Individual provider Active NPI

Shelly Flagg, FNP-BC

  • Family Nurse Practitioner
  • Springfield, IL
National Provider Identifier
1366806374
Registry record updated Sep 17, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
209014012 Issued in IL
Practice address
400 N 9TH St FL 2
Springfield, IL 62702-5310
Phone
(217) 545-8000
Fax
(217) 545-6041
NPI assigned
Apr 6, 2016
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 17, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X 209014012 IL Primary

Addresses

Primary practice location

400 N 9TH St FL 2
Springfield, IL 62702-5310

Mailing address

PO Box 19639
Springfield, IL 62794-9639
Phone (217) 545-8000

Other practice location 1

725 Saint Francis Way
Litchfield, IL 62056-1780
Phone (217) 324-8798

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address sflagg157680@ewd.direct.hshs.org Direct

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: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20160629000807 IL Practitioner - Nurse Practitioner 1850682410 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Siu Physicians and Surgeons IncGroup PAC ID 2365352820, 316 clinicians

Practice addresses (Care Compare)

1215 Franciscan Dr
Litchfield, IL 62056-1778
Phone (217) 324-2191

400 N 9TH St
Springfield, IL 62702-5310
Phone (217) 545-8000

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
209014012ILMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Siu Physicians & Surgeons, Inc CurrentSince Sep 3, 2025 Accepting new patients
Board of Trustees of Southern Illinois University Current Accepting new patients
Siu Physicians & Surgeons, Inc CurrentSince Sep 3, 2025 Accepting new patients
St Francis Hospital of the Hospital Sisters of the Third Order of St F CurrentSince Jul 14, 2022 Accepting new patients
Siu Physicians & Surgeons, Inc Past Accepting new patients

Locations

1215 Franciscan Dr
Litchfield, IL 62056
Phone (217) 324-2191

725 Saint Francis Way
Litchfield, IL 62056
Phone (217) 324-4233

301 N 8th St
Springfield, IL 62701
Phone (217) 545-0003

400 N 9th St
Fl 2
Springfield, IL 62702

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

3051 Hollis Dr
Springfield, IL 62704
Phone (217) 523-5406

Interoperability endpoints

  • Direct secure messaging: sflagg157680@ewd.direct.hshs.org
  • Direct secure messaging: shellyflagg@siusm.allscriptsdirect.net

Organizations & group practices 5

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

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1459900800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758067200000",
    "number": "1366806374",
    "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": "217-545-8000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 N 9TH ST FL 2",
            "city": "SPRINGFIELD",
            "state": "IL",
            "postal_code": "627025310",
            "telephone_number": "217-545-8000",
            "fax_number": "217-545-6041"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "725 Saint Francis Way",
            "address_purpose": "LOCATION",
            "city": "Litchfield",
            "state": "IL",
            "postal_code": "620561780",
            "country_code": "US",
            "telephone_number": "217-324-8798",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FLAGG",
        "first_name": "SHELLY",
        "name_prefix": "Ms.",
        "credential": "FNP-BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-04-06",
        "last_updated": "2025-09-17",
        "certification_date": "2025-09-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "IL",
            "license": "209014012",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "sflagg157680@ewd.direct.hshs.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CDA/CCD/TXT",
            "address_1": "725 Saint Francis Way",
            "city": "Litchfield",
            "state": "IL",
            "country_code": "US",
            "postal_code": "620561780",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Springfield, IL

Sources for this page

Verify at the official NPI Registry.