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

Matthias Weiss, MD

Individual provider Hematology & Oncology Physician · NPI 1245336759

Matthias Weiss, MD is a Hematology/Oncology in LA Crosse, Wisconsin. Qualified in 1986, 40 years ago. Practices with Thedacare, Incorporated, a 654-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
40
Licensed in
WI
In the registry since
2006
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

700 W Ave S
LA Crosse, WI 54601-4783
Phone: (608) 785-0940
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1818 N Meade St, Appleton, WI 54911-3454 — (920) 735-7300

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 30093 (WI)

Record details

NPI number1245336759
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 15, 2006
Last updated in NPPESOctober 18, 2021
Certification dateOctober 18, 2021
Mailing address200 1st St Sw, Rochester, MN 55905-0002

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Thedacare, Incorporated — 654 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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