Robert Lee Christiansen, DO
Hospitalist Physician · Milwaukee, WI
Robert Lee Christiansen, DO is a hospitalist physician with a practice address in Milwaukee, Wisconsin, and NPI 1508506585, issued on Mar 29, 2022. Check the license (Wisconsin 81439, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Robert Lee Christiansen
- Credential
- DO
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 81439 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2900 W Oklahoma Ave, Milwaukee, WI 53215
- Phone
- (414) 649-6000
- Enumerated
- Mar 29, 2022
- Record last updated
- Jul 4, 2026
- Medicaid ID
- 100328047 WI
- Medicare enrollment
- Enrolled (PECOS I20250625000982); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 894 in Wisconsin → Look up another NPI →
Also registered at 2900 W Oklahoma Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert Lee Christiansen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 81439Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average hospitalist physician in 2024
40 Medicare Part D claims for 18 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of 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.Hartford, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Lee Christiansen among 894 hospitalist physician records in Wisconsin
Robert Lee Christiansen, DO 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 2022, is newer than 93% of them.
- NPI issued2022 · 93% of these records are older, 3% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated2018 · median 2011 among the 768 with a school on file
- Record last updated2026 · 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
- Amit Aneja, M.D.Milwaukee, WI 532151487891560
- Titilola Britto, MDMilwaukee, WI 532151982697215
- Deepak Chikkala, MDMilwaukee, WI 532151679582720
- Hanna Cusey, M.D.Milwaukee, WI 532151487812913
- Anjum Dalvi, M.D.Milwaukee, WI 532151619102449
- Akbar Dastagir, M.D.Milwaukee, WI 532151316145071
- Bradley Gose, M.D.Milwaukee, WI 532151780888115
- Hammad Haider-Shah, MDMilwaukee, WI 532151881709939
Common questions
What is Robert Lee Christiansen, DO's NPI number?
Robert Lee Christiansen, DO's National Provider Identifier (NPI) is 1508506585, issued on Mar 29, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Robert Lee Christiansen, DO located?
The NPPES record lists a practice address at 2900 W Oklahoma Ave, Milwaukee, WI, 53215. Phone: (414) 649-6000. Providers update this record themselves, so call before visiting.
How can I verify Robert Lee Christiansen, DO's license?
NPPES lists Wisconsin license number 81439, 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 Robert Lee Christiansen, DO prescribe under Medicare Part D?
In 2024, Robert Lee Christiansen, DO had 40 Medicare Part D claims for 18 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.