Jaroslaw P Siwik, MD - Medicare Internal Medicine in Portage, MI

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Jaroslaw P Siwik, MD is a medicare enrolled "Internal Medicine" physician in Portage, Michigan. He went to Wayne State University School Of Medicine and graduated in 1997 and has 29 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Bronson Methodist Hospital and his current practice location is 2600 W Centre Ave, Bronson Internal Medicine Associates, Portage, Michigan. You can reach out to his office (for appointments etc.) via phone at (269) 324-4141.

Jaroslaw P Siwik is licensed to practice in Michigan (license number 4301070284) 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 1043280522.

Contact Information

Jaroslaw P Siwik, MD
2600 W Centre Ave, Bronson Internal Medicine Associates,
Portage, MI 49024-4828
(269) 324-4141
(269) 324-2020

Map and Direction




Physician's Profile

Full NameJaroslaw P Siwik
GenderMale
SpecialityInternal Medicine
Experience29 Years
Location2600 W Centre Ave, Portage, Michigan
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:
  • Jaroslaw P Siwik attended and graduated from Wayne State University School Of Medicine in 1997
  NPI Data:
  • NPI Number: 1043280522
  • Provider Enumeration Date: 01/25/2006
  • Last Update Date: 11/27/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2163494188
  • Enrollment ID: I20040810001297

Medical Identifiers

Medical identifiers for Jaroslaw P Siwik such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1043280522NPI-NPPES
CA4396OtherMIRAILROAD MEDICARE
4616530MedicaidMI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 4301070284 (Michigan)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Bronson At Home Healthcare ServicesBattle creek , MIHome health agency
Elara CaringJackson, MIHome health agency
Mary Free Bed At Home, LlcGrand rapids, MIHome health agency
Bronson Methodist HospitalKalamazoo, MIHospital
Bronson Lakeview HospitalPaw paw, MIHospital
Bronson Battle Creek HospitalBattle creek, MIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Bronson Methodist Hospital0244148633721

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. Jaroslaw P Siwik allows following entities to bill medicare on his behalf.
Entity NameBronson Methodist Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417961137
PECOS PAC ID: 0244148633
Enrollment ID: O20031208000832

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. Jaroslaw P Siwik 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
Jaroslaw P Siwik, MD
2600 W Centre Ave,
Portage, MI 49024-4828

Ph: (269) 324-4141		Jaroslaw P Siwik, MD
2600 W Centre Ave, Bronson Internal Medicine Associates,
Portage, MI 49024-4828

Ph: (269) 324-4141

Reviews and Comments


Internal Medicine Doctors in Portage, MI

Dr. Sarah Anne Wasserman, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3304 Cooley Ct, Portage, MI 49024
Phone: 269-349-2266    Fax: 269-349-0792
Jeffrey M Coppinger, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2600 W Centre Ave, Portage, MI 49024
Phone: 269-324-4141    Fax: 269-324-2020
Dr. Deborah Esteves, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7895 Currier Dr, Portage, MI 49002
Phone: 269-324-8670    Fax: 269-321-7154
Todd J White, DO
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2600 W Centre Ave, Bronson Internal Medicine Associates, Portage, MI 49024
Phone: 269-324-4141    Fax: 269-324-2020
Alyssa Engle, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3300 W Centre Ave, Portage, MI 49024
Phone: 269-327-2211    
Madhu M. Batchu, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2600 W Centre Ave, Box 42, Portage, MI 49024
Phone: 269-324-4141    Fax: 269-324-2020
Dr. Shirani Damayanthi Wijay-samarasinha, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 5829 S Westnedge Ave, Portage, MI 49002
Phone: 269-343-4700    Fax: 269-343-3002

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.