Nicholas Dainiak, M.D.
NPI 1396713467ActiveIndividual· Internal Medicine· Bridgeport, CT
Internal Medicine (M.D.) in Bridgeport, Connecticut, trained at Loyola University of Chicago, Stritch School of Medicine (class of 1973). Their prescriptions cost Medicare Part D more than their services did: $145,767 for 123 claims, against $7,462 paid for services in 2024. Partner Therapeutics, Inc. reported $213,045 in payments in 2025, mostly consulting fees.
Overview
| NPI | 1396713467 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 14, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 017830 | CT |
| Internal Medicine, Hematology | 207RH0000X | 017830 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 91 across 3 procedure codes |
| Paid by Medicare | $7,462 |
Part D prescriptions in 2024
| Prescriptions (claims) | 123 · 210 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $145,767 |
| Generic share | 57% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 1973 |
| Medicare specialty | Hematology |
Medical group
- Hartford HospitalHartford, CT · 1,044 clinicians
Hospital affiliation
- Hartford HospitalHartford, CT
Industry payments (Open Payments)
- 2025$213,045 · 15 payments from 1 company
- 2024$83,000 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Partner Therapeutics, Inc. | $213,045 | 15 |
What the 2025 payments were for
- Consulting Fee$194,327 · 5 payments
- Travel and Lodging$18,718 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 146 internal medicine physicians in Bridgeport · All internal medicine physicians in Connecticut