Matthew Alexander, MD
NPI 1225667090 · Student in an Organized Health Care Education/Training Program · Valhalla, NY
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Alexander, MD is a Student in an Organized Health Care Education/Training Program provider in Valhalla, NY (NPI 1225667090).
Provider details
- NPI number
- 1225667090
- 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
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
- 2020-04-03
- Last updated
- 2024-03-14
- Certified
- 2024-03-14
Frequently asked questions
- What is Matthew Alexander's NPI number?
- Matthew Alexander's National Provider Identifier (NPI) is 1225667090, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Alexander's specialty?
- Matthew 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 Matthew Alexander located?
- Matthew Alexander's practice location on file with NPPES is 100 Woods Rd, Valhalla, NY 10595-1530.
- What is Matthew Alexander's phone number?
- The practice phone number listed in the NPPES registry for Matthew Alexander is (914) 493-2205.
- Does Matthew Alexander accept Medicare?
- Matthew Alexander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Alexander's NPI active?
- Yes — Matthew Alexander's NPI (1225667090) is active in the NPPES registry as of the last update on 2024-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.