William J Cannon, MD - Medicare Internal Medicine in Fort Atkinson, WI

William J Cannon, MD is a medicare enrolled "Internal Medicine" physician in Fort Atkinson, Wisconsin. He went to Loyola University Of Chicago, Stritch School Of Medicine and graduated in 1988 and has 36 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Fort Healthcare Inc and his current practice location is 500 Mcmillen St, Fort Atkinson, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (920) 563-5571.

William J Cannon is licensed to practice in Wisconsin (license number 65437-20) 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 1912971243.

Contact Information

William J Cannon, MD
500 Mcmillen St,
Fort Atkinson, WI 53538-1233
(920) 563-5571
Not Available

Map and Direction




Physician's Profile

Full NameWilliam J Cannon
GenderMale
SpecialityInternal Medicine
Experience36 Years
Location500 Mcmillen St, Fort Atkinson, 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:
  • William J Cannon attended and graduated from Loyola University Of Chicago, Stritch School Of Medicine in 1988
  NPI Data:
  • NPI Number: 1912971243
  • Provider Enumeration Date: 02/14/2006
  • Last Update Date: 10/07/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 0749192953
  • Enrollment ID: I20160526000361

Medical Identifiers

Medical identifiers for William J Cannon such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1912971243NPI-NPPES
36081211MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 36081211 (Illinois)Secondary
207R00000XInternal Medicine 65437 (Wisconsin)Secondary
207R00000XInternal Medicine 65437-20 (Wisconsin)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Fort Healthcare Inc0840189718130

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. William J Cannon allows following entities to bill medicare on his behalf.
Entity NameFort Healthcare Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417993361
PECOS PAC ID: 0840189718
Enrollment ID: O20040319001411

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. William J Cannon 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
William J Cannon, MD
Po Box 249,
Fort Atkinson, WI 53538-0249

Ph: () -
William J Cannon, MD
500 Mcmillen St,
Fort Atkinson, WI 53538-1233

Ph: (920) 563-5571

Reviews and Comments


Internal Medicine Doctors in Fort Atkinson, WI

Jennifer Ann Winter, MD
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Practice Location: 1520 Madison Ave, Fort Atkinson, WI 53538
Phone: 920-563-5500    
Nathaniel J Fullerton, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 611 E Sherman Ave, Fort Atkinson, WI 53538
Phone: 920-568-5411    Fax: 920-568-4004
Dr. Ailleen R. Alquinto Anonuevo, M.D.
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Practice Location: 611 Sherman Ave E, Fort Atkinson, WI 53538
Phone: 920-568-5000    
Dane Schultz,
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Medicare: Accepting Medicare Assignments
Practice Location: 500 Mcmillen St, Fort Atkinson, WI 53538
Phone: 920-563-5571    
Mrs. Laura Koenig, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 500 Mcmillen St, Fort Atkinson, WI 53538
Phone: 920-563-5571    Fax: 920-563-7705
Dr. Jennifer L Klenske, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 611 E Sherman Ave, Fort Atkinson, WI 53538
Phone: 920-568-5000    Fax: 920-568-4004
Dr. Thomas Tackman, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 500 Mcmillen St, Fort Atkinson, WI 53538
Phone: 920-563-5571    Fax: 920-563-7705

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.