Karl E. Baum, MD
Hospitalist Physician · Oshkosh, WI
Karl E. Baum, MD is a hospitalist physician with a practice address in Oshkosh, Wisconsin, and NPI 1497749402, issued on Sep 6, 2005. Check the license (Wisconsin 35816, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Karl E. Baum
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 35816 WI
Self-reported in NPPES; status is on the state search - Practice location
- 855 N Westhaven Dr, Oshkosh, WI 54904
- Phone
- (920) 303-8700
- Enumerated
- Sep 6, 2005
- Record last updated
- Oct 18, 2024
- Medicaid ID
- 32234700 WI
- Medicare enrollment
- Enrolled (PECOS I20050215000544); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 1993
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 894 in Wisconsin → Look up another NPI →
Also registered at 855 N Westhaven Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rami Abumasmah, MDHematology & Oncology Physician1972779551
- Abdulmajid AdamHospitalist Physician1528362258
- Awais Ahmed, MDGastroenterology Physician1316213481
- Kate Alexander, PA-CPhysician Assistant1700466414
- Hussein Alramini, M.D.Hospitalist Physician1497106512
- Ammar Alzoubi, MDInternal Medicine Physician1598773152
Verify Karl E. Baum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 35816Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average hospitalist physician in 2024
308 Medicare Part D claims for 108 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Furosemide27 claims
- Atorvastatin Calcium21 claims
- Potassium Chloride18 claims
- Prednisone16 claims
- Fosinopril Sodium13 claims
- Metoprolol Tartrate13 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Aurora Medical Group, Inc.Milwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karl E. Baum among 894 hospitalist physician records in Wisconsin
Karl E. Baum, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated1993 · median 2011 among the 768 with a school on file
- Record last updated2024 · 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).
Hospitalist Physician providers in Wisconsin
There are 894 hospitalist physician records in Wisconsin.
All 894 in Wisconsin → Every provider in Oshkosh → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Abdulmajid AdamOshkosh, WI 549041528362258
- Hussein Alramini, M.D.Oshkosh, WI 549041497106512
- Ann-Marie Edwards, MDOshkosh, WI 549041619318508
- Raul Garcia, MDOshkosh, WI 549041487648499
- David Hanes, DOOshkosh, WI 549041982680286
- Angelea Heider, MDOshkosh, WI 549041477048437
- Sean Huff, DOOshkosh, WI 549041679954614
- Jeffrey Jones, MDOshkosh, WI 549041881749935
Common questions
What is Karl E. Baum, MD's NPI number?
Karl E. Baum, MD's National Provider Identifier (NPI) is 1497749402, issued on Sep 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Karl E. Baum, MD located?
The NPPES record lists a practice address at 855 N Westhaven Dr, Oshkosh, WI, 54904. Phone: (920) 303-8700. Providers update this record themselves, so call before visiting.
How can I verify Karl E. Baum, MD's license?
NPPES lists Wisconsin license number 35816, 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 Karl E. Baum, MD prescribe under Medicare Part D?
In 2024, Karl E. Baum, MD had 308 Medicare Part D claims for 108 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Karl E. Baum, MD's MIPS final score?
The 2023 MIPS final score is 77.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.