Marisa F. Siebel
Experienced in Liposarcoma

Dr. Marisa F. Siebel

Oncology
Northwell Health
Northwell Health Cancer Institute At Huntington
270 Pulaski Road, Suite D, 
Greenlawn, NY 
On Staff At
Offers Telehealth
Experienced in Liposarcoma
Northwell Health
Northwell Health Cancer Institute At Huntington
270 Pulaski Road, Suite D, 
Greenlawn, NY 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Marisa Siebel is an Oncologist in Greenlawn, New York. Dr. Siebel is rated as an Experienced provider by MediFind in the treatment of Liposarcoma. Her top areas of expertise are Familial Colorectal Cancer, Colorectal Cancer, Merkel Cell Carcinoma, and Lynch Syndrome.

Her clinical research consists of co-authoring 2 peer reviewed articles and participating in 1 clinical trial. MediFind looks at clinical research from the past 15 years.

Graduate Institution
St Georges University School Of Medicine
Residency
Maimonides Medical Center
Specialties
Oncology
Licenses
Internal Medicine in NY
Board Certifications
American Board Of Internal Medicine/Medical Oncology
Fellowships
University of Vermont Medical Center
Hospital Affiliations
Huntington Hospital
Hofstra/Northwell School Of Medicine/Nursing
South Shore University Hospital
Peconic Bay Medical Center
Long Island Jewish Medical Center
Cancer Institute
Languages Spoken
English
Gender
Female

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
EmblemHealth
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE PART D
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 4 Less Insurance Carriers -

Locations

Northwell Health Cancer Institute at Huntington
270 Pulaski Road, Suite D, Greenlawn, NY 11740
Call: 631-427-6060

Additional Areas of Focus

Dr. Siebel has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Colorectal Cancer
Anal Cancer

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

1 Clinical Trials

Trial of Maintenance With Niraparib in Patients With Stage III, Stage IV or Platinum-sensitive Recurrent Uterine Serous Carcinoma
Trial of Maintenance With Niraparib in Patients With Stage III, Stage IV or Platinum-sensitive Recurrent Uterine Serous Carcinoma
Enrollment Status: Completed
Publish Date: August 19, 2025
Intervention Type: Drug
Study Drug: Niraparib
Study Phase: Phase 2

2 Total Publications

Maintenance with niraparib in patients with stage III, stage IV, chemo-naïve recurrent or platinum-sensitive recurrent uterine serous carcinoma: study protocol for a phase II clinical trial.
Maintenance with niraparib in patients with stage III, stage IV, chemo-naïve recurrent or platinum-sensitive recurrent uterine serous carcinoma: study protocol for a phase II clinical trial.
Journal: BMJ open
Published: June 05, 2025
View All 2 Publications
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Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Siebel's expertise for a condition
ConditionClose
    • Distinguished
    • Anal Cancer
      Dr. Siebel is
      Distinguished
      . Learn about Anal Cancer.
      See more Anal Cancer experts
    • Colorectal Cancer
      Dr. Siebel is
      Distinguished
      . Learn about Colorectal Cancer.
      See more Colorectal Cancer experts
    • Familial Colorectal Cancer
      Dr. Siebel is
      Distinguished
      . Learn about Familial Colorectal Cancer.
      See more Familial Colorectal Cancer experts
    • Lynch Syndrome
      Dr. Siebel is
      Distinguished
      . Learn about Lynch Syndrome.
      See more Lynch Syndrome experts
    • Merkel Cell Carcinoma
      Dr. Siebel is
      Distinguished
      . Learn about Merkel Cell Carcinoma.
      See more Merkel Cell Carcinoma experts
    • Nasopharyngeal Carcinoma
      Dr. Siebel is
      Distinguished
      . Learn about Nasopharyngeal Carcinoma.
      See more Nasopharyngeal Carcinoma experts
    • Advanced
    • Acinic Cell Carcinoma of Salivary Glands
      Dr. Siebel is
      Advanced
      . Learn about Acinic Cell Carcinoma of Salivary Glands.
      See more Acinic Cell Carcinoma of Salivary Glands experts
    • Adenoid Cystic Carcinoma
      Dr. Siebel is
      Advanced
      . Learn about Adenoid Cystic Carcinoma.
      See more Adenoid Cystic Carcinoma experts
    • Appendix Cancer
      Dr. Siebel is
      Advanced
      . Learn about Appendix Cancer.
      See more Appendix Cancer experts
    • Endometrial Cancer
      Dr. Siebel is
      Advanced
      . Learn about Endometrial Cancer.
      See more Endometrial Cancer experts
    • Familial Pancreatic Cancer
      Dr. Siebel is
      Advanced
      . Learn about Familial Pancreatic Cancer.
      See more Familial Pancreatic Cancer experts
    • Gastroesophageal Junction Cancer
      Dr. Siebel is
      Advanced
      . Learn about Gastroesophageal Junction Cancer.
      See more Gastroesophageal Junction Cancer experts
    View All 21 Advanced Conditions
    • Experienced
    • Adult Soft Tissue Sarcoma
      Dr. Siebel is
      Experienced
      . Learn about Adult Soft Tissue Sarcoma.
      See more Adult Soft Tissue Sarcoma experts
    • ALK-Positive Non-Small Cell Lung Cancer
      Dr. Siebel is
      Experienced
      . Learn about ALK-Positive Non-Small Cell Lung Cancer.
      See more ALK-Positive Non-Small Cell Lung Cancer experts
    • Alveolar Soft Part Sarcoma
      Dr. Siebel is
      Experienced
      . Learn about Alveolar Soft Part Sarcoma.
      See more Alveolar Soft Part Sarcoma experts
    • Ampullary Cancer
      Dr. Siebel is
      Experienced
      . Learn about Ampullary Cancer.
      See more Ampullary Cancer experts
    • Anaplastic Thyroid Cancer
      Dr. Siebel is
      Experienced
      . Learn about Anaplastic Thyroid Cancer.
      See more Anaplastic Thyroid Cancer experts
    • Angiomyoma
      Dr. Siebel is
      Experienced
      . Learn about Angiomyoma.
      See more Angiomyoma experts
    View All 69 Experienced Conditions
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