NPPES file of Aug 9, 2026

Stephen Kennedy Johnson, M.D., PH.D.

Pediatrics Physician · Louisville, KY

Stephen Kennedy Johnson, M.D., PH.D. is a pediatrics physician with a practice address in Louisville, Kentucky, and NPI 1417155953, issued on Jul 5, 2007. Check the license (Kentucky 46857, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1417155953
Name
Stephen Kennedy Johnson
Credential
M.D., PH.D.
Primary taxonomy
Pediatrics Physician 208000000X
License numbers
46857 KY
1376 KY
Self-reported in NPPES; status is on the state search
Practice location
10211 Westport RD, Louisville, KY 40241
Phone
(502) 339-0444
Enumerated
Jul 5, 2007
Record last updated
Apr 13, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(502) 339-1717
Medicaid ID
7100215230 KY
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 10211 Westport RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. William Akin, DOPediatrics Physician1083290613
  2. Tara Chernecke, APRNFamily Nurse Practitioner1841661709
  3. Sheila Guelda, M.D.Pediatrics Physician1639134315
  4. Ana Scholtz, MDPediatrics Physician1245216704

Verify Stephen Kennedy Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKentucky Board of Medical Licensure
    Search for license 46857
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Kentucky license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $64.73

4 payments; by number, the most common kind was food and beverage; the largest payer was Tris Pharma Inc. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen Johnson$64.73
  2. Specialty average$842.05

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Stephen Kennedy Johnson among 874 pediatrics physician records in Kentucky

Stephen Kennedy Johnson, M.D., PH.D. is one of 874 pediatrics physician records with a practice address in Kentucky. 52% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.

  • NPI issued2007 · 44% of these records are older, 44% newer
  • In a Medicare fileYes · 52% of these records are
  • In the CMS Doctors and Clinicians fileNo · 15% of these records are
  • Record last updated2021 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

293 pediatrics physician records list a practice address in Louisville

They are 293 of the 21,891 NPPES records with a practice address in Louisville, and 874 pediatrics physician records in Kentucky.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Melissa Agan, MDLouisville, KY 402411619024411
  2. Teresa Crase, MDLouisville, KY 402411003903147
  3. Julie Doering, MDLouisville, KY 402411659613727
  4. Amy Garlove, MDLouisville, KY 402411548304488
  5. Sheila Guelda, M.D.Louisville, KY 402411639134315
  6. Elizabeth Maeser, M.D.Louisville, KY 402411831283076
  7. Justin Morgan, M.D.Louisville, KY 402411780703769
  8. Kathryn Owens, M.D.Louisville, KY 402411285772517

Common questions

What is Stephen Kennedy Johnson, M.D., PH.D.'s NPI number?

Stephen Kennedy Johnson, M.D., PH.D.'s National Provider Identifier (NPI) is 1417155953, issued on Jul 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Kennedy Johnson, M.D., PH.D. located?

The NPPES record lists a practice address at 10211 Westport RD, Louisville, KY, 40241. Phone: (502) 339-0444. Providers update this record themselves, so call before visiting.

How can I verify Stephen Kennedy Johnson, M.D., PH.D.'s license?

NPPES lists Kentucky license number 46857, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Stephen Kennedy Johnson, M.D., PH.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.