Matthew John Klein, MD
Emergency Medicine Physician · Eau Claire, WI
Matthew John Klein, MD is an emergency medicine physician with a practice address in Eau Claire, Wisconsin, and NPI 1396241766, issued on Apr 3, 2018. Check the license (Wisconsin 75535, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Matthew John Klein
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 75535 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2116 Craig RD, Eau Claire, WI 54701
- Phone
- (715) 858-4500
- Enumerated
- Apr 3, 2018
- Record last updated
- May 9, 2024
- Medicare enrollment
- Enrolled (PECOS I20230131003674); accepts Medicare assignment
- Medical or professional school
- University Of Florida College Of Medicine
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →
Also registered at 2116 Craig RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sharat Ahluwalia, MDNeurology Physician1629179221
- Omprakash Ahuja, MDPulmonary Disease Physician1861563058
- Brad Allar, PAPhysician Assistant1598795650
- Brent Amble, A.T.C., L.A.T.Athletic Trainer1235122771
Verify Matthew John Klein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 75535Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average emergency medicine physician in 2024
134 Medicare Part D claims for 101 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Oxycodone Hcl17 claims
- Cefdinir16 claims
- Prednisone14 claims
- Methocarbamol12 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
- Carepoint Emergency Medicine, PLLCEnglewood, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew John Klein among 1,464 emergency medicine physician records in Wisconsin
Matthew John Klein, MD 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 2018, is newer than 81% of them.
- NPI issued2018 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Record last updated2024 · 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.
All 1,464 in Wisconsin → Every provider in Eau Claire → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Patrick Ayer, MDEau Claire, WI 547011659358174
- Jeremy Baker, MDEau Claire, WI 547011568043222
- David Bardsley, M.D.Eau Claire, WI 547011386693711
- Cheryl Colbenson, D.O.Eau Claire, WI 547011114959970
- Kirk Dahl, MDEau Claire, WI 547011760440242
- Stanley Daniel, M.D.Eau Claire, WI 547011861535734
- Steven Hall, M.D.Eau Claire, WI 547011265531651
- William Haselow, M.D.Eau Claire, WI 547011811942444
Common questions
What is Matthew John Klein, MD's NPI number?
Matthew John Klein, MD's National Provider Identifier (NPI) is 1396241766, issued on Apr 3, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Matthew John Klein, MD located?
The NPPES record lists a practice address at 2116 Craig RD, Eau Claire, WI, 54701. Phone: (715) 858-4500. Providers update this record themselves, so call before visiting.
How can I verify Matthew John Klein, MD's license?
NPPES lists Wisconsin license number 75535, 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 John Klein, MD prescribe under Medicare Part D?
In 2024, Matthew John Klein, MD had 134 Medicare Part D claims for 101 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.