Michael Christensen, M.D.
Hospitalist Physician · Milwaukee, WI
Michael Christensen, M.D. is a hospitalist physician with a practice address in Milwaukee, Wisconsin, and NPI 1588754667, issued on Oct 13, 2006. Check the license (Wisconsin 56845, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michael Christensen
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 56845 WI
036084833 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1550 E Royall PL, Milwaukee, WI 53202
- Phone
- (414) 328-7146
- Enumerated
- Oct 13, 2006
- Record last updated
- Oct 31, 2023
- Medicaid IDs
- 036084833 IL
100022869 WI - Medicare enrollment
- Enrolled (PECOS I20120628000476); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1990
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 894 in Wisconsin → Look up another NPI →
Also registered at 1550 E Royall PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eleanor Sangalang, OTR/LOccupational Therapist1912945320
Verify Michael Christensen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 56845Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average hospitalist physician in 2024
185 Medicare Part D claims for 97 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 17 claims were for opioids.
Most prescribed
- Cefuroxime17 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.Grafton, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Christensen among 894 hospitalist physician records in Wisconsin
Michael Christensen, M.D. is one of 894 hospitalist physician records with a practice address in Wisconsin. 91% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 81% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated1990 · median 2011 among the 768 with a school on file
- Record last updated2023 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
229 hospitalist physician records list a practice address in Milwaukee
They are 229 of the 18,389 NPPES records with a practice address in Milwaukee, and 894 hospitalist physician records in Wisconsin.
All 894 in Wisconsin → Every provider in Milwaukee → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Aymen Khogali, MDMilwaukee, WI 532011689851412
- Vaishnavy Bhaskaruni, M.D.Milwaukee, WI 532101972866234
- S Chawla, M.D.Milwaukee, WI 532101235118704
- Kanan Gutgutia, M.D.Milwaukee, WI 532101336127141
- Lydia Assioun, M.D.Milwaukee, WI 532111487049128
- Loritz Chavez, M.D.Milwaukee, WI 532111801816517
- John Chou, MDMilwaukee, WI 532111215288444
- Lucian DorneanuMilwaukee, WI 532111922539790
Common questions
What is Michael Christensen, M.D.'s NPI number?
Michael Christensen, M.D.'s National Provider Identifier (NPI) is 1588754667, issued on Oct 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Christensen, M.D. located?
The NPPES record lists a practice address at 1550 E Royall PL, Milwaukee, WI, 53202. Phone: (414) 328-7146. Providers update this record themselves, so call before visiting.
How can I verify Michael Christensen, M.D.'s license?
NPPES lists Wisconsin license number 56845, 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 Christensen, M.D. prescribe under Medicare Part D?
In 2024, Michael Christensen, M.D. had 185 Medicare Part D claims for 97 beneficiaries; the average among hospitalist physician prescribers was 521. 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.