Dr Mark W Niedfeldt, MD - Medicare Family Medicine in Mequon, WI

Dr Mark W Niedfeldt, MD is a medicare enrolled "Family Medicine" physician in Mequon, Wisconsin. His current practice location is 10325 N Port Washington Rd Ste 150, Mequon, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (262) 643-4720.

Dr Mark W Niedfeldt is licensed to practice in Wisconsin (license number 35201) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1205887775.

Contact Information

Dr Mark W Niedfeldt, MD
10325 N Port Washington Rd Ste 150,
Mequon, WI 53092-5768
(262) 643-4720
(262) 643-4721

Map and Direction




Physician's Profile

Full NameDr Mark W Niedfeldt
GenderMale
SpecialityFamily Medicine
Location10325 N Port Washington Rd Ste 150, Mequon, Wisconsin
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1205887775
  • Provider Enumeration Date: 05/12/2006
  • Last Update Date: 09/24/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 7618941113
  • Enrollment ID: I20040820000961

Medical Identifiers

Medical identifiers for Dr Mark W Niedfeldt such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1205887775NPI-NPPES
32113600MedicaidWI
002000187COtherHUMANA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 35201 (Wisconsin)Primary

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 Mark W Niedfeldt allows following entities to bill medicare on his behalf.
Entity NameColab Physicians, Sc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902666035
PECOS PAC ID: 1052853561
Enrollment ID: O20240611003317

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 Mark W Niedfeldt 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 Mark W Niedfeldt, MD
10556 North Port Washington Road, Suite 101,
Mequon, WI 53092-5586

Ph: (262) 643-4720
Dr Mark W Niedfeldt, MD
10325 N Port Washington Rd Ste 150,
Mequon, WI 53092-5768

Ph: (262) 643-4720

Reviews and Comments


Family Medicine Doctors in Mequon, WI

Henry J Schnitzler Jr., MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 12800 N Port Washington Rd, Mequon, WI 53097
Phone: 262-243-9600    
Krista M Dyreson, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6425 W Mequon Rd, Mequon, WI 53092
Phone: 262-242-0051    
Shawn Patel, DO
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 12203 Corporate Pkwy, Mequon, WI 53092
Phone: 262-387-8200    
Jonathan Katz, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 6425 W Mequon Rd, Mequon, WI 53092
Phone: 262-242-0051    Fax: 262-236-8780
Zachary Singer,
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6425 W Mequon Rd, Mequon, WI 53092
Phone: 262-242-0051    Fax: 262-236-8780
Richard Lewis, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 11649 N Port Washington Rd Ste 114, Mequon, WI 53092
Phone: 262-235-3800    Fax: 262-236-9726

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.