John J Hayes, MD - Medicare in Marshfield, WI

John J Hayes, MD is a medicare enrolled "Internal Medicine - Clinical Cardiac Electrophysiology" physician in Marshfield, Wisconsin. His current practice location is 1000 N Oak Ave, Marshfield, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (715) 387-5511.

John J Hayes is licensed to practice in Wisconsin (license number 32007) 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 1972613420.

Contact Information

John J Hayes, MD
1000 N Oak Ave,
Marshfield, WI 54449-5703
(715) 387-5511
Not Available

Map and Direction




Physician's Profile

Full NameJohn J Hayes
GenderMale
Speciality
Experience Years
Location1000 N Oak Ave, Marshfield, 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:
  • John J Hayes attended and graduated from in
  NPI Data:
  • NPI Number: 1972613420
  • Provider Enumeration Date: 08/30/2006
  • Last Update Date: 02/28/2011
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for John J Hayes such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972613420NPI-NPPES
31719500MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease 32007 (Wisconsin)Secondary
207RC0001XInternal Medicine - Clinical Cardiac Electrophysiology 32007 (Wisconsin)Primary

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. John J Hayes 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
John J Hayes, MD
1000 N Oak Ave,
Marshfield, WI 54449-5703

Ph: (715) 387-5511
John J Hayes, MD
1000 N Oak Ave,
Marshfield, WI 54449-5703

Ph: (715) 387-5511

Reviews and Comments


Internal Medicine Doctors in Marshfield, WI

Kenneth E Engelhart, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-5704    
Michael E Ryan, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-221-7822    
James Nash, DO
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-5511    
Maria Voronova, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-1713    
Matthew C. Keifer, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-5511    Fax: 715-387-5240
Alan K Mckenzie, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-5481    
Dr. Khushboo Naginbhai Patel, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-5511    Fax: 715-387-5240

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.