Billy Chang, MD, PHD
NPI 1710921739 · Pediatric Hematology & Oncology Physician · Portland, OR
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Billy Chang, MD, PHD is a Pediatric Hematology & Oncology Physician provider in Portland, OR (NPI 1710921739).
Provider details
- NPI number
- 1710921739
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- MD24667 (OR)
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
20 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
- 2006-06-16
- Last updated
- 2017-12-19
Frequently asked questions
- What is Billy Chang's NPI number?
- Billy Chang's National Provider Identifier (NPI) is 1710921739, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Billy Chang's specialty?
- Billy Chang is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Billy Chang located?
- Billy Chang's practice location on file with NPPES is 3181 Sw Sam Jackson Park Rd, Portland, OR 97239-3098.
- What is Billy Chang's phone number?
- The practice phone number listed in the NPPES registry for Billy Chang is (503) 494-1543.
- Does Billy Chang accept Medicare?
- Billy Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Billy Chang's NPI active?
- Yes — Billy Chang's NPI (1710921739) is active in the NPPES registry as of the last update on 2017-12-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.