Kathleen E. Horowitz, MD
Obstetrics & Gynecology Physician · Menomonee Falls, WI
Kathleen E. Horowitz, MD is an obstetrics & gynecology physician with a practice address in Menomonee Falls, Wisconsin, and NPI 1205866993, issued on Jul 5, 2006. Check the license (Wisconsin 43737, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Kathleen E. Horowitz
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 43737 WI
Self-reported in NPPES; status is on the state search - Practice location
- N84W16889 Menomonee Ave, Menomonee Falls, WI 53051
- Phone
- (262) 251-7500
- Enumerated
- Jul 5, 2006
- Record last updated
- Jan 19, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (262) 251-7128
- Medicaid ID
- 34467600 WI
- Medicare enrollment
- Enrolled (PECOS I20120605000627); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2000
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 796 in Wisconsin → Look up another NPI →
Also registered at N84W16889 Menomonee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Betsy Appel, MDSurgery Physician1780973420
- Denise Balistrieri, O.T.R.Occupational Therapist1750326997
- Jenna Biesterfeld, DPTPhysical Therapist1528957065
- Mary Birschbach, OTROccupational Therapist1477710929
- Heather Bougie, P.T.Physical Therapist1972531663
Verify Kathleen E. Horowitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 43737Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
20 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Bills Medicare through one group practice
- Mountain Park Health CenterPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathleen E. Horowitz among 796 obstetrics & gynecology physician records in Wisconsin
Kathleen E. Horowitz, 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 fileYes · 60% of these records are
- Graduated2000 · median 2007 among the 478 with a school on file
- Record last updated2011 · 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).
11 obstetrics & gynecology physician records list a practice address in Menomonee Falls
They are 11 of the 1,003 NPPES records with a practice address in Menomonee Falls, and 796 obstetrics & gynecology physician records in Wisconsin.
All 796 in Wisconsin → Every provider in Menomonee Falls → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- George Geanon, MDMenomonee Falls, WI 530511225060460
- Sharon Greggs, M.D.Menomonee Falls, WI 530511477604361
- Susan Kroener, D.O.Menomonee Falls, WI 530511073586061
- Kerry Mattingly, MDMenomonee Falls, WI 530511184740284
- Ushma Patel, MDMenomonee Falls, WI 530511821587163
- Stephanie Rajchel, DOMenomonee Falls, WI 530511821380783
- Anuradha Raman, M.D.Menomonee Falls, WI 530511174597579
- Rochelle Sohl, MDMenomonee Falls, WI 530511033126669
Common questions
What is Kathleen E. Horowitz, MD's NPI number?
Kathleen E. Horowitz, MD's National Provider Identifier (NPI) is 1205866993, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen E. Horowitz, MD located?
The NPPES record lists a practice address at N84W16889 Menomonee Ave, Menomonee Falls, WI, 53051. Phone: (262) 251-7500. Providers update this record themselves, so call before visiting.
How can I verify Kathleen E. Horowitz, MD's license?
NPPES lists Wisconsin license number 43737, 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 Kathleen E. Horowitz, MD prescribe under Medicare Part D?
In 2024, Kathleen E. Horowitz, MD had 20 Medicare Part D claims; 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.