NPPES file of Aug 9, 2026

Christy Chang, APNP

Nurse Practitioner · Fond Du Lac, WI

Christy Chang, APNP is a nurse practitioner with a practice address in Fond Du Lac, Wisconsin, and NPI 1023460110, issued on Jul 13, 2016. Check the license (Wisconsin 15421, 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
1023460110
Name
Christy Chang
Credential
APNP
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
15421 WI
1542133 WI
32088931 WI
Self-reported in NPPES; status is on the state search
Practice location
430 E Division St, Fond Du Lac, WI 54935
Phone
(920) 926-8200
Enumerated
Jul 13, 2016
Record last updated
Dec 20, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 430 E Division St

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

  1. Kabir Ahmed, M.D.Sleep Medicine (Internal Medicine) Physician1528325891
  2. Desirae AlsumNurse Practitioner1912748401
  3. Jan Andrews, RNMedical-Surgical Registered Nurse1972594679
  4. Cheryl Apel, RNRegistered Nurse1750181681
  5. Mary Arrigoni, CRNACertified Registered Nurse Anesthetist1033106125
  6. Andrea Aul, MDPediatrics Physician1447888110

Verify Christy Chang 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 15421    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
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99% fewer Medicare Part D claims than the average nurse practitioner in 2024

15 Medicare Part D claims for 12 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Christy Chang15
  2. Specialty average1,109

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.

60 nurse practitioner records list a practice address in Fond Du Lac

They are 60 of the 1,312 NPPES records with a practice address in Fond Du Lac, and 3,995 nurse practitioner records in Wisconsin.

All 60 in Fond Du Lac → All 3,995 in Wisconsin → Every provider in Fond Du Lac →

Other nurse practitioner records in Wisconsin

  1. Caroline Aaberg, APNPMadison, WI1881384394
  2. Joyce Abbott, APNPOshkosh, WI1003824665
  3. Mohamed Abdelazim, APNPAppleton, WI1760266696
  4. Jacklyn Abel, AGACNP-BCMauston, WI1104631506
  5. Henrietta Abili, APNPGermantown, WI1174859524
  6. Jade Abts, NPGreen Bay, WI1992293708
  7. Karalyn Adam, DNP, RNMarshfield, WI1780933051
  8. Carol Adamczyk, MSNWauwatosa, WI1457502395
  9. Amanda Adams, NPMadison, WI1023366598
  10. Bernadette Adams, FNPWestby, WI1427047620

Common questions

What is Christy Chang, APNP's NPI number?

Christy Chang, APNP's National Provider Identifier (NPI) is 1023460110, issued on Jul 13, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Christy Chang, APNP located?

The NPPES record lists a practice address at 430 E Division St, Fond Du Lac, WI, 54935. Phone: (920) 926-8200. Providers update this record themselves, so call before visiting.

How can I verify Christy Chang, APNP's license?

NPPES lists Wisconsin license number 15421, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Christy Chang, APNP prescribe under Medicare Part D?

In 2024, Christy Chang, APNP had 15 Medicare Part D claims for 12 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.