Quick answers
- Does Raymundo A. Castillejo accept Medicare assignment?
- Yes. Medicare's clinician data says Raymundo A. Castillejo 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 Raymundo A. Castillejo see?
- In 2024, CMS data shows 128 Original Medicare patients and 143 services for Raymundo A. Castillejo. This counts Original Medicare only and measures volume, not quality.
- What is Raymundo A. Castillejo's NPI number?
- 1619962057. 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 Raymundo A. Castillejo, 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 | 128 |
|---|---|
| Services billed to Medicare | 143 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Anesthesia for nerve block and injection procedure, prone position (01992)31 services
- Anesthesia for retinal surgery (00145)26 services
- Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)21 services
- Anesthesia for other procedure on lower leg, ankle, and foot bones (01480)11 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 cholesterol75%
- High blood pressure72%
- Arthritis67%
- Diabetes31%
- Anxiety30%
- Depression28%
Hospitals where Raymundo A. Castillejo works
Medicare's Facility Affiliation Data lists Raymundo A. Castillejo 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.
- MH St Elizabeth Youngstown HospitalYoungstown, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360064
- MH St Joseph Warren HospitalWarren, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360161
Practice locations
Addresses where Raymundo A. Castillejo is enrolled with Medicare (CMS data updated October 2, 2026).
- 1934 Niles Cortland Rd NEWarren, OH 44484 (330) 609‑7874
- 667 Eastland SeaveWarren, OH 44484 (330) 841‑4000
Group practices
Medicare enrollment lists Raymundo A. Castillejo as a member of this group (CMS data updated October 2, 2026).
- Bel-Park Anesthesia Associates, Inc.155 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Warren
Clinicians with the same Medicare primary specialty in Warren, OH — not a recommendation.
Other clinicians in Bel-Park Anesthesia Associates, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1972 (54 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1619962057 |
| 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