MS. SHELLY FLAGG FNP-BC
NPI 1366806374
Nurse Practitioner - Family in Springfield, IL

Active since April 06, 2016PECOS EnrolledAccepts Medicare Assignment
94.61/100
CMS Quality Rating
400 N 9TH ST FL 2, SPRINGFIELD, IL 62702(217) 545-8000(217) 545-6041 Get Directions Write a Review

NPPES record last updated: September 17, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 17, 2025, Jan 3, 2022, Dec 28, 2021 (3 updates tracked since 2021).

About Ms. Shelly Flagg Fnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. SHELLY FLAGG FNP-BC (NPI 1366806374) is an individual family provider in Springfield, Illinois, licensed in Illinois (209014012) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS, is affiliated with Memorial Medical Center, and maintains a secondary practice location in Litchfield.

NPPES Registry Identity

NPI1366806374
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMS. SHELLY FLAGGCredential: FNP-BC
Location Address400 N 9TH ST FL 2Springfield, IL 62702-5310
Mailing AddressPo Box 19639Springfield, IL 62794-9639 · (217) 545-8000
Fax(217) 545-6041
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateApril 6, 2016
Last NPPES UpdateSeptember 17, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 17, 2025
NPI 1366806374 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in IL · 209014012
400 N 9TH ST FL 2, Springfield, IL 62702

Secondary Practice Location 1

Location 1725 Saint Francis WayLitchfield, IL 62056-1780 · Phone (217) 324-8798

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Ms. Shelly Flagg Fnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1850682410
PECOS Enrollment IDI20160629000807
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Memorial Medical Center

Acute Care Hospitals · Springfield, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140148
Location701 N First StSpringfield, IL 62702 · Sangamon County
Emergency services Birthing friendly

St Francis Hospital

Critical Access Hospitals · Litchfield, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number141350
Location1215 Franciscan DrLitchfield, IL 62056 · Montgomery County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62702 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.71 typical visit price
range $54.80 – $168.44
Typical copayment $21.42 (range $13.70 – $42.11)
Most-billed visit code 99203
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.61/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality85.17
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Wrist hand orthosis, wrist extension control cock-up, non molded, prefabricated, off-the-shelf L3908
DME-Orthotic Devices · category DF000N
1 supplier11 claims11 services$55.65 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Pediatrics (Pediatric Cardiology)
400 N 9TH ST FL 2
SPRINGFIELD, IL 62702
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
400 N 9TH ST FL 2
SPRINGFIELD, IL 62702
Pediatrics (Pediatric Cardiology)
400 N 9TH ST FL 2
SPRINGFIELD, IL 62702
Pediatrics (Pediatric Cardiology)
400 N 9TH ST FL 2
SPRINGFIELD, IL 62702
Pediatrics (Pediatric Cardiology)
400 N 9TH ST FL 2
SPRINGFIELD, IL 62702

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Shelly Flagg's NPI number?

The NPI number for Shelly Flagg is 1366806374. It was assigned to this individual provider in the NPPES registry on April 6, 2016.

Where is Shelly Flagg located?

Shelly Flagg practices at 400 N 9th St Fl 2, Springfield, IL 62702. The listed phone number is (217) 545-8000.

What is Shelly Flagg's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Shelly Flagg enrolled in Medicare?

Yes. Shelly Flagg is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Shelly Flagg accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Shelly Flagg as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Shelly Flagg affiliated with any hospitals?

According to CMS data, Shelly Flagg is affiliated with Memorial Medical Center and St Francis Hospital.

When was this NPI record last updated?

The NPPES record for Shelly Flagg was last updated on September 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.