Dr Marissa Castro Fernandez Kiemele, MD - Medicare Family Practice in Boston, MA

Dr Marissa Castro Fernandez Kiemele, MD is a medicare enrolled "Family Medicine" physician in Boston, Massachusetts. She went to University Of Alberta, Faculty Of Medicine and graduated in 1995 and has 29 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice The General Hospital Corporation and her current practice location is 50 Staniford St Fl 9, Boston, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (617) 724-6610.

Dr Marissa Castro Fernandez Kiemele is licensed to practice in New Hampshire (license number 18726) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1144297516.

Contact Information

Dr Marissa Castro Fernandez Kiemele, MD
50 Staniford St Fl 9,
Boston, MA 02114-2506
(617) 724-6610
(603) 929-1196

Map and Direction




Physician's Profile

Full NameDr Marissa Castro Fernandez Kiemele
GenderFemale
SpecialityFamily Practice
Experience29 Years
Location50 Staniford St Fl 9, Boston, Massachusetts
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Marissa Castro Fernandez Kiemele attended and graduated from University Of Alberta, Faculty Of Medicine in 1995
  NPI Data:
  • NPI Number: 1144297516
  • Provider Enumeration Date: 03/03/2006
  • Last Update Date: 02/26/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0547212300
  • Enrollment ID: I20230605001900

Medical Identifiers

Medical identifiers for Dr Marissa Castro Fernandez Kiemele such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144297516NPI-NPPES
3112129MedicaidNH

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 292453 (Massachusetts)Secondary
207Q00000XFamily Medicine 18726 (New Hampshire)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Massachusetts General HospitalBoston, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The General Hospital Corporation65078038061058

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 Marissa Castro Fernandez Kiemele allows following entities to bill medicare on her behalf.
Entity NameMassachusetts General Physicians Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801874573
PECOS PAC ID: 2466365820
Enrollment ID: O20031111000434
Entity NameHarbor Health Services Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881692366
PECOS PAC ID: 0345146213
Enrollment ID: O20040223000221
Entity NameThe General Hospital Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023049236
PECOS PAC ID: 6507803806
Enrollment ID: O20080313000351

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 Marissa Castro Fernandez Kiemele 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 Marissa Castro Fernandez Kiemele, MD
50 Staniford St Fl 9,
Boston, MA 02114-2506

Ph: (617) 724-6610
Dr Marissa Castro Fernandez Kiemele, MD
50 Staniford St Fl 9,
Boston, MA 02114-2506

Ph: (617) 724-6610

Reviews and Comments


Family Medicine Doctors in Boston, MA

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Shahnaz Rahman,
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Phone: 617-732-5500    
Dr. Amy Min He, MD
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Practice Location: 637 Washington St, Boston, MA 02124
Phone: 617-825-9660    

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.