Nnennaya Duke, DO
NPI 1992144190ActiveIndividual· Family Medicine· Waterbury, CT
Family Medicine (DO) with United Community and Family Services, Inc, practicing in Waterbury, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $234,658 for 2,838 claims, against $65.20 paid for services in 2024. Novo Nordisk Inc was the largest of 11 companies reporting payments in 2025, $411.81 in all, mostly food and beverage. Lists William W Backus Hospital as a hospital affiliation.
Overview
| NPI | 1992144190 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jun 20, 2013 |
| Last updated in NPPES | Jul 20, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 55380 | CT |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Family Practice (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 11 |
|---|---|
| Services billed | 13 across 2 procedure codes |
| Paid by Medicare | $65.20 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,838 · 4,408 30-day fills |
|---|---|
| Patients | 496 |
| Total drug cost | $234,658 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- United Community and Family Services, IncNorwich, CT · 73 clinicians
Hospital affiliation
- William W Backus HospitalNorwich, CT
Other facilities
- Hartford Healthcare at HomeHome health agency · East Hartford, CT
Industry payments (Open Payments)
- 2025$411.81 · 15 payments from 11 companies
- 2024$545.48 · 23 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $119.25 | 1 |
| Glaxosmithkline, LLC. | $46.40 | 2 |
| Pfizer Inc. | $45.18 | 2 |
| Gilead Sciences, Inc. | $43.90 | 2 |
| Abbvie Inc. | $36.52 | 2 |
What the 2025 payments were for
- Food and Beverage$411.81 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 family medicine physicians in Waterbury · All family medicine physicians in Connecticut