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Edit this profileAt a glance
- 226 Mill Hill Ave, 3Rd Floor, Bridgeport, CT 06610
About Dr. Dainiak
Based in Bridgeport, CT, Nicholas Dainiak, M.D. is listed in the NPI registry under hematology. Nicholas graduated from Loyola University of Chicago, Stritch School of Medicine in 1973. Nicholas is also listed as specializing in internal medicine. Medicare claims data shows Nicholas provided 88 services to 51 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more and new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more. NPI 1396713467 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (203) 384-3873
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
226 MILL HILL AVE 3RD FLOOR
Bridgeport, CT 06610
Conditions Commonly Evaluated or Treated
Within Hematology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Anemia
- Blood clots
- Breast cancer
- Colon cancer
- Iron-deficiency anemia
- Leukemia
- Lung cancer
- Lymphoma
- Prostate cancer
Anemia
- Folate Deficiency
Bleeding disorders
- Bleeding Disorders
- Frequent Unexplained Nosebleeds
- Heavy Period Bleeding From Bleeding Disorder
- Unexplained Bruising
Blood and immune disorders
- Cold Protein In Blood
- Mast Cell Activation Syndrome
Blood cancer
- Multiple Myeloma
- Pre-Myeloma Protein In Blood
- Waldenstrom Macroglobulinemia
Blood clots
- Blood Clot in Lung
- Blood Clots In Pregnancy
- Deep vein thrombosis
Bone marrow disorders
- Bone Marrow Scarring
- Myelodysplastic Syndrome
Clotting disorders
Inherited blood disorders
- Sickle Cell Trait
Iron disorders
- Hemochromatosis
- High Ferritin
- Low Ferritin
Lymph conditions
Lymph disorders
- Castleman Disease
Metabolic blood disorders
- Porphyria
Nutritional blood disorders
Organ conditions
Platelet disorders
- High Platelet Count
- Low Platelets
- Rare Blood Clotting Disease
Protein disorders
- Amyloidosis
Red blood cell disorders
- Cold-Triggered Blood Breakdown
- Hemolytic Anemia in Children
- Nighttime Red Blood Cell Breakdown
- Sickle cell disease
- Thalassemia
- Thick Blood
White blood cell disorders
- High Eosinophil Count
- High White Blood Cell Count
- Histamine Intolerance
- Low White Blood Cell Count
Procedures & services
Most searched procedures
- Blood transfusion
- Chemotherapy
- Immunotherapy
- Targeted therapy
Biopsy
- Bone Marrow Biopsy
Blood treatments
- Blood Exchange Transfusion
- Plasmapheresis
- Platelet Removal Procedure
- Therapeutic Blood Draw
- White Blood Cell Removal Procedure
Catheter care
- Chemo Port Flush And Maintenance
Cell therapy
- Donor Lymphocyte Infusion
Cellular therapy
- CAR-T Therapy
Consultation
- Bleeding Disorder Testing
- Second Opinion For Blood Disorders
Consultations
- Port Placement Consultation
- Pre-Surgery Bleeding Clearance
Diagnostic tests
- Clotting Inhibitor Mixing Study
- Complete Blood Count
- Factor Level Blood Test
- Folic Acid Blood Test
- G6PD Enzyme Test
- Iron Level Blood Test
Infusions
- Clotting Factor Replacement
- Iron Infusion
- IVIG Infusion
Injections
- Red Blood Cell Booster Shots
- White Blood Cell Booster Injection
Lab tests
- Blood Cancer Cell Marker Test
- Blood Clotting Tests
- Blood Smear Examination
- Coomb's Test
- Genetic Blood Clotting Test
- Hemoglobin Electrophoresis
- Myeloma Blood Protein Test
Medication management
- Blood Clot Management
- Iron Chelation Therapy
Monitoring
- Coumadin INR fingerstick test
Patient education
- Clotting Factor Self-Infusion Training
Procedures
- Apheresis for Children
- Bone Marrow Harvest
- Port Removal Procedure
Transfusion therapy
- Blood Transfusion Management
- Platelet Transfusion
Transplants
- Stem Cell Donor Matching
- Stem Cell Transplant
Treatments
- Desmopressin Treatment
- Sickle Cell Crisis Treatment
Procedures Most Often Billed to Medicare
88 services · 51 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
77 | Less often than most peers in Hematology |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
11 | Less often than most peers in Hematology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Loyola University of Chicago, Stritch School of Medicine 3
Other providers in the same specialty who trained at the same institution.
Class of 1973 at Loyola University of Chicago, Stritch School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Nicholas Dainiak?
Nicholas Dainiak is a hematology in Bridgeport, CT. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Nicholas Dainiak's address?
Nicholas Dainiak is listed at 226 Mill Hill Ave 3Rd Floor, Bridgeport, CT 06610. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Nicholas Dainiak?
The number on file is (203) 384-3873. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Nicholas Dainiak?
Nicholas Dainiak's National Provider Identifier is 1396713467. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Nicholas Dainiak train?
Nicholas Dainiak attended Loyola University of Chicago, Stritch School of Medicine, graduating in 1973. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Nicholas Dainiak have?
Nicholas Dainiak has 53 years experience. Calculated from a graduation year of 1973, reported in the CMS National Downloadable File.
CMS public data
What procedures does Nicholas Dainiak perform?
According to Medicare billing data, Nicholas Dainiak the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Nicholas Dainiak's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Nicholas Dainiak. If this is you, claiming it is free.
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