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ERIN SIZEMORE APRN
NPI 1265786727
Nurse Practitioner in Louisville, KY

Active since November 06, 2012PECOS Enrolled
4123 DUTCHMANS LN STE 102, LOUISVILLE, KY 40207(502) 559-1670(502) 559-1679 Get Directions Write a Review

NPPES record last updated: September 7, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 7, 2021, Jun 4, 2021, Jan 22, 2021 and 2 more (5 updates tracked since 2017).

About Erin Sizemore Aprn NPPES

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

ERIN SIZEMORE APRN (NPI 1265786727) is an individual nurse practitioner in Louisville, Kentucky, licensed in Kentucky (3007754) and active in the NPI registry since November 2012. She is enrolled in Medicare PECOS and maintains a secondary practice location in Louisville.

NPPES Registry Identity

NPI1265786727
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameERIN SIZEMORECredential: APRN
Location Address4123 DUTCHMANS LN STE 102Louisville, KY 40207-4718
Mailing AddressPo Box 776879Chicago, IL 60677-6879 · (502) 588-9490 · Fax (502) 272-5116
Phone(502) 559-1670
Fax(502) 559-1679
Sole ProprietorNo
Enumeration DateNovember 6, 2012
Last NPPES UpdateSeptember 7, 20215 updates tracked since enumeration
NPPES CertifiedSeptember 7, 2021
✔ NPI 1265786727 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in KY · 3007754
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 3007754 (KY)
4123 DUTCHMANS LN STE 102, Louisville, KY 40207
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Other Names 1

Other Name (5)Erin Berkley

Secondary Practice Location 1

Location 1234 E Gray St Ste 662Louisville, KY 40202-1921 · Phone (502) 629-4220

Other Identifiers 1

Medicaid7100234140KY

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Erin Sizemore Aprn 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 Erin Sizemore 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.
3.6 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
5.9 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.

MARY JEANNE OSBORNE-ARNOLD APRN
Nurse Practitioner (Family)
4123 DUTCHMANS LN STE 102
LOUISVILLE, KY 40207
Jefferson County (502) 559-1670
MS. CATHERINE ANN MUTH ARNP
Nurse Practitioner (Family)
4123 DUTCHMANS LN STE 102
LOUISVILLE, KY 40207
Jefferson County (502) 559-1670
RAIN JOELLE WELLS APRN
Nurse Practitioner (Family)
4123 DUTCHMANS LN STE 102
LOUISVILLE, KY 40207
Jefferson County (502) 559-1670
KENDRA NICOLE EVANS APRN
Nurse Practitioner (Family)
4123 DUTCHMANS LN STE 102
LOUISVILLE, KY 40207
Jefferson County (502) 559-1670
ALLISON B REYNOLDS APRN
Nurse Practitioner (Pediatrics)
4123 DUTCHMANS LN STE 102
LOUISVILLE, KY 40207
Jefferson County (502) 559-1670

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 Erin Sizemore's NPI number?

The NPI number for Erin Sizemore is 1265786727. It was assigned to this individual provider in the NPPES registry on November 6, 2012. The provider is also known as Erin Berkley.

Where is Erin Sizemore located?

Erin Sizemore practices at 4123 Dutchmans Ln Ste 102, Louisville, KY 40207. The listed phone number is (502) 559-1670.

What is Erin Sizemore's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Erin Sizemore enrolled in Medicare?

Yes. Erin Sizemore is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Erin Sizemore's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Erin Sizemore 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 Erin Sizemore's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Erin Sizemore accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter of Tennessee and Anthem Blue Cross and Blue Shield and 1 other insurer list Erin Sizemore 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 Erin Sizemore was last updated on September 7, 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.