Quick answers
- Does Fernando Casado Castillo accept Medicare assignment?
- Yes. Medicare's clinician data says Fernando Casado Castillo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Fernando Casado Castillo see?
- In 2024, CMS data shows 267 Original Medicare patients and 771 services for Fernando Casado Castillo. This counts Original Medicare only and measures volume, not quality.
- What is Fernando Casado Castillo's NPI number?
- 1528411774. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Fernando Casado Castillo, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 267 |
|---|---|
| Services billed to Medicare | 771 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)431 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)160 services
- Hospital discharge day management, more than 30 minutes (99239)125 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)17 services
- Advance care planning, first 30 minutes (99497)13 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Chronic kidney disease49%
- Heart failure48%
- Atrial fibrillation48%
Hospitals where Fernando Casado Castillo works
Medicare's Facility Affiliation Data lists Fernando Casado Castillo at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- CHRISTUS St Vincent Regional Medical CenterSanta Fe, NM · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 320002
- Tacoma General Allenmore HospitalTacoma, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500129
Practice locations
Addresses where Fernando Casado Castillo is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 16251 Sylvester Rd SWBurien, WA 98166 (206) 244‑9970
- 2 Calle FinalPlacitas, NM 87043 (972) 449‑0540
- 315 Martin Luther King Jr WayTacoma, WA 98405 (253) 403‑1000
- 407 14th Ave SEPuyallup, WA 98372 (253) 697‑4000
- 455 Saint Michaels DrSanta Fe, NM 87505 (972) 449‑0540
Group practices
Medicare enrollment lists Fernando Casado Castillo as a member of these groups (CMS data updated October 2, 2026).
- South Sound Inpatient Physicians PLLC422 clinicians in the group
- Access Telecare PLLC413 clinicians in the group
- St Vincent Hospital310 clinicians in the group
Specialties
- Infectious Diseaseprimary
- Internal Medicinealso
Other infectious disease doctors in Burien
Clinicians with the same Medicare primary specialty in Burien, WA — not a recommendation.
Other clinicians in South Sound Inpatient Physicians PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2014 (12 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1528411774 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians