| Generic share | 39% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliation
Industry payments (Open Payments)
- 2025$1,148 · 51 payments from 12 companies
- 2024$3,531 · 84 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $471.29 | 13 |
| Insulet Corporation | $166.58 | 12 |
| Medtronic, Inc. | $159.29 | 12 |
| Dexcom, Inc. | $133.64 | 4 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $54.74 | 2 |
What the 2025 payments were for
- Food and Beverage$1,148 · 51 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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