Matthew Santiago, DO
NPI 1427787555 · Student in an Organized Health Care Education/Training Program · Mesa, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Santiago, DO is a Student in an Organized Health Care Education/Training Program provider in Mesa, AZ (NPI 1427787555).
Provider details
- NPI number
- 1427787555
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 011601 (AZ)
Specialties & taxonomies
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
4 yrs in NPPES registry
- Profile completeness33% of score
100% 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.
$21 across 1 record (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)
- 3048 E Baseline Rd Ste 120Mesa, AZ 85204-7288Phone: (480) 505-3276
Registry dates
- Enumerated
- 2022-06-06
- Last updated
- 2025-09-16
- Certified
- 2025-09-16
Frequently asked questions
- What is Matthew Santiago's NPI number?
- Matthew Santiago's National Provider Identifier (NPI) is 1427787555, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Santiago's specialty?
- Matthew Santiago 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 Santiago located?
- Matthew Santiago's practice location on file with NPPES is 1301 S Crismon Rd, Mesa, AZ 85209-3767.
- What is Matthew Santiago's phone number?
- The practice phone number listed in the NPPES registry for Matthew Santiago is (480) 373-2376.
- Does Matthew Santiago accept Medicare?
- Matthew Santiago is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Santiago's NPI active?
- Yes — Matthew Santiago's NPI (1427787555) is active in the NPPES registry as of the last update on 2025-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.