Charles Kooiker, DO
Emergency Medicine Physician · Winona, MN
Charles Kooiker, DO is an emergency medicine physician with a practice address in Winona, Minnesota, and NPI 1477092948, issued on Feb 17, 2017. Check the license (Minnesota 69217, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Charles Kooiker
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 69217 MN
Self-reported in NPPES; status is on the state search - Practice location
- 855 Mankato Ave, Winona, MN 55987
- Phone
- (507) 454-3650
- Enumerated
- Feb 17, 2017
- Record last updated
- Jun 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210706001445); accepts Medicare assignment
- Medical or professional school
- Des Moines University Of Osteopathic Medicine And Health Sciences, 2017
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,348 in Minnesota → Look up another NPI →
Also registered at 855 Mankato Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Everett Beguin, MDFamily Medicine Physician1134139652
Verify Charles Kooiker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 69217Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average emergency medicine physician in 2024
137 Medicare Part D claims for 102 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Cephalexin14 claims
- Oxycodone Hcl14 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.
One hospital affiliation
- Winona Health ServicesWinona, MN · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Charles Kooiker among 1,348 emergency medicine physician records in Minnesota
Charles Kooiker, DO is one of 1,348 emergency medicine physician records with a practice address in Minnesota. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 76% of them.
- NPI issued2017 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2017 · median 2012 among the 818 with a school on file
- Record last updated2021 · 45% 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 Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 emergency medicine physician records list a practice address in Winona
They are 7 of the 876 NPPES records with a practice address in Winona, and 1,348 emergency medicine physician records in Minnesota.
All 1,348 in Minnesota → Every provider in Winona → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Bethany Corliss Da Rocha, M.D.Winona, MN 559871659670016
- Marc Dummit, MDWinona, MN 559871083631584
- Joseph KooWinona, MN 559871851616791
- Carlos Morales, MDWinona, MN 559871306863808
- Christopher Schubert, MDWinona, MN 559871396830527
- Christopher WatrasWinona, MN 559871366708927
- Luke HellandWabasha, MN 559811457617193
- Kent Jeffery, MDWabasha, MN 559811528020625
Common questions
What is Charles Kooiker, DO's NPI number?
Charles Kooiker, DO's National Provider Identifier (NPI) is 1477092948, issued on Feb 17, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Charles Kooiker, DO located?
The NPPES record lists a practice address at 855 Mankato Ave, Winona, MN, 55987. Phone: (507) 454-3650. Providers update this record themselves, so call before visiting.
How can I verify Charles Kooiker, DO's license?
NPPES lists Minnesota license number 69217, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Charles Kooiker, DO prescribe under Medicare Part D?
In 2024, Charles Kooiker, DO had 137 Medicare Part D claims for 102 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.