Doctor profile · Federal record

Dr. Catherine Holznecht, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Student in an Organized Health Care Education/Training Program · Madison, WI

  • NPI 1689960023
  • Accepts Medicare
  • 15 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
Uw Hospital and Clinics, 600 Highland Ave, H4/831
Madison, WI 537920001
(608) 263-8340
fax (608) 263-0682
Mailing address
7974 Uw Health CT
Middleton, WI 535625531

Credentials & registration

NPPES · NUCC
NPI registered
June 2011 — 15 yrs on file
Profile last updated
October 6, 2016
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
Wisconsin #60296

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1689960023. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
164
Distinct HCPCS
4
Medicare allowed
$2,191
HCPCS Description Services Patients Avg allowed
71045 X-ray of chest, 1 view 113 60 $8
77063 Screening 3d breast mammography 18 18 $27
77067 Screening mammography 18 18 $34
71046 X-ray of chest, 2 views 15 15 $10

In context: peer comparison

Among 64 peers in Madison Diagnostic Radiology Physician, average services per provider: 113. This provider delivers 1.5× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Catherine Holznecht's medical specialty?
Dr. Catherine Holznecht practices Diagnostic Radiology Physician in Madison, WI.
Where does Dr. Catherine Holznecht practice?
Dr. Catherine Holznecht practices at Uw Hospital and Clinics, Madison, WI 537920001. Office phone: 6082638340.
What is Dr. Catherine Holznecht's NPI?
Dr. Catherine Holznecht's National Provider Identifier (NPI) is 1689960023, issued by NPPES.
Does Dr. Catherine Holznecht accept Medicare assignment?
Yes. Dr. Catherine Holznecht accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Catherine Holznecht commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Screening 3d breast mammography (HCPCS 77063); Screening mammography (HCPCS 77067). Source: CMS Medicare Physician & Other Practitioners file.