Matthew Chang
NPI 1558940254 · Ophthalmology Physician · Loma Linda, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Chang is a Ophthalmology Physician provider in Loma Linda, CA (NPI 1558940254).
Provider details
- NPI number
- 1558940254
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- TLL-2025-002 (GU)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 388 Ypao RdTamuning, GU 96913-3701Phone: (671) 646-8881Fax: (671) 648-2548
Registry dates
- Enumerated
- 2021-04-08
- Last updated
- 2026-02-04
- Certified
- 2026-02-04
Frequently asked questions
- What is Matthew Chang's NPI number?
- Matthew Chang's National Provider Identifier (NPI) is 1558940254, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Chang's specialty?
- Matthew Chang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Chang located?
- Matthew Chang's practice location on file with NPPES is 11370 Anderson St # 1800, Loma Linda, CA 92354-3450.
- What is Matthew Chang's phone number?
- The practice phone number listed in the NPPES registry for Matthew Chang is (909) 558-2154.
- Does Matthew Chang accept Medicare?
- Matthew Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Chang's NPI active?
- Yes — Matthew Chang's NPI (1558940254) is active in the NPPES registry as of the last update on 2026-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.