NPPES file of Aug 9, 2026

Dena M. Mayer, RD

Registered Dietitian · Oshkosh, WI

Dena M. Mayer, RD is a registered dietitian with a practice address in Oshkosh, Wisconsin, and NPI 1588794895, issued on Mar 6, 2007. Check the license (Wisconsin 1445, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588794895
Name
Dena M. Mayer
Credential
RD
Primary taxonomy
Registered Dietitian 133V00000X
License number
1445 WI
Self-reported in NPPES; status is on the state search
Practice location
855 N Westhaven Dr, Oshkosh, WI 54904
Phone
(920) 303-8700
Enumerated
Mar 6, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20110122000023); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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8 nearest registered dietitian records → All 1,457 in Wisconsin → Look up another NPI →

Also registered at 855 N Westhaven Dr

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

  1. Rami Abumasmah, MDHematology & Oncology Physician1972779551
  2. Abdulmajid AdamHospitalist Physician1528362258
  3. Awais Ahmed, MDGastroenterology Physician1316213481
  4. Kate Alexander, PA-CPhysician Assistant1700466414
  5. Hussein Alramini, M.D.Hospitalist Physician1497106512
  6. Ammar Alzoubi, MDInternal Medicine Physician1598773152

Verify Dena M. Mayer 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 1445    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

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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Bills Medicare through one group practice

  1. Aurora Medical Group, Inc.Milwaukee, WI

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

Dena M. Mayer among 1,457 registered dietitian records in Wisconsin

Dena M. Mayer, RD is one of 1,457 registered dietitian records with a practice address in Wisconsin. 12% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 16% of them.

  • NPI issued2007 · 16% of these records are older, 76% newer
  • In a Medicare fileYes · 12% of these records are
  • In the CMS Doctors and Clinicians fileYes · 13% of these records are
  • Graduated1992 · median 2013 among the 182 with a school on file
  • Record last updated2007 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 133V00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Registered Dietitian providers in Wisconsin

There are 1,457 registered dietitian records in Wisconsin.

All 1,457 in Wisconsin → Every provider in Oshkosh → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Laurelyn Harper, MS, RD, CDOshkosh, WI 549041952770364
  2. Keri Karst, RD, CDOshkosh, WI 549041043559982
  3. Renee Neubauer, RDOshkosh, WI 549041427255926
  4. Amanda Pomeroy, MCN, RD, CDOshkosh, WI 549041477179059
  5. Julia SalomonOshkosh, WI 549041992070650
  6. Kate Salzsieder, RDOshkosh, WI 549041679722938
  7. Molly Spaulding, RDOshkosh, WI 549041629360839
  8. Bryanna Umentum, RDNOshkosh, WI 549041235098732

Common questions

What is Dena M. Mayer, RD's NPI number?

Dena M. Mayer, RD's National Provider Identifier (NPI) is 1588794895, issued on Mar 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Dena M. Mayer, RD located?

The NPPES record lists a practice address at 855 N Westhaven Dr, Oshkosh, WI, 54904. Phone: (920) 303-8700. Providers update this record themselves, so call before visiting.

How can I verify Dena M. Mayer, RD's license?

NPPES lists Wisconsin license number 1445, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity 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.