Doctor profile · Federal record
Dr. Matthias Weiss, MD
Hematology & Oncology Physician (CMS: Hematology/Oncology) · La Crosse, WI
- NPI 1245336759
- Accepts Medicare
- 40 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
700 West Ave S
La Crosse, WI 546014783
(608) 785-0940 - Additional location
-
1818 N Meade St, Suite W120
Appleton, WI 549113454
(920) 735-7300
fax (920) 735-7333 - Mailing address
-
200 1St St Sw
Rochester, MN 559050002
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- October 18, 2021
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Wisconsin #30093
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1245336759. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$249
Transactions
4
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Tempus Ai, INC | 4 | $248.96 |
By nature of payment
Frequently asked questions
What is Dr. Matthias Weiss's medical specialty?
Dr. Matthias Weiss practices Hematology & Oncology Physician in La Crosse, WI.
Where does Dr. Matthias Weiss practice?
Dr. Matthias Weiss practices at 700 West Ave S, La Crosse, WI 546014783. Office phone: 6087850940.
What is Dr. Matthias Weiss's NPI?
Dr. Matthias Weiss's National Provider Identifier (NPI) is 1245336759, issued by NPPES.
Does Dr. Matthias Weiss accept Medicare assignment?
Yes. Dr. Matthias Weiss accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.