Dr William C Guenther Jr, MD - Medicare in Appleton, WI

Dr William C Guenther Jr, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Appleton, Wisconsin. His current practice location is 3925 N Gateway Dr, Appleton, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (920) 749-1171.

Dr William C Guenther Jr is licensed to practice in Wisconsin (license number 29203) 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 1386789618.

Contact Information

Dr William C Guenther Jr, MD
3925 N Gateway Dr,
Appleton, WI 54913-7863
(920) 749-1171
Not Available

Map and Direction




Physician's Profile

Full NameDr William C Guenther Jr
GenderMale
Speciality
Experience Years
Location3925 N Gateway Dr, Appleton, 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:
  • Dr William C Guenther Jr attended and graduated from in
  NPI Data:
  • NPI Number: 1386789618
  • Provider Enumeration Date: 02/21/2007
  • Last Update Date: 01/10/2017
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for Dr William C Guenther Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1386789618NPI-NPPES
31396700MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 29203 (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. Dr William C Guenther 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
Dr William C Guenther Jr, MD
3232 N Ballard Rd, Suite 200,
Appleton, WI 54911-8804

Ph: (920) 749-9668
Dr William C Guenther Jr, MD
3925 N Gateway Dr,
Appleton, WI 54913-7863

Ph: (920) 749-1171

Reviews and Comments


Internal Medicine Doctors in Appleton, WI

Daniela C Constantinescu, MD
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Practice Location: 1501 S Madison St, Appleton, WI 54915
Phone: 920-730-4414    
Dirk Steinert, MD
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Practice Location: 3925 N Gateway Dr, Appleton, WI 54913
Phone: 920-830-6877    Fax: 920-993-5037
Mrs. Shannon Leah Schmidt,
Hematology & Oncology
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Practice Location: 2500 E Capitol Dr, Appleton, WI 54911
Phone: 920-364-3600    Fax: 920-364-3900
Dr. Sanjeevkumar Ashok Patel, M.D
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Medicare: Accepting Medicare Assignments
Practice Location: 2500 E Capitol Dr Ste 1700, Appleton, WI 54911
Phone: 920-734-4773    
Gail Mary Mcnutt, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 10 Tri Park Way, Appleton, WI 54914
Phone: 920-831-0070    Fax: 920-831-7936
Dong Bo Yu,
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1818 N Meade St, Appleton, WI 54911
Phone: 920-731-8900    Fax: 920-225-1414
Deborah A Ihde, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 2500 E Capitol Dr, Appleton, WI 54911
Phone: 920-731-5811    Fax: 920-738-6293

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.