Willis John Rieker Jr, MD - Medicare in Beloit, WI

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Willis John Rieker Jr, MD is a medicare enrolled "Pathology - Cytopathology" physician in Beloit, Wisconsin. His current practice location is 1969 W Hart Rd, Beloit, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (608) 364-5131.

Willis John Rieker Jr is licensed to practice in Wisconsin (license number 35629-020) 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 1689714834.

Contact Information

Willis John Rieker Jr, MD
1969 W Hart Rd,
Beloit, WI 53511-2230
(608) 364-5131
(608) 364-3185

Map and Direction




Physician's Profile

Full NameWillis John Rieker Jr
GenderMale
Speciality
Experience Years
Location1969 W Hart Rd, Beloit, 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:
  • Willis John Rieker Jr attended and graduated from in
  NPI Data:
  • NPI Number: 1689714834
  • Provider Enumeration Date: 02/07/2007
  • Last Update Date: 09/11/2025
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for Willis John Rieker Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1689714834NPI-NPPES
32846400MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207ZC0500XPathology - Cytopathology 35629-020 (Wisconsin)Primary
207ZP0102XPathology - Anatomic Pathology & Clinical Pathology 35629-020 (Wisconsin)Secondary

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. Willis John Rieker Jr 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
Willis John Rieker Jr, MD
1969 W Hart Rd,
Beloit, WI 53511-2230

Ph: (608) 364-5131		Willis John Rieker Jr, MD
1969 W Hart Rd,
Beloit, WI 53511-2230

Ph: (608) 364-5131

Reviews and Comments


Pathology Doctors in Beloit, WI


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.