Ashley Oneil, MD
NPI 1639800550 · Pediatrics Physician · Springfield, IL
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ashley Oneil, MD is a Pediatrics Physician provider in Springfield, IL (NPI 1639800550).
Provider details
- NPI number
- 1639800550
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036.175720 (IL)
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
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 400 N 9th St # 4aSpringfield, IL 62702-5310Phone: (217) 545-4779
Registry dates
- Enumerated
- 2022-06-21
- Last updated
- 2025-06-30
- Certified
- 2025-06-30
Frequently asked questions
- What is Ashley Oneil's NPI number?
- Ashley Oneil's National Provider Identifier (NPI) is 1639800550, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ashley Oneil's specialty?
- Ashley Oneil is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Ashley Oneil located?
- Ashley Oneil's practice location on file with NPPES is 400 N 9th St 4th Floor 4b, Springfield, IL 62702-5310.
- What is Ashley Oneil's phone number?
- The practice phone number listed in the NPPES registry for Ashley Oneil is (217) 545-8000.
- Does Ashley Oneil accept Medicare?
- Ashley Oneil is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ashley Oneil's NPI active?
- Yes — Ashley Oneil's NPI (1639800550) is active in the NPPES registry as of the last update on 2025-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.