Individual provider Active NPI

Ashley Oneil, MD

  • Pediatrics Physician
  • Springfield, IL
National Provider Identifier
1639800550
Registry record updated Jun 30, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatrics PhysicianTaxonomy code 208000000X
License
036.175720 Issued in IL
Practice address
400 N 9TH St 4TH Floor 4B
Springfield, IL 62702-5310
Phone
(217) 545-8000
Fax
(217) 545-2303
NPI assigned
Jun 21, 2022
Last updated
Jun 30, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 30, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X 036.175720 IL Primary

Addresses

Primary practice location

400 N 9TH St 4TH Floor 4B
Springfield, IL 62702-5310

Mailing address

PO Box 19639
Springfield, IL 62794-9639
Phone (217) 544-8000

Other practice location 1

400 N 9th St # 4A
Springfield, IL 62702-5310
Phone (217) 545-4779

Other names 1

  • Ashley Anderson Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250718003035 IL Practitioner - Pediatric Medicine 9234510512 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036.175720ILMDPediatrics Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Siu Physicians & Surgeons, Inc CurrentSince Jul 10, 2025 Accepting new patients
Siu Physicians & Surgeons, Inc CurrentSince Jul 10, 2025 Accepting new patients

Locations

400 N 9th St
Springfield, IL 62702
Phone (217) 545-6498

400 N 9th St
#4A
Springfield, IL 62702
Phone (217) 545-4779

400 N 9th St
Fl 4
Springfield, IL 62702

751 N Rutledge St
Springfield, IL 62702
Phone (217) 545-0182

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1655769600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751241600000",
    "number": "1639800550",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 19639",
            "city": "SPRINGFIELD",
            "state": "IL",
            "postal_code": "627949639",
            "telephone_number": "217-544-8000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 N 9TH ST 4TH FLOOR 4B",
            "city": "SPRINGFIELD",
            "state": "IL",
            "postal_code": "627025310",
            "telephone_number": "217-545-8000",
            "fax_number": "217-545-2303"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "400 N 9th St # 4A",
            "address_purpose": "LOCATION",
            "city": "Springfield",
            "state": "IL",
            "postal_code": "627025310",
            "country_code": "US",
            "telephone_number": "217-545-4779",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ONEIL",
        "first_name": "ASHLEY",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-06-21",
        "last_updated": "2025-06-30",
        "certification_date": "2025-06-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "IL",
            "license": "036.175720",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ASHLEY",
            "last_name": "ANDERSON",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Springfield, IL

Sources for this page

Verify at the official NPI Registry.