Corinne D. Kalser, MD
NPI 1265405088ActiveIndividual· Hospitalist· Waterbury, CT
Hospitalist (MD) in Waterbury, Connecticut, licensed in CT, with an NPI issued in February 2006. Their prescriptions cost Medicare Part D more than their services did: $6,971 for 199 claims, against $2,859 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) reported $28.19 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1265405088 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 10, 2006 |
| Last updated in NPPES | Dec 15, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 039722 | CT |
| Internal Medicine | 207R00000X | 039722 | 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 - Internal Medicine (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 17 |
|---|---|
| Services billed | 62 across 10 procedure codes |
| Paid by Medicare | $2,859 |
Part D prescriptions in 2024
| Prescriptions (claims) | 199 · 234 30-day fills |
|---|---|
| Patients | 26 |
| Total drug cost | $6,971 |
| Generic share | 95% of claims |
Industry payments (Open Payments)
- 2025$28.19 · 1 payment from 1 company
- 2024$142.97 · 7 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $28.19 | 1 |
What the 2025 payments were for
- Food and Beverage$28.19 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 22 hospitalists in Waterbury · All hospitalists in Connecticut