Rosalyn Isam Marar, MD - Medicare Internal Medicine in Rochester, MN

Rosalyn Isam Marar, MD is a medicare enrolled "Internal Medicine" physician in Rochester, Minnesota. Her current practice location is 200 1st Street Sw, Rochester, Minnesota. You can reach out to her office (for appointments etc.) via phone at (507) 284-2511.

Rosalyn Isam Marar is licensed to practice in Nebraska (license number 8842) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1750907622.

Contact Information

Rosalyn Isam Marar, MD
200 1st Street Sw,
Rochester, MN 55905-0001
(507) 284-2511
Not Available

Map and Direction




Physician's Profile

Full NameRosalyn Isam Marar
GenderFemale
SpecialityInternal Medicine
Location200 1st Street Sw, Rochester, Minnesota
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1750907622
  • Provider Enumeration Date: 06/17/2020
  • Last Update Date: 10/25/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 5991123382
  • Enrollment ID: I20230523001330

Medical Identifiers

Medical identifiers for Rosalyn Isam Marar such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1750907622NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 73491 (Minnesota)Secondary
207R00000XInternal Medicine 8842 (Nebraska)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. Rosalyn Isam Marar allows following entities to bill medicare on her behalf.
Entity NameMayo Clinic
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922074434
PECOS PAC ID: 6507778255
Enrollment ID: O20031103000285

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. Rosalyn Isam Marar 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
Rosalyn Isam Marar, MD
200 1st St Sw,
Rochester, MN 55905-0001

Ph: (507) 284-2511
Rosalyn Isam Marar, MD
200 1st Street Sw,
Rochester, MN 55905-0001

Ph: (507) 284-2511

Reviews and Comments


Internal Medicine Doctors in Rochester, MN

Emily Leasure, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 200 1st St Sw, Rochester, MN 55905
Phone: 507-284-2511    
Jorge A Velosa, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 200 1st St Sw, Rochester, MN 55905
Phone: 507-284-2511    
Samuel Y. Han, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 200 1st St Sw, Rochester, MN 55905
Phone: 507-284-2511    
Michael Ruediger Mueller,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 200 1st St Sw, Rochester, MN 55905
Phone: 507-284-2511    
Mr. Karun Singh Badwal, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 200 1st St Sw, Rochester, MN 55905
Phone: 507-284-2511    
Michal Reid, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 200 1st St Sw, Rochester, MN 55905
Phone: 507-284-2511    
Mohammad Alhousani, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 200 1st St Sw, Rochester, MN 55905
Phone: 507-284-2511    

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.