Kathleen M. Chaisson, M.D.
NPI 1932130259ActiveIndividual· Internal Medicine, Pulmonary Disease· Derby, CT
Internal Medicine, Pulmonary Disease (M.D.) with Griffin Faculty Physicians Inc and 1 other group, practicing in Derby, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $1,114,750 for 2,939 claims, against $102,835 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 4 companies reporting payments in 2025, $520.30 in all, mostly food and beverage. Lists Griffin Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1932130259 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 5, 2006 |
| Last updated in NPPES | May 14, 2026 |
| Certified by provider | May 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 042408 | 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 - Pulmonary Disease (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 361 |
|---|---|
| Services billed | 1,122 across 17 procedure codes |
| Paid by Medicare | $102,835 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,939 · 4,284 30-day fills |
|---|---|
| Patients | 382 |
| Total drug cost | $1,114,750 |
| Generic share | 53% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
| Telehealth | Offers telehealth |
Medical groups
- Griffin Faculty Physicians IncDerby, CT · 134 clinicians
- Pulmonary Specialties, P.C.Derby, CT · 3 clinicians
Hospital affiliations
- Griffin HospitalDerby, CT
- St Vincent's Medical CenterBridgeport, CT
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$520.30 · 26 payments from 4 companies
- 2024$412.98 · 28 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $285.48 | 22 |
| Jazz Pharmaceuticals Inc. | $199.98 | 2 |
| Mallinckrodt Hospital Products Inc. | $20.83 | 1 |
| Lilly USA, LLC | $14.01 | 1 |
What the 2025 payments were for
- Food and Beverage$320.32 · 24 payments
- Education$199.98 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Pulmonary Disease providers in Derby
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All Internal Medicine, Pulmonary Disease providers in Connecticut →