Mark S Bostwick, MD - Medicare Internal Medicine in Port Washington, WI

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Mark S Bostwick, MD is a medicare enrolled "Internal Medicine" physician in Port Washington, Wisconsin. He went to Medical College Of Wisconsin and graduated in 1978 and has 46 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Aurora Advanced Healthcare Inc and his current practice location is 1777 W Grand Avenue, Port Washington, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (262) 284-3456.

Mark S Bostwick is licensed to practice in Wisconsin (license number 22296) 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 1487686614.

Contact Information

Mark S Bostwick, MD
1777 W Grand Avenue,
Port Washington, WI 53074
(262) 284-3456
(262) 284-4543

Map and Direction




Physician's Profile

Full NameMark S Bostwick
GenderMale
SpecialityInternal Medicine
Experience46 Years
Location1777 W Grand Avenue, 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 S Bostwick attended and graduated from Medical College Of Wisconsin in 1978
  NPI Data:
  • NPI Number: 1487686614
  • Provider Enumeration Date: 07/07/2006
  • Last Update Date: 11/24/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 9830113018
  • Enrollment ID: I20060116000412

Medical Identifiers

Medical identifiers for Mark S Bostwick such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1487686614NPI-NPPES
P00679658OtherWIRR MEDICARE
30397000MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 22296 (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 S Bostwick 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 S Bostwick 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 S Bostwick, MD
3003 W Good Hope Road,
Milwaukee, WI 53209

Ph: (414) 352-3100		Mark S Bostwick, MD
1777 W Grand Avenue,
Port Washington, WI 53074

Ph: (262) 284-3456

Reviews and Comments


Internal Medicine Doctors in Port Washington, WI

Kenneth F. Jensen Jr., M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1777 W Grand Ave, Port Washington, WI 53074
Phone: 262-284-3456    Fax: 262-284-4543
Erik Riley Jeanes, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1475 W Grand Ave, Port Washington, WI 53074
Phone: 262-268-5100    
Douglas B Mcmanus, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1777 W Grand Avenue, Port Washington, WI 53074
Phone: 262-284-3456    Fax: 262-284-4543

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.