Catherine Diaz, APNP
Nurse Practitioner · Madison, WI
Catherine Diaz, APNP is a nurse practitioner with a practice address in Madison, Wisconsin, and NPI 1225439227, issued on Sep 9, 2014. Check the license (Wisconsin 5902, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Catherine Diaz
- Credential
- APNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 5902 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2601 W Beltline Hwy, Madison, WI 53713
- Phone
- (608) 417-2193
- Enumerated
- Sep 9, 2014
- Record last updated
- Sep 10, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (608) 417-2101
- Medicare enrollment
- Enrolled (PECOS I20141201001327); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 2601 W Beltline Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Catherine Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 5902Check 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 nurse practitioner in 2024
129 Medicare Part D claims for 48 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Metoprolol Succinate20 claims
- Eliquis14 claims
- Atorvastatin Calcium12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.4 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University OF Wisconsin Medical Foundation IncMadison, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
516 nurse practitioner records list a practice address in Madison
They are 516 of the 15,014 NPPES records with a practice address in Madison, and 3,995 nurse practitioner records in Wisconsin.
All 516 in Madison → All 3,995 in Wisconsin → Every provider in Madison →
Other nurse practitioner records in Wisconsin
- Caroline Aaberg, APNPMadison, WI1881384394
- Joyce Abbott, APNPOshkosh, WI1003824665
- Mohamed Abdelazim, APNPAppleton, WI1760266696
- Jacklyn Abel, AGACNP-BCMauston, WI1104631506
- Henrietta Abili, APNPGermantown, WI1174859524
- Jade Abts, NPGreen Bay, WI1992293708
- Karalyn Adam, DNP, RNMarshfield, WI1780933051
- Carol Adamczyk, MSNWauwatosa, WI1457502395
- Amanda Adams, NPMadison, WI1023366598
- Bernadette Adams, FNPWestby, WI1427047620
Common questions
What is Catherine Diaz, APNP's NPI number?
Catherine Diaz, APNP's National Provider Identifier (NPI) is 1225439227, issued on Sep 9, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Diaz, APNP located?
The NPPES record lists a practice address at 2601 W Beltline Hwy, Madison, WI, 53713. Phone: (608) 417-2193. Providers update this record themselves, so call before visiting.
How can I verify Catherine Diaz, APNP's license?
NPPES lists Wisconsin license number 5902, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Catherine Diaz, APNP prescribe under Medicare Part D?
In 2024, Catherine Diaz, APNP had 129 Medicare Part D claims for 48 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Catherine Diaz, APNP's MIPS final score?
The 2023 MIPS final score is 77.4 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.