Ngaruiya Kariuki, M.D.
NPI 1174964159ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Sheboygan, WI
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) with Healthtexas Provider Network, practicing in Sheboygan, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $1,069,326 for 1,453 claims, against $34,519 paid for services in 2024. Sanofi-Aventis U.S. LLC was the largest of 6 companies reporting payments in 2025, $3,246 in all, mostly consulting fees. Lists Baylor Scott & White Medical Center Plano as a hospital affiliation.
Overview
| NPI | 1174964159 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 8, 2013 |
| Last updated in NPPES | Dec 2, 2021 |
| Certified by provider | Dec 2, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 69329 | WI |
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 - Endocrinology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 168 |
|---|---|
| Services billed | 597 across 10 procedure codes |
| Paid by Medicare | $34,519 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,453 · 3,289 30-day fills |
|---|---|
| Patients | 230 |
| Total drug cost | $1,069,326 |
| Generic share | 26% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Healthtexas Provider NetworkWaxahachie, TX · 2,697 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$3,246 · 12 payments from 6 companies
- 2024$203.21 · 12 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sanofi-Aventis U.S. LLC | $3,106 | 4 |
| Novo Nordisk Inc | $48.48 | 3 |
| Medtronic, Inc. | $44.00 | 2 |
| Mannkind Corporation | $17.27 | 1 |
| Alvogen Inc | $16.44 | 1 |
What the 2025 payments were for
- Consulting Fee$2,750 · 1 payment
- Food and Beverage$410.08 · 10 payments
- Travel and Lodging$85.97 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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