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MEREDITH KAY IRWIN M.D.
NPI 1003115403
Pediatrics in Louisville, KY

Active since March 24, 2011PECOS Enrolled
100 MALLARD CREEK RD STE 395, LOUISVILLE, KY 40207(502) 895-9421(502) 899-5762 Get Directions Write a Review

NPPES record last updated: January 19, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jan 19, 2021, Apr 17, 2018, Aug 16, 2017 and 1 more (4 updates tracked since 2017).

About Meredith Kay Irwin M.d. NPPES

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

MEREDITH KAY IRWIN M.D. (NPI 1003115403) is an individual pediatrics provider in Louisville, Kentucky, licensed in Kentucky (46855) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003115403
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMEREDITH KAY IRWINCredential: M.D.
Location Address100 MALLARD CREEK RD STE 395Louisville, KY 40207-5167
Mailing AddressPo Box 77651Chicago, IL 60677-6351 · (502) 272-5754 · Fax (502) 272-5339
Phone(502) 895-9421
Fax(502) 899-5762
Sole ProprietorNo
Enumeration DateMarch 24, 2011
Last NPPES UpdateJanuary 19, 20214 updates tracked since enumeration
NPPES CertifiedJanuary 19, 2021
✔ NPI 1003115403 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in KY · 46855✔ Licensed in IN · 01073533A
Definition
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.
100 MALLARD CREEK RD STE 395, Louisville, KY 40207
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Other Identifiers 2

Medicaid7100214600KY
Medicaid201220600AIN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter of Tennessee.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Meredith Kay Irwin M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show Meredith Irwin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Community Medical Associates, Inc.
3.7 mi
Sports Medicine
1951 BISHOP LN FL 4
Louisville, KY 40218
  • Reassigned Medicare billing, Kentucky enrollment
  • 1,896 clinicians in this Medicare group
NPI 1386904647 (502) 588-9490
Norton Children's Medical Group, LLC
5.7 mi
Clinical Genetics (M.D.)
4803 OLYMPIA PARK PLZ STE 1100
Louisville, KY 40241
  • Reassigned Medicare billing, Kentucky enrollment
  • Medicare enrollment name: Norton Childrens Medical Group LLC
  • 1,008 clinicians in this Medicare group
NPI 1013559921 (502) 272-5336

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 40207 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
$82.24 typical visit price
range $52.76 – $162.27
Typical copayment $20.56 (range $13.19 – $40.56)
Most-billed visit code 99203
Established Patient
$93.94 typical visit price
range $16.53 – $131.99
Typical copayment $23.48 (range $4.13 – $32.99)
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.

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.

GREGORY EDWARD SHAW
Pediatrics
100 MALLARD CREEK RD STE 395
LOUISVILLE, KY 40207
Jefferson County (502) 895-9421
DR. JENNIFER LOGAN SEGELEON M.D.
Pediatrics
100 MALLARD CREEK RD STE 395
LOUISVILLE, KY 40207
Jefferson County (502) 895-9421
DR. CARA GARCIA PRICE M.D.
Pediatrics
100 MALLARD CREEK RD STE 395
LOUISVILLE, KY 40207
Jefferson County (502) 895-9421
ERICA L BAILEN M.D.
Pediatrics
100 MALLARD CREEK RD STE 395
LOUISVILLE, KY 40207
Jefferson County (502) 895-9421
DR. KELLY N PRINGLE MD
Pediatrics
100 MALLARD CREEK RD STE 395
LOUISVILLE, KY 40207
Jefferson County (502) 895-9421

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 Meredith Irwin's NPI number?

The NPI number for Meredith Irwin is 1003115403. It was assigned to this individual provider in the NPPES registry on March 24, 2011.

Where is Meredith Irwin located?

Meredith Irwin practices at 100 Mallard Creek Rd Ste 395, Louisville, KY 40207. The listed phone number is (502) 895-9421.

What is Meredith Irwin's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Meredith Irwin enrolled in Medicare?

Yes. Meredith Irwin is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Meredith Irwin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Meredith Irwin reassigns Medicare benefits to 2 organizations: Community Medical Associates, Inc. (Louisville, KY) and Norton Children's Medical Group, LLC (Louisville, KY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Meredith Irwin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Meredith Irwin accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan and Ambetter of Tennessee list Meredith Irwin 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.

When was this NPI record last updated?

The NPPES record for Meredith Irwin was last updated on January 19, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.