Matthew Mcmaster, DO
NPI 1184204075 · Student in an Organized Health Care Education/Training Program · Danbury, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Mcmaster, DO is a Student in an Organized Health Care Education/Training Program provider in Danbury, CT (NPI 1184204075).
Provider details
- NPI number
- 1184204075
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- DO
- 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 tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$40 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 100 Woods RdValhalla, NY 10595-1530Phone: (914) 493-7000
Registry dates
- Enumerated
- 2021-04-13
- Last updated
- 2025-06-30
- Certified
- 2025-06-30
Frequently asked questions
- What is Matthew Mcmaster's NPI number?
- Matthew Mcmaster's National Provider Identifier (NPI) is 1184204075, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Mcmaster's specialty?
- Matthew Mcmaster 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 Mcmaster located?
- Matthew Mcmaster's practice location on file with NPPES is 24 Hospital Ave, Danbury, CT 06810-6099.
- What is Matthew Mcmaster's phone number?
- The practice phone number listed in the NPPES registry for Matthew Mcmaster is (203) 739-7000.
- Does Matthew Mcmaster accept Medicare?
- Matthew Mcmaster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Mcmaster's NPI active?
- Yes — Matthew Mcmaster's NPI (1184204075) is active in the NPPES registry as of the last update on 2025-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.