Chalit Wanthakawikran, MD
NPI 1376700161ActiveIndividual· Internal Medicine, Nephrology· Laredo, TX
Internal Medicine, Nephrology (MD) with Laredo Nephrologists PLLC, practicing in Laredo, Texas. Their prescriptions cost Medicare Part D more than their services did: $746,858 for 2,295 claims, against $195,041 paid for services in 2024. Mallinckrodt Hospital Products Inc. was the largest of 2 companies reporting payments in 2025, $151.69 in all, mostly food and beverage. Lists Doctors Hospital of Laredo and 1 other hospital as hospital affiliations.
Overview
| NPI | 1376700161 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 20, 2008 |
| Last updated in NPPES | Jul 23, 2026 |
| Certified by provider | Jul 23, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | P1831 | 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 - Nephrology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 353 |
|---|---|
| Services billed | 1,451 across 19 procedure codes |
| Paid by Medicare | $195,041 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,295 · 4,458 30-day fills |
|---|---|
| Patients | 482 |
| Total drug cost | $746,858 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Laredo Nephrologists PLLCLaredo, TX · 8 clinicians
Hospital affiliations
- Doctors Hospital of LaredoLaredo, TX
- Laredo Medical CenterLaredo, TX
Other facilities
- Davita Laredo North Creek DialysisDialysis facility · Laredo, TX
- Davita Zapata Falcon Lake DialysisDialysis facility · Zapata, TX
- Hope Kidney ClinicDialysis facility · Laredo, TX
- Hope Kidney Clinic LakeviewDialysis facility · Laredo, TX
- Satellite Healthcare Southeast LaredoDialysis facility · Laredo, TX
Industry payments (Open Payments)
- 2025$151.69 · 4 payments from 2 companies
- 2024$221.71 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $129.42 | 3 |
| Calliditas Therapeutics US Inc. | $22.27 | 1 |
What the 2025 payments were for
- Food and Beverage$151.69 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nephrologists in Laredo
- 1194798967
- 1477084119
- 1518283688
- 1649401589
- 1679768089
- 1871876011
- 1881009215
- 1194723775
- 1902435290
- 1033381058
- 1144400342
- 1194172403