NPPES file of Aug 9, 2026

Joy P. Walker, MD

Dermatology Physician · Eau Claire, WI

Joy P. Walker, MD is a dermatology physician with a practice address in Eau Claire, Wisconsin, and NPI 1033198429, issued on Jan 13, 2006. Check the license (Wisconsin 37074, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1033198429
Name
Joy P. Walker
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
37074 WI
Self-reported in NPPES; status is on the state search
Practice location
1221 Whipple St, Eau Claire, WI 54703
Phone
(715) 838-5222
Enumerated
Jan 13, 2006
Record last updated
Jan 29, 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 1221 Whipple St

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

  1. Justine Abel, DOEmergency Medicine Physician1861830507
  2. Andera Anderson, RPHPharmacist1598213761
  3. Andrea Anderson, CRNACertified Registered Nurse Anesthetist1033101894
  4. Charlene Anderson, APNPNurse Practitioner1194057752
  5. Gwen Anderson, CRNACertified Registered Nurse Anesthetist1316103369
  6. Hailee Anderson, CRNACertified Registered Nurse Anesthetist1598453425

Verify Joy P. Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 37074
    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
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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86% fewer Medicare Part D claims than the average dermatology physician in 2024

111 Medicare Part D claims for 41 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Joy Walker111
  2. Specialty average797

Most prescribed

  1. Betamethasone Dipropionate13 claims
  2. Clobetasol Propionate12 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.

Joy P. Walker among 325 dermatology physician records in Wisconsin

Joy P. Walker, MD is one of 325 dermatology physician records with a practice address in Wisconsin. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 57% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 70% of these records are
  • Record last updated2024 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Wisconsin

There are 325 dermatology physician records in Wisconsin.

The 8 dermatology physician records with the nearest ZIP codes

  1. Mary Lou Ernst-Woodhouse, DOEau Claire, WI 547031225102452
  2. Emily Fibeger, DOEau Claire, WI 547031508026980
  3. Sterling McKissack, M.D.Eau Claire, WI 547031285033290
  4. Johann Peikert, MDEau Claire, WI 547031881673044
  5. Stephanie Tadayon, MDEau Claire, WI 547031134650476
  6. Lon Christianson, MDEau Claire, WI 547011760461156
  7. Elizabeth Demaree, DOEau Claire, WI 547011285164772
  8. Michael Diestelmeier, MDEau Claire, WI 547011851370241

Common questions

What is Joy P. Walker, MD's NPI number?

Joy P. Walker, MD's National Provider Identifier (NPI) is 1033198429, issued on Jan 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joy P. Walker, MD located?

The NPPES record lists a practice address at 1221 Whipple St, Eau Claire, WI, 54703. Phone: (715) 838-5222. Providers update this record themselves, so call before visiting.

How can I verify Joy P. Walker, MD's license?

NPPES lists Wisconsin license number 37074, 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.

How much does Joy P. Walker, MD prescribe under Medicare Part D?

In 2024, Joy P. Walker, MD had 111 Medicare Part D claims for 41 beneficiaries; the average among dermatology physician prescribers was 797. 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.