Claudia Regina Villatoro Santos, MD
NPI 1053872945ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Saint Louis, MO
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Washington University, practicing in Saint Louis, Missouri. Their prescriptions cost Medicare Part D more than their services did: $78,678 for 169 claims, against $3,647 paid for services in 2024. Amgen Inc. reported $139.95 in payments in 2025, mostly food and beverage. Lists Barnes Jewish Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1053872945 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 25, 2019 |
| Last updated in NPPES | Apr 17, 2025 |
| Certified by provider | Aug 23, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 2023044181 | MO |
| Internal Medicine | 207R00000X | 2023044181 | MO |
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 (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 32 |
|---|---|
| Services billed | 81 across 16 procedure codes |
| Paid by Medicare | $3,647 |
Part D prescriptions in 2024
| Prescriptions (claims) | 169 · 385 30-day fills |
|---|---|
| Patients | 42 |
| Total drug cost | $78,678 |
| Generic share | 36% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish West County HospitalCreve Coeur, MO
- Memorial HospitalBelleville, IL
Industry payments (Open Payments)
- 2025$139.95 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $139.95 | 1 |
What the 2025 payments were for
- Food and Beverage$139.95 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other endocrinologists in Saint Louis
- 1033406228
- 1033498266
- 1063616506
- 1073703583
- 1093731317
- 1104112994
- 1104146372
- 1124139845
- 1134432479
- 1134539018
- 1144518069
- 1154395614
All 94 endocrinologists in Saint Louis · All endocrinologists in Missouri