Michael George Hartmann, DO
Emergency Medicine Physician · Marinette, WI
Michael George Hartmann, DO is an emergency medicine physician with a practice address in Marinette, Wisconsin, and NPI 1215986930, issued on May 9, 2006. Check the license (Wisconsin 50251, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michael George Hartmann
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 50251 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3003 University Dr, Marinette, WI 54143
- Phone
- (715) 735-4200
- Enumerated
- May 9, 2006
- Record last updated
- Jul 16, 2024
- Fax
- (715) 735-8019
- Medicaid ID
- 43541400 WI
- Medicare enrollment
- Enrolled (PECOS I20070924000354); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2000
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →
Also registered at 3003 University Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brooke Berg, PA-CPhysician Assistant1023772084
- Jacob Brugger, MDEmergency Medicine Physician1619474129
- Kirsten Buck, M.D.Anesthesiology Physician1366447278
Verify Michael George Hartmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 50251Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% more Medicare Part D claims than the average emergency medicine physician in 2024
286 Medicare Part D claims for 167 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Prednisone53 claims
- Cephalexin22 claims
- Azithromycin13 claims
- Pantoprazole Sodium13 claims
- Ketorolac Tromethamine12 claims
- Glipizide11 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
- Aurora Medical Group, Inc.Marinette, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael George Hartmann among 1,464 emergency medicine physician records in Wisconsin
Michael George Hartmann, DO 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2000 · 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).
11 emergency medicine physician records list a practice address in Marinette
They are 11 of the 452 NPPES records with a practice address in Marinette, and 1,464 emergency medicine physician records in Wisconsin.
All 1,464 in Wisconsin → Every provider in Marinette → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Bianca Asan Borja, M.D.Marinette, WI 541431306258728
- Jacob Brugger, MDMarinette, WI 541431619474129
- Aubrey Hoye, DOMarinette, WI 541431396977278
- James Reeves, D.O.Marinette, WI 541431437537248
- Kevin Reid, MDMarinette, WI 541431831652940
- Richard Stein, M.D.Marinette, WI 541431033143318
- Jeffrey Swift, MDMarinette, WI 541431548569767
- Siarhei Vysotski, M.D.Marinette, WI 541431902149479
Common questions
What is Michael George Hartmann, DO's NPI number?
Michael George Hartmann, DO's National Provider Identifier (NPI) is 1215986930, issued on May 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael George Hartmann, DO located?
The NPPES record lists a practice address at 3003 University Dr, Marinette, WI, 54143. Phone: (715) 735-4200. Providers update this record themselves, so call before visiting.
How can I verify Michael George Hartmann, DO's license?
NPPES lists Wisconsin license number 50251, 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 Michael George Hartmann, DO prescribe under Medicare Part D?
In 2024, Michael George Hartmann, DO had 286 Medicare Part D claims for 167 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.