Dr Thomas C Gniadek, MD - Medicare Endocrinology in Waterbury, CT

Dr Thomas C Gniadek, MD is a medicare enrolled "Internal Medicine" physician in Waterbury, Connecticut. He went to University Of Connecticut School Of Medicine and graduated in 1976 and has 48 years of diverse experience with area of expertise as Endocrinology. He is a member of the group practice Trinity Health Of New England Provider Network Organization Inc and his current practice location is 1389 W Main St, Suite 224, Waterbury, Connecticut. You can reach out to his office (for appointments etc.) via phone at (203) 755-7711.

Dr Thomas C Gniadek is licensed to practice in Connecticut (license number 19477) 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 1972591931.

Contact Information

Dr Thomas C Gniadek, MD
1389 W Main St, Suite 224,
Waterbury, CT 06708
(203) 755-7711
(203) 755-8996

Map and Direction




Physician's Profile

Full NameDr Thomas C Gniadek
GenderMale
SpecialityEndocrinology
Experience48 Years
Location1389 W Main St, Waterbury, 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:
  • Dr Thomas C Gniadek attended and graduated from University Of Connecticut School Of Medicine in 1976
  NPI Data:
  • NPI Number: 1972591931
  • Provider Enumeration Date: 10/12/2005
  • Last Update Date: 11/09/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8527251982
  • Enrollment ID: I20101019000419

Medical Identifiers

Medical identifiers for Dr Thomas C Gniadek such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972591931NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 19477 (Connecticut)Primary
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 19477 (Connecticut)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Saint Mary's HospitalWaterbury, CTHospital
Waterbury HospitalWaterbury, CTHospital
Danbury HospitalDanbury, CTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Trinity Health Of New England Provider Network Organization Inc0941113567613

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 Thomas C Gniadek allows following entities to bill medicare on his behalf.
Entity NameTrinity Health Of New England Provider Network Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003882812
PECOS PAC ID: 0941113567
Enrollment ID: O20031110000651

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 Thomas C Gniadek 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 Thomas C Gniadek, MD
1389 W Main St, Suite 224,
Waterbury, CT 06708-3104

Ph: (203) 755-7711
Dr Thomas C Gniadek, MD
1389 W Main St, Suite 224,
Waterbury, CT 06708

Ph: (203) 755-7711

Reviews and Comments


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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.