Christopher Alexander, MD
NPI 1861246365 · Student in an Organized Health Care Education/Training Program · West Islip, NY
Enrolled with Medicare as Order and Referring Only - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Alexander, MD is a Student in an Organized Health Care Education/Training Program provider in West Islip, NY (NPI 1861246365).
Provider details
- NPI number
- 1861246365
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- 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
2 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
- 2024-04-12
- Last updated
- 2024-04-12
- Certified
- 2024-04-12
Frequently asked questions
- What is Christopher Alexander's NPI number?
- Christopher Alexander's National Provider Identifier (NPI) is 1861246365, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Alexander's specialty?
- Christopher Alexander 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 Christopher Alexander located?
- Christopher Alexander's practice location on file with NPPES is 1000 Montauk Hwy, West Islip, NY 11795-4927.
- What is Christopher Alexander's phone number?
- The practice phone number listed in the NPPES registry for Christopher Alexander is (631) 376-4163.
- Does Christopher Alexander accept Medicare?
- Christopher Alexander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Alexander's NPI active?
- Yes — Christopher Alexander's NPI (1861246365) is active in the NPPES registry as of the last update on 2024-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.