James Chuang, MD
NPI 1720195977 · Radiation Oncology Physician · Arcadia, CA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Chuang, MD is a Radiation Oncology Physician provider in Arcadia, CA (NPI 1720195977).
Provider details
- NPI number
- 1720195977
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A049627 (CA)
Specialties & taxonomies
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
- 2006-08-24
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Chuang's NPI number?
- James Chuang's National Provider Identifier (NPI) is 1720195977, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Chuang's specialty?
- James Chuang is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is James Chuang located?
- James Chuang's practice location on file with NPPES is 301 W Huntington Dr, Arcadia, CA 91007.
- What is James Chuang's phone number?
- The practice phone number listed in the NPPES registry for James Chuang is (626) 574-3657.
- Does James Chuang accept Medicare?
- James Chuang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Chuang's NPI active?
- Yes — James Chuang's NPI (1720195977) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.