Rosemary Nustas, - Medicare Gastroenterology in Cambridge, MA

Rosemary Nustas, is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Cambridge, Massachusetts. She graduated from medical school in 2012 and has 12 years of diverse experience with area of expertise as Gastroenterology. She is a member of the group practice Cambridge Public Health Commission and her current practice location is 1493 Cambridge St, Cambridge, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (617) 665-1634.

Rosemary Nustas is licensed to practice in Massachusetts (license number 286678) 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 1689094880.

Contact Information

Rosemary Nustas,
1493 Cambridge St,
Cambridge, MA 02139-1099
(617) 665-1634
Not Available

Map and Direction




Physician's Profile

Full NameRosemary Nustas
GenderFemale
SpecialityGastroenterology
Experience12 Years
Location1493 Cambridge St, Cambridge, 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:
  • Rosemary Nustas graduated from medical school in 2012
  NPI Data:
  • NPI Number: 1689094880
  • Provider Enumeration Date: 04/27/2014
  • Last Update Date: 11/05/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8224255864
  • Enrollment ID: I20220224002734

Medical Identifiers

Medical identifiers for Rosemary Nustas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1689094880NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 286678 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Cambridge Health AllianceCambridge, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Cambridge Public Health Commission8921910894549

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. Rosemary Nustas allows following entities to bill medicare on her behalf.
Entity NameCambridge Public Health Commission
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1932313228
PECOS PAC ID: 8921910894
Enrollment ID: O20050808000725

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. Rosemary Nustas 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
Rosemary Nustas,
1493 Cambridge St,
Cambridge, MA 02139-1099

Ph: (617) 665-1634
Rosemary Nustas,
1493 Cambridge St,
Cambridge, MA 02139-1099

Ph: (617) 665-1634

Reviews and Comments


Internal Medicine Doctors in Cambridge, MA

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Dr. Margaret Love Mclaughlin, M.D.
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Dr. Ayse A. Atasoylu, M.D., M.P.H.
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Dr. Alexandra Vania Chabrerie, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 330 Mount Auburn Street, Department Of Medicine, Cambridge, MA 02138
Phone: 617-492-3500    

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.