John Michael Castillo, DO
NPI 1285262360 · Student in an Organized Health Care Education/Training Program · Boston, MA
John Michael Castillo, DO is a Student in an Organized Health Care Education/Training Program provider in Boston, MA (NPI 1285262360).
Provider details
- NPI number
- 1285262360
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
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
6 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-04-01
- Last updated
- 2022-02-10
- Certified
- 2022-02-03
Frequently asked questions
- What is John Michael Castillo's NPI number?
- John Michael Castillo's National Provider Identifier (NPI) is 1285262360, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Michael Castillo's specialty?
- John 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 John Michael Castillo located?
- John Michael Castillo's practice location on file with NPPES is 800 Washington St, Boston, MA 02111-1552.
- What is John Michael Castillo's phone number?
- The practice phone number listed in the NPPES registry for John Michael Castillo is (617) 636-5000.
- Is John Michael Castillo's NPI active?
- Yes — John Michael Castillo's NPI (1285262360) is active in the NPPES registry as of the last update on 2022-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.