Sean William Marquis, MD - Medicare Emergency Medicine in Janesville, WI

Sean William Marquis, MD is a medicare enrolled "Emergency Medicine" physician in Janesville, Wisconsin. He graduated from medical school in 2009 and has 15 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Mercy Health System Corporation, Mercy Health System Corporation and his current practice location is 1000 Mineral Point Ave, Janesville, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (608) 756-6611.

Sean William Marquis is licensed to practice in Wisconsin (license number 46924-20) 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 1053554089.

Contact Information

Sean William Marquis, MD
1000 Mineral Point Ave,
Janesville, WI 53548-2940
(608) 756-6611
(608) 756-6177

Map and Direction




Physician's Profile

Full NameSean William Marquis
GenderMale
SpecialityEmergency Medicine
Experience15 Years
Location1000 Mineral Point Ave, Janesville, 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:
  • Sean William Marquis graduated from medical school in 2009
  NPI Data:
  • NPI Number: 1053554089
  • Provider Enumeration Date: 04/07/2009
  • Last Update Date: 06/10/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 5496921249
  • Enrollment ID: I20120622000151

Medical Identifiers

Medical identifiers for Sean William Marquis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1053554089NPI-NPPES
1053554089MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 35097788 (Ohio)Secondary
207P00000XEmergency Medicine 4301099517 (Michigan)Secondary
207P00000XEmergency Medicine 46924-20 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Walworth Hospital & Medical CenterLake geneva, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Health System Corporation7416860440475
Mercy Health System Corporation7416860440475

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. Sean William Marquis allows following entities to bill medicare on his behalf.
Entity NameMercy Health System Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598718603
PECOS PAC ID: 7416860440
Enrollment ID: O20031113000164
Entity NameThe Medical College Of Wisconsin Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699720086
PECOS PAC ID: 2668384371
Enrollment ID: O20031120000259

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. Sean William Marquis 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
Sean William Marquis, MD
1000 Mineral Point Ave,
Janesville, WI 53548-2940

Ph: (608) 756-6611
Sean William Marquis, MD
1000 Mineral Point Ave,
Janesville, WI 53548-2940

Ph: (608) 756-6611

Reviews and Comments


Emergency Medicine Doctors in Janesville, WI

Michael J. Hartmann, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1000 Mineral Point Ave, Janesville, WI 53548
Phone: 608-756-6111    Fax: 608-756-6177
Dr. Michael V Coogan, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1000 Mineral Point Ave, Janesville, WI 53548
Phone: 608-756-6000    
Dr. Karl A Nibbelink, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1000 Mineral Point Ave, Janesville, WI 53548
Phone: 608-756-6611    
Christopher M. Koenig, DO
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1000 Mineral Point Ave, Janesville, WI 53548
Phone: 608-756-6611    Fax: 608-756-6177
Dr. Martin Fedko,
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1000 Mineral Point Ave, Janesville, WI 53548
Phone: 608-756-6611    Fax: 608-756-6177
Stephen L Merrill, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 3524 E Milwaukee St, Janesville, WI 53546
Phone: 608-756-7100    Fax: 608-756-4700

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.