REX P LAGERSTROM MD
NPI 1083679880
Internal Medicine in Louisville, KY

Active since April 18, 2006PECOS Enrolled
4003 KRESGE WAY STE 410, LOUISVILLE, KY 40207(502) 893-7462(502) 212-7550 Get Directions Write a Review

NPPES record last updated: December 7, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 7, 2020, Jan 11, 2018, Nov 28, 2017 (3 updates tracked since 2017).

About Rex P Lagerstrom Md NPPES

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

REX P LAGERSTROM MD (NPI 1083679880) is an individual internal medicine provider in Louisville, Kentucky, licensed in Kentucky (24848) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083679880
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameREX P LAGERSTROMCredential: MD
Location Address4003 KRESGE WAY STE 410Louisville, KY 40207-4652
Mailing Address2700 Stanley Gault Pkwy Ste 129Louisville, KY 40223-5176 · (502) 253-4900 · Fax (502) 489-5750
Fax(502) 212-7550
Sole ProprietorNo
Enumeration DateApril 18, 2006
Last NPPES UpdateDecember 7, 20203 updates tracked since enumeration
NPPES CertifiedDecember 7, 2020
✔ NPI 1083679880 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in KY · 24848
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
4003 KRESGE WAY STE 410, Louisville, KY 40207

Other Identifiers 1

Medicaid64248487KY

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rex P Lagerstrom Md 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 Rex Lagerstrom reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
4003 KRESGE WAY, SUITE 410
Louisville, KY 40207
  • Reassigned Medicare billing, Kentucky enrollment
  • 1,441 clinicians in this Medicare group
Sports Medicine
1951 BISHOP LN FL 4
Louisville, KY 40218
  • Reassigned Medicare billing, Kentucky enrollment
  • 1,896 clinicians in this Medicare group

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
$122.77 typical visit price
range $52.76 – $162.27
Typical copayment $30.69 (range $13.19 – $40.56)
Most-billed visit code 99204
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 8

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

Nurse Practitioner (Family)
4003 KRESGE WAY STE 410
LOUISVILLE, KY 40207
Nurse Practitioner
4003 KRESGE WAY STE 410
LOUISVILLE, KY 40207
Nurse Practitioner (Adult Health)
4003 KRESGE WAY STE 410
LOUISVILLE, KY 40207
Nurse Practitioner (Family)
4003 KRESGE WAY STE 410
LOUISVILLE, KY 40207
Family Medicine
4003 KRESGE WAY STE 410
LOUISVILLE, KY 40207
Family Medicine
4003 KRESGE WAY STE 410
LOUISVILLE, KY 40207
Family Medicine
4003 KRESGE WAY STE 410
LOUISVILLE, KY 40207
Nurse Practitioner
4003 KRESGE WAY STE 410
LOUISVILLE, KY 40207

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 Rex Lagerstrom's NPI number?

The NPI number for Rex Lagerstrom is 1083679880. It was assigned to this individual provider in the NPPES registry on April 18, 2006.

Where is Rex Lagerstrom located?

Rex Lagerstrom practices at 4003 Kresge Way Ste 410, Louisville, KY 40207. The listed phone number is (502) 893-7462.

What is Rex Lagerstrom's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Rex Lagerstrom enrolled in Medicare?

Yes. Rex Lagerstrom is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Rex Lagerstrom's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rex Lagerstrom reassigns Medicare benefits to 2 organizations: Baptist Health Medical Group Inc (Louisville, KY) and Community Medical Associates, Inc. (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 Rex Lagerstrom's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Rex Lagerstrom accept?

Health plans from CareSource list Rex Lagerstrom 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 Rex Lagerstrom was last updated on December 7, 2020. 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.