James L Groskreutz, MD - Medicare Gastroenterology in La Crosse, WI

James L Groskreutz, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in La Crosse, Wisconsin. He went to University Of Minnesota Medical School and graduated in 1983 and has 41 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Gundersen Lutheran Medical Center Inc, Gundersen Clinic Ltd, Gundersen Regional Clinics, Llc, Gundersen Clinic Ltd, Gundersen Lutheran Medical Center Inc and his current practice location is 1836 South Ave, La Crosse, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (608) 782-7300.

James L Groskreutz is licensed to practice in Wisconsin (license number 40805) 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 1548265127.

Contact Information

James L Groskreutz, MD
1836 South Ave,
La Crosse, WI 54601-5429
(608) 782-7300
Not Available

Map and Direction




Physician's Profile

Full NameJames L Groskreutz
GenderMale
SpecialityGastroenterology
Experience41 Years
Location1836 South Ave, 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:
  • James L Groskreutz attended and graduated from University Of Minnesota Medical School in 1983
  NPI Data:
  • NPI Number: 1548265127
  • Provider Enumeration Date: 06/20/2005
  • Last Update Date: 09/02/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 9234184243
  • Enrollment ID: I20101020001437

Medical Identifiers

Medical identifiers for James L Groskreutz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1548265127NPI-NPPES
32544200MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology MD-44523 (Iowa)Secondary
207RG0100XInternal Medicine - Gastroenterology 29342 (Minnesota)Secondary
207RG0100XInternal Medicine - Gastroenterology 40805 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Gundersen Lutheran Medical CenterLa crosse, WIHospital
Gundersen Boscobel Area Hospital And ClinicsBoscobel, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gundersen Lutheran Medical Center Inc2163331414789
Gundersen Clinic Ltd9638082779325
Gundersen Regional Clinics, Llc882045091949
Gundersen Clinic Ltd9638082779325
Gundersen Lutheran Medical Center Inc2163331414789

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. James L Groskreutz allows following entities to bill medicare on his behalf.
Entity NameGundersen Clinic Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851343115
PECOS PAC ID: 9638082779
Enrollment ID: O20031106000139
Entity NameMemorial Hospital Of Boscobel
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760459846
PECOS PAC ID: 8325957673
Enrollment ID: O20040115000725
Entity NameTri-county Memorial Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124063573
PECOS PAC ID: 4587642418
Enrollment ID: O20040708000696
Entity NameGundersen Lutheran Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376593442
PECOS PAC ID: 2163331414
Enrollment ID: O20130619000254

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. James L Groskreutz 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
James L Groskreutz, MD
1836 South Ave,
La Crosse, WI 54601-5429

Ph: (608) 782-7300
James L Groskreutz, MD
1836 South Ave,
La Crosse, WI 54601-5429

Ph: (608) 782-7300

Reviews and Comments


Internal Medicine Doctors in La Crosse, WI

Mary K Frohnauer, MD
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Derek A Hupp,
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Emily Catherine Dolan, MD
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Practice Location: 1836 South Ave, La Crosse, WI 54601
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Adie D Harbin Iii, MD
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Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-782-7300    
Gregory M Knorr, MD
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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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.