NPPES file of Aug 9, 2026

Elizabeth G. Diaz, PA-C

Physician Assistant · Madison, WI

Elizabeth G. Diaz, PA-C is a physician assistant with a practice address in Madison, Wisconsin, and NPI 1891147542, issued on Jul 6, 2016. Check the license (Wisconsin 4828-23, as entered in NPPES) with the Wisconsin board that licenses this profession; 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
1891147542
Name
Elizabeth G. Diaz
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
4828-23 WI
Self-reported in NPPES; status is on the state search
Practice location
301 S Westfield RD Ste 120, Madison, WI 53717
Phone
(608) 282-8050
Enumerated
Jul 6, 2016
Record last updated
Mar 8, 2024
Medicaid ID
1891147542 WI
Medicare enrollment
Enrolled (PECOS I20180212002836); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 301 S Westfield RD Ste 120

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

  1. Molly Carrell, AGPCNP-BCNurse Practitioner1093552309
  2. Elizabeth Fleming, MDGeriatric Medicine (Internal Medicine) Physician1295028876
  3. Anna NotermanNurse Practitioner1861101784

Verify Elizabeth G. Diaz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 4828-23
    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
Find the Wisconsin license search

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87% fewer Medicare Part D claims than the average physician assistant in 2024

109 Medicare Part D claims for 38 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Elizabeth Diaz109
  2. Specialty average830

Most prescribed

  1. Furosemide14 claims
  2. Gabapentin13 claims
  3. Metoprolol Succinate12 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

  1. University OF Wisconsin Medical Foundation IncVerona, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

396 physician assistant records list a practice address in Madison

They are 396 of the 15,014 NPPES records with a practice address in Madison, and 3,475 physician assistant records in Wisconsin.

Other physician assistant records in Wisconsin

  1. Amber Abraham, PA-CGreen Bay, WI1598993297
  2. Roopa AchuriNeenah, WI1225531635
  3. Carleen Acker, PA-CMadison, WI1447514773
  4. Lauren Ackerman, PA-CCudahy, WI1992357982
  5. Jocelyn Acompanado, PA-CSheboygan, WI1770521486
  6. Kora Adam, PA-CBurlington, WI1952666554
  7. Stephanie Adamczyk, PAMilwaukee, WI1063007441
  8. Kristen Adamo, PANew Berlin, WI1437179520
  9. Beth Adams, PA-CMequon, WI1801237540
  10. Eric Adams, PAGreen Bay, WI1528445087

Common questions

What is Elizabeth G. Diaz, PA-C's NPI number?

Elizabeth G. Diaz, PA-C's National Provider Identifier (NPI) is 1891147542, issued on Jul 6, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth G. Diaz, PA-C located?

The NPPES record lists a practice address at 301 S Westfield RD Ste 120, Madison, WI, 53717. Phone: (608) 282-8050. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth G. Diaz, PA-C's license?

NPPES lists Wisconsin license number 4828-23, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Elizabeth G. Diaz, PA-C prescribe under Medicare Part D?

In 2024, Elizabeth G. Diaz, PA-C had 109 Medicare Part D claims for 38 beneficiaries; the average among physician assistant prescribers was 830. 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.