Nicholas Dainiak, MD - Medicare Hematology in Bridgeport, CT

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Nicholas Dainiak, MD is a medicare enrolled "Internal Medicine - Hematology" physician in Bridgeport, Connecticut. He went to Loyola University Of Chicago, Stritch School Of Medicine and graduated in 1973 and has 51 years of diverse experience with area of expertise as Hematology. He is a member of the group practice Hartford Hospital and his current practice location is 226 Mill Hill Ave, 3rd Floor, Bridgeport, Connecticut. You can reach out to his office (for appointments etc.) via phone at (203) 384-3873.

Nicholas Dainiak is licensed to practice in Connecticut (license number 017830) 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 1396713467.

Contact Information

Nicholas Dainiak, MD
226 Mill Hill Ave, 3rd Floor,
Bridgeport, CT 06610-2811
(203) 384-3873
(203) 384-3829

Map and Direction




Physician's Profile

Full NameNicholas Dainiak
GenderMale
SpecialityHematology
Experience51 Years
Location226 Mill Hill Ave, Bridgeport, 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:
  • Nicholas Dainiak attended and graduated from Loyola University Of Chicago, Stritch School Of Medicine in 1973
  NPI Data:
  • NPI Number: 1396713467
  • Provider Enumeration Date: 03/14/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 7214065762
  • Enrollment ID: I20100504000862

Medical Identifiers

Medical identifiers for Nicholas Dainiak such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1396713467NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 017830 (Connecticut)Primary
207RH0000XInternal Medicine - Hematology 017830 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Hartford HospitalHartford, CTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Hartford Hospital2567366016841

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. Nicholas Dainiak allows following entities to bill medicare on his behalf.
Entity NameHartford Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407806391
PECOS PAC ID: 2567366016
Enrollment ID: O20031125000700
Entity NameHartford Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770696643
PECOS PAC ID: 2567366016
Enrollment ID: O20031125000752
Entity NameWindham Community Memorial Hospital, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023191467
PECOS PAC ID: 2961309059
Enrollment ID: O20031217000231
Entity NameThe Hospital Of Central Connecticut At New Britain General And Bradley
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063461481
PECOS PAC ID: 6507776564
Enrollment ID: O20040115000497
Entity NameThe William W Backus Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467517235
PECOS PAC ID: 0749170645
Enrollment ID: O20040316000739

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. Nicholas Dainiak 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
Nicholas Dainiak, MD
Po Box 5246,
Bridgeport, CT 06610-0246

Ph: (203) 384-3873		Nicholas Dainiak, MD
226 Mill Hill Ave, 3rd Floor,
Bridgeport, CT 06610-2811

Ph: (203) 384-3873

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.

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