Aaron Michael Ginster, M.D.
Emergency Medicine Physician · Grafton, WI
Aaron Michael Ginster, M.D. is an emergency medicine physician with a practice address in Grafton, Wisconsin, and NPI 1265726582, issued on Jun 3, 2011. Check the license (Wisconsin 63598, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Aaron Michael Ginster
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 63598 WI
125059600 IL
Self-reported in NPPES; status is on the state search - Practice location
- 975 Port Washington RD, Grafton, WI 53024
- Phone
- (262) 329-1000
- Enumerated
- Jun 3, 2011
- Record last updated
- Jul 8, 2024
- Medicaid ID
- 100045979 WI
- Medicare enrollment
- Enrolled (PECOS I20150708001524); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2011
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →
Also registered at 975 Port Washington RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Patrick AndrewsPhysical Therapist1689481962
Verify Aaron Michael Ginster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 63598Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% more Medicare Part D claims than the average emergency medicine physician in 2024
340 Medicare Part D claims for 242 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 36 claims were for opioids.
Most prescribed
- Ondansetron Odt36 claims
- Hydrocodone-Acetaminophen33 claims
- Doxycycline Monohydrate32 claims
- Cefdinir28 claims
- Cephalexin20 claims
- Amoxicillin-Clavulanate Potass17 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
- Ermed, SCMilwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aaron Michael Ginster among 1,464 emergency medicine physician records in Wisconsin
Aaron Michael Ginster, 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 2011, is newer than 58% of them.
- NPI issued2011 · 58% of these records are older, 38% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2011 · median 2011 among the 844 with a school on file
- 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).
8 emergency medicine physician records list a practice address in Grafton
They are 8 of the 459 NPPES records with a practice address in Grafton, and 1,464 emergency medicine physician records in Wisconsin.
All 1,464 in Wisconsin → Every provider in Grafton → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jacob Cihla, MDGrafton, WI 530241538789318
- Phawanjit Demos, D.O.Grafton, WI 530241205065026
- Lubomyr Domashevsky, MDGrafton, WI 530241619927159
- Pamela Krol, MDGrafton, WI 530241922024082
- Bjorn Schweinsberg, MDGrafton, WI 530241750464533
- Rajeev Seth, D.O.Grafton, WI 530241881707073
- Steven Zils, MDGrafton, WI 530241659451425
- Sanjay Chopra, DOHartford, WI 530271922017821
Common questions
What is Aaron Michael Ginster, M.D.'s NPI number?
Aaron Michael Ginster, M.D.'s National Provider Identifier (NPI) is 1265726582, issued on Jun 3, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Aaron Michael Ginster, M.D. located?
The NPPES record lists a practice address at 975 Port Washington RD, Grafton, WI, 53024. Phone: (262) 329-1000. Providers update this record themselves, so call before visiting.
How can I verify Aaron Michael Ginster, M.D.'s license?
NPPES lists Wisconsin license number 63598, 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 Aaron Michael Ginster, M.D. prescribe under Medicare Part D?
In 2024, Aaron Michael Ginster, M.D. had 340 Medicare Part D claims for 242 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.