Dr Benjamin J Duffy, DO - Medicare Internal Medicine in Neenah, WI

Dr Benjamin J Duffy, DO is a medicare enrolled "Internal Medicine - Obesity Medicine" physician in Neenah, Wisconsin. He graduated from medical school in 2003 and has 21 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Thedacare, Incorporated and his current practice location is 200 Theda Clark Medical Plz Ste 420, Neenah, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (920) 720-7211.

Dr Benjamin J Duffy is licensed to practice in Wisconsin (license number 48370-021) 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 1144210857.

Contact Information

Dr Benjamin J Duffy, DO
200 Theda Clark Medical Plz Ste 420,
Neenah, WI 54956-2771
(920) 720-7211
Not Available

Map and Direction




Physician's Profile

Full NameDr Benjamin J Duffy
GenderMale
SpecialityInternal Medicine
Experience21 Years
Location200 Theda Clark Medical Plz Ste 420, 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 Benjamin J Duffy graduated from medical school in 2003
  NPI Data:
  • NPI Number: 1144210857
  • Provider Enumeration Date: 10/25/2005
  • Last Update Date: 06/06/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 2961557772
  • Enrollment ID: I20090831000558

Medical Identifiers

Medical identifiers for Dr Benjamin J Duffy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144210857NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 48370-021 (Wisconsin)Secondary
208M00000XHospitalist 48370 (Wisconsin)Secondary
207RB0002XInternal Medicine - Obesity Medicine 48370-021 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Thedacare Regional Medical Center - Appleton IncAppleton, WIHospital
Thedacare Medical Center - New LondonNew london, WIHospital
Thedacare Regional Med Ctr - NeenahNeenah, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Thedacare, Incorporated1759294887509

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 Benjamin J Duffy 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 Benjamin J Duffy 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 Benjamin J Duffy, DO
3 Neenah Ctr,
Neenah, WI 54956-3070

Ph: (920) 720-7211
Dr Benjamin J Duffy, DO
200 Theda Clark Medical Plz Ste 420,
Neenah, WI 54956-2771

Ph: (920) 720-7211

Reviews and Comments


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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.