NPPES file of Aug 9, 2026

Christopher Arndt, M.D.

Emergency Medicine Physician · Milwaukee, WI

Christopher Arndt, M.D. is an emergency medicine physician with a practice address in Milwaukee, Wisconsin, and NPI 1558709105, issued on Jun 5, 2013. Check the license (Wisconsin 65300-20, 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
1558709105
Name
Christopher Arndt
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
65300-20 WI
R-9771 IA
Self-reported in NPPES; status is on the state search
Practice location
2900 W Oklahoma Ave, Milwaukee, WI 53215
Phone
(414) 649-7299
Enumerated
Jun 5, 2013
Record last updated
Jun 6, 2022
Medicare enrollment
Enrolled (PECOS I20160615000004); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2013
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 emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →

Also registered at 2900 W Oklahoma Ave

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

  1. Hamza Abdul Majeed, DOHospitalist Physician1881013282
  2. Vincent Abejuela, DOHospitalist Physician1356928543
  3. Islam Abo Al Nadie, MDHospitalist Physician1326618786
  4. Zaid Abood, MDHospitalist Physician1194254334
  5. Syed AbutalibHematology & Oncology Physician1114183290
  6. Kalid Adab, MDHematology & Oncology Physician1346473345

Verify Christopher Arndt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 65300-20    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

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9% fewer Medicare Part D claims than the average emergency medicine physician in 2024

205 Medicare Part D claims for 147 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 44 claims were for opioids.

  1. Christopher Arndt205
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen33 claims
  2. Amoxicillin-Clavulanate Potass17 claims
  3. Cephalexin14 claims
  4. Prednisone14 claims
  5. Ondansetron Odt12 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 2 group practices

  1. Aurora Medical Group, Inc.Sheboygan, WI
  2. Ermed, SCMilwaukee, WI

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

Christopher Arndt among 1,464 emergency medicine physician records in Wisconsin

Christopher Arndt, M.D. 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 2013, is newer than 64% of them.

  • NPI issued2013 · 64% of these records are older, 33% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2013 · 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).

358 emergency medicine physician records list a practice address in Milwaukee

They are 358 of the 18,389 NPPES records with a practice address in Milwaukee, and 1,464 emergency medicine physician records in Wisconsin.

All 1,464 in Wisconsin → Every provider in Milwaukee → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Kevin Averill, MDMilwaukee, WI 532151700834645
  2. Michael Becker, MDMilwaukee, WI 532151073561908
  3. David Bokerman, MDMilwaukee, WI 532151336107986
  4. Andrew Calvert, MDMilwaukee, WI 532151396703534
  5. Eduardo Castro, MDMilwaukee, WI 532151942258884
  6. Glenn Gessert, MDMilwaukee, WI 532151255399739
  7. Kyle Hansen, MDMilwaukee, WI 532151417905035
  8. William Harshbarger, MDMilwaukee, WI 532151750349916

Common questions

What is Christopher Arndt, M.D.'s NPI number?

Christopher Arndt, M.D.'s National Provider Identifier (NPI) is 1558709105, issued on Jun 5, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Arndt, M.D. located?

The NPPES record lists a practice address at 2900 W Oklahoma Ave, Milwaukee, WI, 53215. Phone: (414) 649-7299. Providers update this record themselves, so call before visiting.

How can I verify Christopher Arndt, M.D.'s license?

NPPES lists Wisconsin license number 65300-20, 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 Christopher Arndt, M.D. prescribe under Medicare Part D?

In 2024, Christopher Arndt, M.D. had 205 Medicare Part D claims for 147 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.

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.