Agnieszka E. Grochowalska, M.D.
NPI 1144496209ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Trumbull, CT
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) with Endocrine Assoc of CT LLC, practicing in Trumbull, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $947,802 for 2,557 claims, against $172,972 paid for services in 2024. Ascendis Pharma Endocrinology Inc was the largest of 8 companies reporting payments in 2025, $358.99 in all, mostly food and beverage. Lists Lawrence & Memorial Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1144496209 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 7, 2008 |
| Last updated in NPPES | Apr 22, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 050146 | 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 - Endocrinology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 363 |
|---|---|
| Services billed | 6,780 across 15 procedure codes |
| Paid by Medicare | $172,972 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,557 · 6,593 30-day fills |
|---|---|
| Patients | 480 |
| Total drug cost | $947,802 |
| Generic share | 45% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Endocrine Assoc of CT LLCHamden, CT · 10 clinicians
Hospital affiliations
- Lawrence & Memorial HospitalNew London, CT
- Middlesex HospitalMiddletown, CT
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$358.99 · 11 payments from 8 companies
- 2024$490.51 · 18 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ascendis Pharma Endocrinology Inc | $93.82 | 1 |
| Novo Nordisk Inc | $91.08 | 3 |
| Abbvie Inc. | $39.00 | 2 |
| Bayer Healthcare Pharmaceuticals Inc. | $29.66 | 1 |
| Amgen Inc. | $29.45 | 1 |
What the 2025 payments were for
- Food and Beverage$358.99 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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