Krzysztof Jacek Misiukiewicz, MD
NPI 1427102490ActiveIndividual· Internal Medicine, Medical Oncology· New York, NY
Internal Medicine, Medical Oncology (MD) with Icahn School of Medicine at Mount Sinai, practicing in New York, New York. Their prescriptions cost Medicare Part D more than their services did: $858,573 for 156 claims, against $30,769 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 12 companies reporting payments in 2025, $91,797 in all, mostly speaking and faculty fees. Lists Mount Sinai Hospital as a hospital affiliation.
Overview
| NPI | 1427102490 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jan 23, 2007 |
| Last updated in NPPES | Aug 14, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 241717 | NY |
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 - Medical Oncology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 82 |
|---|---|
| Services billed | 262 across 7 procedure codes |
| Paid by Medicare | $30,769 |
Part D prescriptions in 2024
| Prescriptions (claims) | 156 · 178 30-day fills |
|---|---|
| Patients | 29 |
| Total drug cost | $858,573 |
| Generic share | 60% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Medical Oncology |
| Secondary specialties | Hematology |
| Telehealth | Offers telehealth |
Medical group
- Icahn School of Medicine at Mount SinaiNew York, NY · 2,843 clinicians
Hospital affiliation
- Mount Sinai HospitalNew York, NY
Industry payments (Open Payments)
- 2025$91,797 · 103 payments from 12 companies
- 2024$37,615 · 66 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $59,749 | 45 |
| Coherus Oncology, Inc. | $23,011 | 9 |
| Bayer Healthcare Pharmaceuticals Inc. | $7,527 | 14 |
| Fennec Pharmaceuticals, Inc. | $754.01 | 2 |
| Glaxosmithkline, LLC. | $185.67 | 9 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$76,003 · 14 payments
- Travel and Lodging$12,783 · 31 payments
- Food and Beverage$3,012 · 58 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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