Frederick Rozenshteyn, MD - Medicare Gastroenterology in Stamford, CT

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Frederick Rozenshteyn, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Stamford, Connecticut. He went to Tufts University School Of Medicine and graduated in 2017 and has 9 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Stamford Health Medical Group Inc and his current practice location is 1351 Washington Blvd, Stamford, Connecticut. You can reach out to his office (for appointments etc.) via phone at (203) 276-8490.

Frederick Rozenshteyn is licensed to practice in Connecticut (license number 76935) 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 1609309558.

Contact Information

Frederick Rozenshteyn, MD
1351 Washington Blvd,
Stamford, CT 06902-2419
(203) 276-8490
Not Available

Map and Direction




Physician's Profile

Full NameFrederick Rozenshteyn
GenderMale
SpecialityGastroenterology
Experience9 Years
Location1351 Washington Blvd, Stamford, Connecticut
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:
  • Frederick Rozenshteyn attended and graduated from Tufts University School Of Medicine in 2017
  NPI Data:
  • NPI Number: 1609309558
  • Provider Enumeration Date: 04/07/2017
  • Last Update Date: 09/19/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0446596746
  • Enrollment ID: I20241022003969

Medical Identifiers

Medical identifiers for Frederick Rozenshteyn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1609309558NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 76935 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Stamford HospitalStamford, CTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Stamford Health Medical Group Inc6901099746442

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. Frederick Rozenshteyn allows following entities to bill medicare on his behalf.
Entity NameStamford Health Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154633980
PECOS PAC ID: 6901099746
Enrollment ID: O20101025000743

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. Frederick Rozenshteyn 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
Frederick Rozenshteyn, MD
1351 Washington Blvd,
Stamford, CT 06902-2419

Ph: (203) 276-8490		Frederick Rozenshteyn, MD
1351 Washington Blvd,
Stamford, CT 06902-2419

Ph: (203) 276-8490

Reviews and Comments


Internal Medicine Doctors in Stamford, CT

Elie Sader, M.D.
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Practice Location: 30 Myano Ln Ste 22, Stamford, CT 06902
Phone: 203-635-8780    
Jeanne M Hosinski, M.D.
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Practice Location: 3 Sweet Briar Rd, Stamford, CT 06905
Phone: 203-968-8101    
Dr. Santi J Neuberger, M.D.
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Practice Location: 1290 Summer St, Stamford, CT 06905
Phone: 203-324-9955    Fax: 203-324-0171
Karishma Bellara, PA
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Medicare: Not Enrolled in Medicare
Practice Location: 190 W Broad St, Stamford, CT 06902
Phone: 203-348-2437    Fax: 203-276-7243
Dr. Brian Barry Hennessy, MD
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Medicare: Medicare Enrolled
Practice Location: 90 Morgan St, Ste 202, Stamford, CT 06905
Phone: 203-348-2922    Fax: 203-358-8721
Dr. Andreas Bub, MD
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Practice Location: 1 Hospital Plz, Stamford, CT 06902
Phone: 203-276-7147    
Dr. Walter Michael Kobialka, MD
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Medicare: Medicare Enrolled
Practice Location: 1275 Summer St Ste 102, Stamford, CT 06905
Phone: 203-325-0764    Fax: 203-325-0865

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.