Karen Patricia Seiter, M.D.
Hematology & Oncology Physician · Hawthorne, NY
Karen Patricia Seiter, M.D. is a hematology & oncology physician with a practice address in Hawthorne, New York, and NPI 1265494124, issued on Apr 5, 2006. Check the license on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Karen Patricia Seiter
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 83187 CT
Self-reported in NPPES; status is on the state search - Practice location
- 19 Bradhurst Ave, Hawthorne, NY 10532
- Phone
- (914) 493-8375
- Enumerated
- Apr 5, 2006
- Record last updated
- Oct 10, 2025
- Fax
- (914) 347-1832
- Medicaid ID
- 01269112 NY
- Medicare enrollment
- Enrolled (PECOS I20251223000097); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 1985
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,163 in New York → Look up another NPI →
Also registered at 19 Bradhurst Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gifty Adjei-Dugbatey, FNPPrimary Care Nurse Practitioner1003635095
- Arlene Adler, PHDPsychologist1386631745
- Stephen Adler, MDNephrology Physician1164421020
- Chhaya Aggarwal-Gupta, MDAdvanced Heart Failure and Transplant Cardiology Physician1518124684
- Ingrid Allard, MDPediatrics Physician1336136027
- Robin Altman, MDPediatrics Physician1295736833
Verify Karen Patricia Seiter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the ProfessionsCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,085 Medicare Part D claims for 119 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims. 24 claims were for opioids.
Most prescribed
- Acyclovir115 claims
- Revlimid84 claims
- Jakafi52 claims
- Fluconazole46 claims
- Brukinsa37 claims
- Venclexta37 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $48,854.87
38 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Incyte Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Nuvance Health Medical Practice CT IncDanbury, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Patricia Seiter among 1,163 hematology & oncology physician records in New York
Karen Patricia Seiter, M.D. is one of 1,163 hematology & oncology physician records with a practice address in New York. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 53% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1985 · median 2002 among the 833 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in New York
There are 1,163 hematology & oncology physician records in New York.
All 1,163 in New York → Every provider in Hawthorne → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Madhura Hanmantgad, MDHawthorne, NY 105321871970517
- Bonnie Kiner-Strachan, MDHawthorne, NY 105321306916747
- Robert Lerner, MDHawthorne, NY 105321497778161
- Delong Liu, M.D., PH.D.Hawthorne, NY 105321538122932
- John Vaughn, M.D.Hawthorne, NY 105321649690884
- Leonardo Sirulnik, MD PHDIrvington, NY 105331104894518
- Radha Raghupathy, M.DLarchmont, NY 105381356509491
- Joseph Bottino, MDMount Kisco, NY 105491407883937
Common questions
What is Karen Patricia Seiter, M.D.'s NPI number?
Karen Patricia Seiter, M.D.'s National Provider Identifier (NPI) is 1265494124, issued on Apr 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Patricia Seiter, M.D. located?
The NPPES record lists a practice address at 19 Bradhurst Ave, Hawthorne, NY, 10532. Phone: (914) 493-8375. Providers update this record themselves, so call before visiting.
How can I verify Karen Patricia Seiter, M.D.'s license?
Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen Patricia Seiter, M.D. prescribe under Medicare Part D?
In 2024, Karen Patricia Seiter, M.D. had 1,085 Medicare Part D claims for 119 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.