Mark R Fitzsimmons, MD - Medicare Family Practice in Port Washington, WI

Mark R Fitzsimmons, MD is a medicare enrolled "Family Medicine" physician in Port Washington, Wisconsin. He went to Medical College Of Wisconsin and graduated in 1991 and has 33 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Aurora Advanced Healthcare Inc and his current practice location is 1475 W Grand Ave, Port Washington, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (262) 268-5100.

Mark R Fitzsimmons is licensed to practice in Wisconsin (license number 33627) 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 1639284706.

Contact Information

Mark R Fitzsimmons, MD
1475 W Grand Ave,
Port Washington, WI 53074
(262) 268-5100
(262) 268-5118

Map and Direction




Physician's Profile

Full NameMark R Fitzsimmons
GenderMale
SpecialityFamily Practice
Experience33 Years
Location1475 W Grand Ave, Port Washington, 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:
  • Mark R Fitzsimmons attended and graduated from Medical College Of Wisconsin in 1991
  NPI Data:
  • NPI Number: 1639284706
  • Provider Enumeration Date: 08/20/2006
  • Last Update Date: 11/18/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 1254486673
  • Enrollment ID: I20090908000263

Medical Identifiers

Medical identifiers for Mark R Fitzsimmons such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1639284706NPI-NPPES
31986200MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 33627 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Aurora At HomeMilwaukee, WIHome health agency
Aurora Medical Center - GraftonGrafton, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Aurora Advanced Healthcare Inc3375625833928

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. Mark R Fitzsimmons allows following entities to bill medicare on his behalf.
Entity NameAurora Advanced Healthcare Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265629133
PECOS PAC ID: 3375625833
Enrollment ID: O20080123000694

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. Mark R Fitzsimmons 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
Mark R Fitzsimmons, MD
3003 W Good Hope Rd,
Milwaukee, WI 53209-2042

Ph: (414) 352-3100
Mark R Fitzsimmons, MD
1475 W Grand Ave,
Port Washington, WI 53074

Ph: (262) 268-5100

Reviews and Comments


Family Medicine Doctors in Port Washington, WI

Stephanie M Maves, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1777 W Grand Ave, Port Washington, WI 53074
Phone: 262-284-3456    
Ms. Brooke Marie Lund, STUDENT
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1936 Parknoll Ln, Port Washington, WI 53074
Phone: 262-323-2962    
Adam E. Blackwell, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 115 Sweetwater Blvd, Port Washington, WI 53074
Phone: 920-476-6400    
Michael A Martella, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 115 Sweetwater Blvd, Port Washington Health Center, Port Washington, WI 53074
Phone: 920-476-6400    Fax: 262-725-0630
Scot A Wilfong, DO
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1475 W Grand Ave, Port Washington, WI 53074
Phone: 262-268-5100    Fax: 262-268-5118
Elizabeth Dzwonczyk,
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1475 W Grand Ave, Port Washington, WI 53074
Phone: 262-268-5100    
John P Bonavia, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1317 W Grand Ave, Port Washington, WI 53074
Phone: 262-268-6998    

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.