Fernando Ernesto Casado Castillo, M.D.
NPI 1528411774ActiveIndividual· Internal Medicine, Infectious Disease· Renton, WA
Internal Medicine, Infectious Disease (M.D.) with South Sound Inpatient Physicians PLLC and 2 other groups, practicing in Renton, Washington. In 2024 Medicare paid $56,803 for 267 patients, and Part D covered 360 of their prescriptions, 89% of them generic. Zoll Services LLC (A/K/A Zoll Lifecor Corp) was the largest of 2 companies reporting payments in 2025, $42.34 in all, mostly food and beverage. Lists Christus St Vincent Regional Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1528411774 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 22, 2016 |
| Last updated in NPPES | Mar 28, 2024 |
| Certified by provider | Mar 28, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | MD61417522 | WA |
| Internal Medicine | 207R00000X | MD61417522 | WA |
| Internal Medicine, Infectious Disease | 207RI0200X | MD-45957 | IA |
| Internal Medicine, Infectious Disease | 207RI0200X | 74676 | 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 - Infectious Disease (AZ); Practitioner - Infectious Disease (ID); Practitioner - Infectious Disease (MT); Practitioner - Internal Medicine (NM); Practitioner - Infectious Disease (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 267 |
|---|---|
| Services billed | 771 across 9 procedure codes |
| Paid by Medicare | $56,803 |
Part D prescriptions in 2024
| Prescriptions (claims) | 360 · 370 30-day fills |
|---|---|
| Patients | 136 |
| Total drug cost | $15,266 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- South Sound Inpatient Physicians PLLCArlington, WA · 422 clinicians
- Access Telecare PLLCMountain Brk, AL · 413 clinicians
- St Vincent HospitalSanta Fe, NM · 310 clinicians
Hospital affiliations
- Christus St Vincent Regional Medical CenterSanta Fe, NM
- Tacoma General Allenmore HospitalTacoma, WA
Industry payments (Open Payments)
- 2025$42.34 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $24.27 | 1 |
| W. L. Gore & Associates, Inc. | $18.07 | 1 |
What the 2025 payments were for
- Food and Beverage$42.34 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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