James Oneal, MD
NPI 1538159520 · Internal Medicine Physician · Columbus, OH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Oneal, MD is a Internal Medicine Physician provider in Columbus, OH (NPI 1538159520).
Provider details
- NPI number
- 1538159520
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35082849 (OH)
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
- 2005-10-21
- Last updated
- 2022-01-05
Frequently asked questions
- What is James Oneal's NPI number?
- James Oneal's National Provider Identifier (NPI) is 1538159520, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Oneal's specialty?
- James Oneal is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Oneal located?
- James Oneal's practice location on file with NPPES is 3595 Olentangy River Rd, Columbus, OH 43214-3440.
- What is James Oneal's phone number?
- The practice phone number listed in the NPPES registry for James Oneal is (614) 566-5456.
- Does James Oneal accept Medicare?
- James Oneal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Oneal's NPI active?
- Yes — James Oneal's NPI (1538159520) is active in the NPPES registry as of the last update on 2022-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.