Karen Patricia Seiter, M.D.
NPI 1265494124ActiveIndividual· Internal Medicine, Hematology & Oncology· Hawthorne, NY
Internal Medicine, Hematology & Oncology (M.D.) in Hawthorne, New York, trained at New York Medical College (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $7,222,209 for 1,085 claims, against $134,033 paid for services in 2024. Incyte Corporation was the largest of 4 companies reporting payments in 2025, $37,233 in all, mostly speaking and faculty fees.
Overview
| NPI | 1265494124 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 5, 2006 |
| Last updated in NPPES | Oct 10, 2025 |
| Certified by provider | Oct 10, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 83187 | CT |
| Internal Medicine, Hematology | 207RH0000X | 83187 | CT |
| Internal Medicine, Medical Oncology | 207RX0202X | 83187 | 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 - Hematology/Oncology (CT); Practitioner - Hematology/Oncology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 210 |
|---|---|
| Services billed | 1,438 across 14 procedure codes |
| Paid by Medicare | $134,033 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,085 · 1,817 30-day fills |
|---|---|
| Patients | 119 |
| Total drug cost | $7,222,209 |
| Generic share | 57% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Nuvance Health Medical Practice CT IncDanbury, CT · 747 clinicians
Hospital affiliations
- Danbury HospitalDanbury, CT
- Westchester Medical CenterValhalla, NY
Industry payments (Open Payments)
- 2025$37,233 · 27 payments from 4 companies
- 2024$52,039 · 40 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Incyte Corporation | $26,504 | 20 |
| Novartis Pharmaceuticals Corporation | $10,451 | 5 |
| Beone Medicines USA, Inc. | $150.00 | 1 |
| Rigel Pharmaceuticals, Inc. | $127.61 | 1 |
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$21,578 · 6 payments
- Consulting Fee$9,775 · 3 payments
- Travel and Lodging$5,022 · 8 payments
- Food and Beverage$858.42 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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