Sean Anthony Mackman, M.D.
Emergency Medicine Physician · Milwaukee, WI
Sean Anthony Mackman, M.D. is an emergency medicine physician with a practice address in Milwaukee, Wisconsin, and NPI 1780115634, issued on Mar 22, 2017. Check the license (Wisconsin 71710-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Sean Anthony Mackman
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 71710-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 9200 W Wisconsin Ave # 1P, Milwaukee, WI 53226
- Phone
- (414) 805-6450
- Enumerated
- Mar 22, 2017
- Record last updated
- Jul 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (414) 805-6464
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →
Also registered at 9200 W Wisconsin Ave # 1P
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Koenig, DOEmergency Medicine Physician1346739042
Verify Sean Anthony Mackman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 71710-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average emergency medicine physician in 2024
68 Medicare Part D claims for 54 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
Sean Anthony Mackman among 1,464 emergency medicine physician records in Wisconsin
Sean Anthony Mackman, 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 2017, is newer than 78% of them.
- NPI issued2017 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2021 · 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
- Eric Adar, MDWauwatosa, WI 532261255325726
- Tom Aufderheide, MDMilwaukee, WI 532261336190859
- Charles Cady, MDMilwaukee, WI 532261831140227
- Louis-Marcel Cesar, M.D.Milwaukee, WI 532261235116690
- Mario Colella, D.O.Milwaukee, WI 532261336106277
- Stephen Hargarten, MDMilwaukee, WI 532261760433502
- Manuel Hernandez, M.D.Milwaukee, WI 532261336102540
- Michael Lutes, MDMilwaukee, WI 532261629029475
Common questions
What is Sean Anthony Mackman, M.D.'s NPI number?
Sean Anthony Mackman, M.D.'s National Provider Identifier (NPI) is 1780115634, issued on Mar 22, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Sean Anthony Mackman, M.D. located?
The NPPES record lists a practice address at 9200 W Wisconsin Ave # 1P, Milwaukee, WI, 53226. Phone: (414) 805-6450. Providers update this record themselves, so call before visiting.
How can I verify Sean Anthony Mackman, M.D.'s license?
NPPES lists Wisconsin license number 71710-20, 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 Sean Anthony Mackman, M.D. prescribe under Medicare Part D?
In 2024, Sean Anthony Mackman, M.D. had 68 Medicare Part D claims for 54 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.