Matthias Weiss, MD - Medicare Hematology/oncology in La Crosse, WI

Matthias Weiss, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in La Crosse, Wisconsin. He graduated from medical school in 1986 and has 38 years of diverse experience with area of expertise as Hematology/oncology. He is a member of the group practice Thedacare Incorporated and his current practice location is 700 West Ave S, La Crosse, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (608) 785-0940.

Matthias Weiss is licensed to practice in Wisconsin (license number 30093) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1245336759.

Contact Information

Matthias Weiss, MD
700 West Ave S,
La Crosse, WI 54601-4783
(608) 785-0940
Not Available

Map and Direction




Physician's Profile

Full NameMatthias Weiss
GenderMale
SpecialityHematology/oncology
Experience38 Years
Location700 West Ave S, La Crosse, Wisconsin
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Matthias Weiss graduated from medical school in 1986
  NPI Data:
  • NPI Number: 1245336759
  • Provider Enumeration Date: 09/15/2006
  • Last Update Date: 10/18/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 1254466964
  • Enrollment ID: I20100623000197

Medical Identifiers

Medical identifiers for Matthias Weiss such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1245336759NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 30093 (Wisconsin)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Thedacare Incorporated1759294887493

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Matthias Weiss allows following entities to bill medicare on his behalf.
Entity NameThedacare Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376656959
PECOS PAC ID: 1759294887
Enrollment ID: O20031106000088

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Matthias Weiss is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Matthias Weiss, MD
200 1st St Sw,
Rochester, MN 55905-0002

Ph: (608) 785-0940
Matthias Weiss, MD
700 West Ave S,
La Crosse, WI 54601-4783

Ph: (608) 785-0940

Reviews and Comments


Internal Medicine Doctors in La Crosse, WI

Mary K Frohnauer, MD
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-775-2021    
Derek A Hupp,
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-782-7300    
Padmavathi Mali, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-782-7300    
Emily Catherine Dolan, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-782-7300    
Blake Donald Jordan, DO
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-782-7300    
Adie D Harbin Iii, MD
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-782-7300    
Gregory M Knorr, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-782-7300    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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