Michael Castillo
NPI 1841940210 · Student in an Organized Health Care Education/Training Program · Riverside, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Castillo is a Student in an Organized Health Care Education/Training Program provider in Riverside, CA (NPI 1841940210).
Provider details
- NPI number
- 1841940210
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 53 | 24 |
| Lisinopril | 40 | 17 |
| Levothyroxine Sodium | 39 | 14 |
| Amlodipine Besylate | 33 | 15 |
| Losartan Potassium | 23 | — |
| Omeprazole | 22 | — |
| Lisinopril/Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-03-28
- Last updated
- 2022-03-28
- Certified
- 2022-03-28
Frequently asked questions
- What is Michael Castillo's NPI number?
- Michael Castillo's National Provider Identifier (NPI) is 1841940210, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Castillo's specialty?
- Michael Castillo is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Michael Castillo located?
- Michael Castillo's practice location on file with NPPES is 10800 Magnolia Ave, Module 242, Riverside, CA 92505.
- What is Michael Castillo's phone number?
- The practice phone number listed in the NPPES registry for Michael Castillo is (951) 353-4539.
- Does Michael Castillo accept Medicare?
- Michael Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Castillo's NPI active?
- Yes — Michael Castillo's NPI (1841940210) is active in the NPPES registry as of the last update on 2022-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.