Charnes Sy Chiu, MD
NPI 1548290869ActiveIndividual· Internal Medicine, Nephrology· Santa Fe, NM
Internal Medicine, Nephrology (MD) with Nephrophiles LLC, practicing in Santa Fe, New Mexico. 375 Medicare patients in 2024, $160,217 paid; nearly all of their 1,611 Part D prescriptions were generic (90%). Amgen Inc. was the largest of 13 companies reporting payments in 2025, $536.34 in all, mostly food and beverage. Lists Christus St Vincent Regional Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1548290869 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 3, 2006 |
| Last updated in NPPES | Mar 26, 2021 |
| Certified by provider | Mar 26, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD 2007-0093 | NM |
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 (NM) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 375 |
|---|---|
| Services billed | 1,634 across 16 procedure codes |
| Paid by Medicare | $160,217 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,611 · 3,633 30-day fills |
|---|---|
| Patients | 251 |
| Total drug cost | $192,907 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Nephrophiles LLCSanta Fe, NM · 5 clinicians
Hospital affiliations
- Christus St Vincent Regional Medical CenterSanta Fe, NM
- Holy Cross Hospital A Div of Taos Health SystemsTaos, NM
- Los Alamos Medical CenterLos Alamos, NM
- Presbyterian Espanola HospitalEspanola, NM
- Presbyterian Santa Fe Medical CenterSanta Fe, NM
Other facilities
- 322501 Santa Fe Dialysis (Fmc)Dialysis facility · Santa Fe, NM
- 322518 Las Vegas Nm Dialysis (Fmc)Dialysis facility · Las Vegas, NM
- 322557-Home Dialysis of Santa Fe,llcDialysis facility · Santa Fe, NM
Industry payments (Open Payments)
- 2025$536.34 · 24 payments from 13 companies
- 2024$366.15 · 17 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $130.62 | 5 |
| Bayer Healthcare Pharmaceuticals Inc. | $86.56 | 4 |
| Ardelyx, Inc. | $53.36 | 2 |
| Fresenius USA Marketing, Inc. | $36.87 | 2 |
| Astrazeneca Pharmaceuticals LP | $31.47 | 2 |
What the 2025 payments were for
- Food and Beverage$536.34 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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