NPPES file of Aug 9, 2026

Matthew Olmstead, D.O.

Emergency Medicine Physician · Eau Claire, WI

Matthew Olmstead, D.O. is an emergency medicine physician with a practice address in Eau Claire, Wisconsin, and NPI 1093836843, issued on Apr 2, 2007. Check the license (Wisconsin 50534, 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
1093836843
Name
Matthew Olmstead
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
50534 WI
5101015633 MI
Self-reported in NPPES; status is on the state search
Practice location
1400 Bellinger St, Eau Claire, WI 54703
Phone
(715) 838-3635
Enumerated
Apr 2, 2007
Record last updated
Jul 13, 2022
Medicare enrollment
Enrolled (PECOS I20071220000512); 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 1400 Bellinger St

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

  1. Ajit Abraham, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1487899936
  2. Gina Adel, MDRheumatology Physician1841231727
  3. Adeniyi Adenote, PT, DPTPhysical Therapist1114564333
  4. Kirsten Aexel Handley, CNMAdvanced Practice Midwife1952523078
  5. Andrea Aguayo, PHARMDPharmacist1003507492
  6. Boshra Al Ibraheem, MDFamily Medicine Physician1376399444

Verify Matthew Olmstead in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 50534
    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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56% fewer Medicare Part D claims than the average emergency medicine physician in 2024

100 Medicare Part D claims for 64 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Matthew Olmstead100
  2. Specialty average226

Most prescribed

  1. Prednisone11 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. Mayo Clinic Health System-Northwest Wisconsin Region IncEau Claire, WI

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

Matthew Olmstead among 1,464 emergency medicine physician records in Wisconsin

Matthew Olmstead, D.O. is one of 1,464 emergency medicine physician records with a practice address in Wisconsin. 79% 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 42% of them.

  • NPI issued2007 · 42% of these records are older, 52% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2003 · median 2011 among the 844 with a school on file
  • Record last updated2022 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

66 emergency medicine physician records list a practice address in Eau Claire

They are 66 of the 3,085 NPPES records with a practice address in Eau Claire, and 1,464 emergency medicine physician records in Wisconsin.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Alex Beuning, MDEau Claire, WI 547031295715860
  2. Susan Cullinan, MDEau Claire, WI 547031215995980
  3. Michael Hartman, MDEau Claire, WI 547031962450544
  4. Paul Horvath, M.D.Eau Claire, WI 547031912029141
  5. John Jacobson, MDEau Claire, WI 547031508829748
  6. Paul Krantz, D.O.Eau Claire, WI 547031447289053
  7. Sheffey Massey, DOEau Claire, WI 547031609834365
  8. Brian Pauley, MDEau Claire, WI 547031730137654

Common questions

What is Matthew Olmstead, D.O.'s NPI number?

Matthew Olmstead, D.O.'s National Provider Identifier (NPI) is 1093836843, issued on Apr 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Olmstead, D.O. located?

The NPPES record lists a practice address at 1400 Bellinger St, Eau Claire, WI, 54703. Phone: (715) 838-3635. Providers update this record themselves, so call before visiting.

How can I verify Matthew Olmstead, D.O.'s license?

NPPES lists Wisconsin license number 50534, 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 Matthew Olmstead, D.O. prescribe under Medicare Part D?

In 2024, Matthew Olmstead, D.O. had 100 Medicare Part D claims for 64 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.