Dr Thomas Keith Duncan, MD - Medicare Internal Medicine in Neenah, WI

Dr Thomas Keith Duncan, MD is a medicare enrolled "Internal Medicine" physician in Neenah, Wisconsin. He went to Northwestern University Feinberg Medical School and graduated in 1975 and has 49 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Cora Health Services, Inc., Thedacare Incorporated and his current practice location is 200 Theda Clark Medical Plz Ste 240, Neenah, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (920) 725-2070.

Dr Thomas Keith Duncan is licensed to practice in Wisconsin (license number 22196) 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 1588641039.

Contact Information

Dr Thomas Keith Duncan, MD
200 Theda Clark Medical Plz Ste 240,
Neenah, WI 54956-2790
(920) 725-2070
Not Available

Map and Direction




Physician's Profile

Full NameDr Thomas Keith Duncan
GenderMale
SpecialityInternal Medicine
Experience49 Years
Location200 Theda Clark Medical Plz Ste 240, Neenah, 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 Thomas Keith Duncan attended and graduated from Northwestern University Feinberg Medical School in 1975
  NPI Data:
  • NPI Number: 1588641039
  • Provider Enumeration Date: 12/27/2005
  • Last Update Date: 11/23/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 1355343666
  • Enrollment ID: I20070215000018

Medical Identifiers

Medical identifiers for Dr Thomas Keith Duncan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1588641039NPI-NPPES
711290049OtherWIMEDICARE PTAN
30252000MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 22196 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Thedacare At HomeAppleton, WIHome health agency
Thedacare At HomeAppleton, WIHospice
Thedacare Regional Med Ctr - NeenahNeenah, WIHospital
Thedacare Regional Medical Center - Appleton IncAppleton, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Cora Health Services, Inc.1759290992556
Thedacare Incorporated1759294887493

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. Dr Thomas Keith Duncan allows following entities to bill medicare on his behalf.
Entity NameThedacare Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376656959
PECOS PAC ID: 1759294887
Enrollment ID: O20031106000088

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 Thomas Keith Duncan 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 Thomas Keith Duncan, MD
Po Box 8003,
Appleton, WI 54912-8003

Ph: (920) 996-3298
Dr Thomas Keith Duncan, MD
200 Theda Clark Medical Plz Ste 240,
Neenah, WI 54956-2790

Ph: (920) 725-2070

Reviews and Comments


Internal Medicine Doctors in Neenah, WI

Kelsey Kienert, M.D.
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Phone: 920-720-1463    
Dr. Benjamin J Duffy, D.O.
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Practice Location: 200 Theda Clark Medical Plz Ste 420, Neenah, WI 54956
Phone: 920-720-7211    
William L Nelson, MD
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Phone: 920-727-4220    
Dr. Barbara L Lauderdale, MD
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Practice Location: 804 E Forest Ave, Neenah, WI 54956
Phone: 920-722-6692    
Taylor B Doberstein, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 200 Theda Clark Medical Plz Ste 240, Neenah, WI 54956
Phone: 920-831-5050    Fax: 920-727-4511
James R Burns, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 101 Main St, Neenah, WI 54956
Phone: 920-727-4220    
Kim R Riess-sagers, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 300 N Commercial St, Suite 200, Neenah, WI 54956
Phone: 920-886-0818    Fax: 920-886-0773

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.