Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Leon Besthoff Rosen, MD

Individual provider Interventional Cardiology Physician · NPI 1477661437

Leon Besthoff Rosen, MD is a Cardiovascular Disease (Cardiology) in Milwaukee, Wisconsin. Qualified in 1983, 43 years ago. Practices with Ascension Medical Group-Southeast Wisconsin Inc, a 555-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois and Wisconsin.

Years since qualifying
43
Licensed in
IL, WI
In the registry since
2006
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2801 W Kinnickinnic River Pkwy Ste 460
Milwaukee, WI 53215-3695
Phone: (414) 389-7388
Fax: (414) 389-9069
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2300 N Edward St Ste 2400, Decatur, IL 62526-4163 — (217) 876-2400

Specialties & licences

Interventional Cardiology Physician (primary) Taxonomy 207RI0011X · Licence 036157971 (IL)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 26467 (WI)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 036157971 (IL)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence 26467 (WI)
Nuclear Cardiology Physician Taxonomy 207UN0901X · Licence 26467 (WI)

Record details

NPI number1477661437
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 29, 2006
Last updated in NPPESAugust 8, 2025
Certification dateAugust 8, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOTHER
Graduated 1983 (43 years in practice)
Group practice Ascension Medical Group-Southeast Wisconsin Inc — 555 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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