Ronald Chun, M.D.
NPI 1730162264 · Internal Medicine Physician · Oakland, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Chun, M.D. is a Internal Medicine Physician provider in Oakland, CA (NPI 1730162264).
Provider details
- NPI number
- 1730162264
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA04945700 (NJ)
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
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
- 2005-11-29
- Last updated
- 2007-08-13
Frequently asked questions
- What is Ronald Chun's NPI number?
- Ronald Chun's National Provider Identifier (NPI) is 1730162264, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Chun's specialty?
- Ronald Chun is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Chun located?
- Ronald Chun's practice location on file with NPPES is 2221 Martin Luther King Jr Way, Oakland, CA 94612-1318.
- What is Ronald Chun's phone number?
- The practice phone number listed in the NPPES registry for Ronald Chun is (510) 267-7800.
- Does Ronald Chun accept Medicare?
- Ronald Chun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Chun's NPI active?
- Yes — Ronald Chun's NPI (1730162264) is active in the NPPES registry as of the last update on 2007-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.