NPPES file of Aug 9, 2026

Kay F. Johnson-Keys, MD

Obstetrics & Gynecology Physician · Janesville, WI

Kay F. Johnson-Keys, MD is an obstetrics & gynecology physician with a practice address in Janesville, Wisconsin, and NPI 1043247190, issued on Jun 26, 2006. Check the license (Wisconsin 63731-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1043247190
Name
Kay F. Johnson-Keys
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
63731-20 WI
01059804A IN
Self-reported in NPPES; status is on the state search
Practice location
3400 E Racine St, Janesville, WI 53546
Phone
(608) 373-8000
Enumerated
Jun 26, 2006
Record last updated
Apr 12, 2023
Fax
(608) 371-8928
Medicaid IDs
200501040 IN
2920361 OH
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 3400 E Racine St

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

  1. David Bayley, M.D.Anesthesiology Physician1316918923
  2. Lawrence Beck, CRNACertified Registered Nurse Anesthetist1003872052
  3. Robert Bisenius, CRNACertified Registered Nurse Anesthetist1689923617
  4. Jennifer Canik, OTOccupational Therapist1033517677
  5. Chijen Chen, M.D.Hospitalist Physician1912589946
  6. William Clanfield, MDHospitalist Physician1326085648

Verify Kay F. Johnson-Keys in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 63731-20
    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 Wisconsin 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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Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs

44 Medicare Part D claims for 20 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.

  1. Kay Johnson-Keys44
  2. Specialty average165

Most prescribed

Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.

  1. Arexvy11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Kay F. Johnson-Keys among 796 obstetrics & gynecology physician records in Wisconsin

Kay F. Johnson-Keys, MD is one of 796 obstetrics & gynecology physician records with a practice address in Wisconsin. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 47% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2023 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Wisconsin

There are 796 obstetrics & gynecology physician records in Wisconsin.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Tyler Boschuetz, MDJanesville, WI 535461063809416
  2. Noreen King, MDJanesville, WI 535461184664773
  3. Kristin Miller, DOJanesville, WI 535461124004684
  4. Dale Rozeboom, MDJanesville, WI 535461346281656
  5. Mark Torres, D.O.Janesville, WI 535461124026208
  6. Edward Miller, MDJanesville, WI 535451619045671
  7. Jill Cousino, D.O.Janesville, WI 535481154587277
  8. Katheryn Kaldor, DOJanesville, WI 535481700922754

Common questions

What is Kay F. Johnson-Keys, MD's NPI number?

Kay F. Johnson-Keys, MD's National Provider Identifier (NPI) is 1043247190, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kay F. Johnson-Keys, MD located?

The NPPES record lists a practice address at 3400 E Racine St, Janesville, WI, 53546. Phone: (608) 373-8000. Providers update this record themselves, so call before visiting.

How can I verify Kay F. Johnson-Keys, MD's license?

NPPES lists Wisconsin license number 63731-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Kay F. Johnson-Keys, MD prescribe under Medicare Part D?

In 2024, Kay F. Johnson-Keys, MD had 44 Medicare Part D claims for 20 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

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.