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Dr. Ashley Oneil , MD

Pediatrics β€’ Springfield, IL

Active NPI 1639800550 Individual Practitioner Female Practitioner
Practice location in NPPES

400 N 9th St 4th Floor 4b
Springfield, IL 627025310

Call 2175458000 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

400 N 9th St 4th Floor 4b

Springfield, IL 627025310

Telephone 2175458000
Fax 2175452303
Organization at the Same NPPES Address or Phone
Siu Physicians & Surgeons, Inc Facility NPI 1164055976

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Springfield, IL. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2021

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019–2025.

Guide: How to read an Open Payments record

Years since graduation

5 years (graduated 2021)

CMS Doctors and Clinicians data list 2021 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2022

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

May accept Medicare assignment

CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Oneil has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Oneil as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Springfield and Illinois

108 active clinicians are listed under Pediatrics with a practice address in Springfield, IL (3,178 in Illinois).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Springfield

1.9% of these 108 clinicians have the CMS telehealth indicator.

4.6% of these 108 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2025-06-30
Pediatrics Primary Specialty

NUCC Taxonomy Code: 208000000X

License # reported to NPPES IL 036.175720

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Illinois Department of Financial and Professional Regulation.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PEDIATRIC MEDICINE

Medicare Enrollment ID

I20250718003035

Enrollment State Jurisdiction

IL

PECOS Control ID

9234510512

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Secondary Practice Locations

400 N 9th St # 4a

Springfield, IL 627025310

Phone: 2175454779

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

28 listed
Dr. Janet Albers , MD

Family Medicine

NPI 1023006913

Doctor of Medicine (M.D.)

Jay Benoit

Nurse Practitioner - Family

NPI 1003579335
Dr. Mukul Bhattarai , MD

Internal Medicine - Cardiovascular Disease

NPI 1013204262

Doctor of Medicine (M.D.)

Dr. Fadel Bofarrag , MD, MPH

Internal Medicine - Cardiovascular Disease

NPI 1003291279

Doctor of Medicine (M.D.), Master of Public Health

Dr. Basar Cenik , MD

Psychiatry & Neurology - Psychiatry

NPI 1013350446

Doctor of Medicine (M.D.)

Olivia Delay , FNP-C

Nurse Practitioner - Family

NPI 1033795992

Family Nurse Practitioner (Certified)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
πŸ“
Updated Practice Location June 30, 2025

Registered at 400 N 9TH ST 4TH FLOOR 4B, SPRINGFIELD, IL 627025310 (Tel: 2175458000)

πŸ“
Updated Business Mailing Address June 30, 2025

Registered at PO BOX 19639, SPRINGFIELD, IL 627949639 (Tel: 2175448000)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 30, 2025

Pediatrics (license number reported to NPPES: IL 036.175720)

βœ…
NPI Profile Active June 21, 2022

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) June 21, 2022

Registered at 400 N 9TH ST # 4A, SPRINGFIELD, IL 627025310 (Tel: 2175454779)

πŸ“
Business Mailing Address (Initial Record) June 21, 2022

Registered at PO BOX 19658, SPRINGFIELD, IL 627949658 (Tel: 2175448000)

πŸ‘€
Provider Name / Credentials (Initial Record) June 21, 2022

Recorded as ASHLEY ONEIL, MD

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 21, 2022

Pediatrics (license number reported to NPPES: IL 125080894)

🟒
Initial NPI Registration & Enumeration June 21, 2022

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1639800550
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 21, 2022
Last Update: June 30, 2025
Sole Proprietor: No

Other Pediatrics Specialists in Springfield

All Pediatrics Specialists in Springfield

Mailing Address

Po Box 19639

Springfield, IL 627949639

Phone: 2175448000

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.