Andrew Chang, DO
NPI 1518451970 · Family Medicine Physician · Portland, OR
Enrolled with Medicare as Practitioner - Hospice/Palliative Care · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Chang, DO is a Family Medicine Physician provider in Portland, OR (NPI 1518451970).
Provider details
- NPI number
- 1518451970
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- DO207327 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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.
$24 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
Registry dates
- Enumerated
- 2018-06-19
- Last updated
- 2025-03-03
- Certified
- 2025-03-03
Frequently asked questions
- What is Andrew Chang's NPI number?
- Andrew Chang's National Provider Identifier (NPI) is 1518451970, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Chang's specialty?
- Andrew Chang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew Chang located?
- Andrew Chang's practice location on file with NPPES is 415 N Killingsworth St Ste 103, Portland, OR 97217-2440.
- What is Andrew Chang's phone number?
- The practice phone number listed in the NPPES registry for Andrew Chang is (971) 299-7548.
- Does Andrew Chang accept Medicare?
- Andrew Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Chang's NPI active?
- Yes — Andrew Chang's NPI (1518451970) is active in the NPPES registry as of the last update on 2025-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.