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DR. STEPHEN KENNEDY JOHNSON M.D., PH.D.
NPI 1417155953
Pediatrics in Louisville, KY

Active since July 05, 2007PECOS Enrolled
100/100
CMS Quality Rating
10211 WESTPORT RD, LOUISVILLE, KY 40241(502) 339-0444(502) 339-1717 Get Directions Write a Review

NPPES record last updated: April 13, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 13, 2021, Jan 19, 2021, Mar 27, 2018 and 1 more (4 updates tracked since 2016).

About Dr. Stephen Kennedy Johnson M.d., Ph.d. NPPES

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

DR. STEPHEN KENNEDY JOHNSON M.D., PH.D. (NPI 1417155953) is an individual pediatrics provider in Louisville, Kentucky, licensed in Kentucky (46857) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1417155953
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. STEPHEN KENNEDY JOHNSONCredential: M.D., PH.D.
Location Address10211 WESTPORT RDLouisville, KY 40241-2147
Mailing AddressPo Box 776879Chicago, IL 60677-6879 · (502) 272-5395 · Fax (502) 272-5339
Phone(502) 339-0444
Fax(502) 339-1717
Sole ProprietorNo
Enumeration DateJuly 5, 2007
Last NPPES UpdateApril 13, 20214 updates tracked since enumeration
NPPES CertifiedApril 13, 2021
✔ NPI 1417155953 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in KY · 46857
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.
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 1376 (KY)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
10211 WESTPORT RD, Louisville, KY 40241
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Other Identifiers 4

Other000000885933KY · Anthem-ncma
Other50079132KY · Passport-ncma
Medicaid7100215230KY
Other165151KY · Siho-ncma

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Stephen Kennedy Johnson M.d., Ph.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 Stephen Johnson 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.
1.5 mi
Multi-Specialty
4803 OLYMPIA PARK PLZ STE 1100
Louisville, KY 40241
  • Reassigned Medicare billing, Kentucky enrollment
  • 1,896 clinicians in this Medicare group
NPI 1073089850 (502) 588-9490
Norton Children's Medical Group, LLC
1.5 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 40241 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.

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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 4

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

WILLIAM JOSEPH AKIN DO
Pediatrics
10211 WESTPORT RD
LOUISVILLE, KY 40241
Jefferson County (502) 339-0444
ANA L SCHOLTZ MD
Pediatrics
10211 WESTPORT RD
LOUISVILLE, KY 40241
Jefferson County (502) 339-0444
SHEILA M GUELDA M.D.
Pediatrics
10211 WESTPORT RD
LOUISVILLE, KY 40241
Jefferson County (502) 339-0444
TARA REED CHERNECKE APRN
Nurse Practitioner (Family)
10211 WESTPORT RD
LOUISVILLE, KY 40241
Jefferson County (502) 339-0444

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 Stephen Johnson's NPI number?

The NPI number for Stephen Johnson is 1417155953. It was assigned to this individual provider in the NPPES registry on July 5, 2007.

Where is Stephen Johnson located?

Stephen Johnson practices at 10211 Westport Rd, Louisville, KY 40241. The listed phone number is (502) 339-0444.

What is Stephen Johnson's specialty?

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

Is Stephen Johnson enrolled in Medicare?

Yes. Stephen Johnson is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Stephen Johnson's services?

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

When was this NPI record last updated?

The NPPES record for Stephen Johnson was last updated on April 13, 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.