Irwin David Feintzeig, MD - Medicare Nephrology in Trumbull, CT

Irwin David Feintzeig, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Trumbull, Connecticut. He graduated from medical school in 1979 and has 45 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice Nephrology Associates Pc and his current practice location is 7 Cambridge Dr Ste 201, Trumbull, Connecticut. You can reach out to his office (for appointments etc.) via phone at (203) 335-0195.

Irwin David Feintzeig is licensed to practice in Connecticut (license number 026343) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1902805773.

Contact Information

Irwin David Feintzeig, MD
7 Cambridge Dr Ste 201,
Trumbull, CT 06611-4763
(203) 335-0195
(203) 335-7293

Map and Direction




Physician's Profile

Full NameIrwin David Feintzeig
GenderMale
SpecialityNephrology
Experience45 Years
Location7 Cambridge Dr Ste 201, Trumbull, Connecticut
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Irwin David Feintzeig graduated from medical school in 1979
  NPI Data:
  • NPI Number: 1902805773
  • Provider Enumeration Date: 07/14/2005
  • Last Update Date: 05/13/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 4284795865
  • Enrollment ID: I20100210000543

Medical Identifiers

Medical identifiers for Irwin David Feintzeig such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902805773NPI-NPPES
001263433MedicaidCT

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 026343 (Connecticut)Secondary
207RN0300XInternal Medicine - Nephrology 026343 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Milford DialysisMilford, CTDialysis facility
Bridgeport HospitalBridgeport, CTHospital
Griffin HospitalDerby, CTHospital
St. Vincent's Medical CenterBridgeport, CTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Nephrology Associates Pc498159062711

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. Irwin David Feintzeig allows following entities to bill medicare on his behalf.
Entity NameNephrology Associates Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609825223
PECOS PAC ID: 4981590627
Enrollment ID: O20040227000494

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. Irwin David Feintzeig 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
Irwin David Feintzeig, MD
7 Cambridge Dr Ste 201,
Trumbull, CT 06611-4763

Ph: (203) 335-0195
Irwin David Feintzeig, MD
7 Cambridge Dr Ste 201,
Trumbull, CT 06611-4763

Ph: (203) 335-0195

Reviews and Comments


Internal Medicine Doctors in Trumbull, CT

Dawn Lukose,
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Joseph A Evangelista, MD
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Dr. Molain Saintilus, M.D.
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Phone: 203-374-6162    Fax: 203-374-1549
Linda S Werner, MD
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Phone: 203-372-7200    Fax: 203-374-1473
Dr. William G. Hulcher, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 888 White Plains Rd, Suite 202, Trumbull, CT 06611
Phone: 203-459-9666    Fax: 203-459-9698

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.