Catherine Breck Holznecht, M.D.
Diagnostic Radiology Physician · Madison, WI
Catherine Breck Holznecht, M.D. is a diagnostic radiology physician with a practice address in Madison, Wisconsin, and NPI 1689960023, issued on Jun 23, 2011. Check the license (Wisconsin 60296, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Catherine Breck Holznecht
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 60296 WI
Self-reported in NPPES; status is on the state search - Practice location
- UW Hospital And Clinics, Madison, WI 53792
- Phone
- (608) 263-8340
- Enumerated
- Jun 23, 2011
- Record last updated
- Oct 6, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (608) 263-0682
- Medicare enrollment
- Enrolled (PECOS I20170531000738); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,005 in Wisconsin → Look up another NPI →
Also registered at UW Hospital And Clinics
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Catherine Breck Holznecht in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 60296Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Mercy Radiologists OF Dubuque PCDubuque, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine Breck Holznecht among 1,005 diagnostic radiology physician records in Wisconsin
Catherine Breck Holznecht, M.D. is one of 1,005 diagnostic radiology physician records with a practice address in Wisconsin. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 71% of them.
- NPI issued2011 · 71% of these records are older, 27% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2011 · median 2006 among the 664 with a school on file
- Record last updated2016 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
224 diagnostic radiology physician records list a practice address in Madison
They are 224 of the 15,014 NPPES records with a practice address in Madison, and 1,005 diagnostic radiology physician records in Wisconsin.
All 1,005 in Wisconsin → Every provider in Madison → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Donna Blankenbaker, MDMadison, WI 537921558322065
- Ralph Colburn, MDMadison, WI 537921730169624
- Arthur Desmet, MDMadison, WI 537921912975830
- Louis Fischer, M.D.Madison, WI 537921265404800
- Thomas Grist, MDMadison, WI 537921841269859
- John Jerisha, MDMadison, WI 537921053389288
- Newrhee Kim, MDMadison, WI 537921952370256
- Janet Kuhlman, MDMadison, WI 537921669440673
Common questions
What is Catherine Breck Holznecht, M.D.'s NPI number?
Catherine Breck Holznecht, M.D.'s National Provider Identifier (NPI) is 1689960023, issued on Jun 23, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Breck Holznecht, M.D. located?
The NPPES record lists a practice address at UW Hospital And Clinics, Madison, WI, 53792. Phone: (608) 263-8340. Providers update this record themselves, so call before visiting.
How can I verify Catherine Breck Holznecht, M.D.'s license?
NPPES lists Wisconsin license number 60296, 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.
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.