Leonid Karkanitsa, MD
NPI 1669435087ActiveIndividual· Internal Medicine· Stratford, CT
Internal Medicine (MD) in Stratford, Connecticut, licensed in CT, with an NPI issued in April 2006. Their prescriptions cost Medicare Part D more than their services did: $688,787 for 8,431 claims, against $65,481 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 9 companies reporting payments in 2025, $772.51 in all, mostly food and beverage. Lists Bridgeport Hospital as a hospital affiliation.
Overview
| NPI | 1669435087 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 7, 2006 |
| Last updated in NPPES | Jul 24, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 043534 | 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 | 177 |
|---|---|
| Services billed | 798 across 19 procedure codes |
| Paid by Medicare | $65,481 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,431 · 10,428 30-day fills |
|---|---|
| Patients | 320 |
| Total drug cost | $688,787 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliation
- Bridgeport HospitalBridgeport, CT
Other facilities
- Constellation Home CareHospice · Norwalk, CT
- Hartford Healthcare at HomeHospice · East Hartford, CT
- Civita Care Center at West RiverNursing home · Milford, CT
- Lord Chamberlain Manor Nursing & Rehabilitation CeNursing home · Stratford, CT
- Lord Chamberlain Nursing & Rehabilitation CenterNursing home · Stratford, CT
Industry payments (Open Payments)
- 2025$772.51 · 31 payments from 9 companies
- 2024$983.11 · 35 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $374.65 | 18 |
| Lilly USA, LLC | $144.47 | 2 |
| Bayer Healthcare Pharmaceuticals Inc. | $95.37 | 4 |
| Pfizer Inc. | $39.82 | 2 |
| Novo Nordisk Inc | $28.71 | 1 |
What the 2025 payments were for
- Food and Beverage$772.51 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 23 internal medicine physicians in Stratford · All internal medicine physicians in Connecticut