James Mathewson, M.D.
NPI 1043381809 · Pediatric Cardiology Physician · Flagstaff, AZ
James Mathewson, M.D. is a Pediatric Cardiology Physician provider in Flagstaff, AZ (NPI 1043381809).
Provider details
- NPI number
- 1043381809
- Entity type
- Individual
- Primary specialty
- Pediatric Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G29338 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2006-11-13
- Last updated
- 2025-09-11
Frequently asked questions
- What is James Mathewson's NPI number?
- James Mathewson's National Provider Identifier (NPI) is 1043381809, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Mathewson's specialty?
- James Mathewson is listed in the NPPES registry with a primary specialty of Pediatric Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is James Mathewson located?
- James Mathewson's practice location on file with NPPES is 1330 N Rim Dr, Flagstaff, AZ 86001-3134.
- What is James Mathewson's phone number?
- The practice phone number listed in the NPPES registry for James Mathewson is (928) 779-7014.
- Is James Mathewson's NPI active?
- Yes — James Mathewson's NPI (1043381809) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.