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50 Years
experience
Compassionate Cancer & Blood Disease Care in New Hampshire
Since 1976, New Hampshire Oncology-Hematology has been New Hampshires largest community-based medical oncology specialty practice, dedicated to providing expert care for adults with cancer and blood-related diseases. Our team of over 100 staff members, including 9 board-certified oncologists and 9 advanced practice providers, prioritizes compassionate care, advanced treatments, and patient-centered support throughout every stage of the treatment journey. We serve patients across three locations in Manchester, Concord, and Londonderry, collaborating with hospitals, regional teaching institutions, and the Dana-Farber Cancer Institute to ensure comprehensive care. Our clinical research program, active since the 1980s, offers access to cutting-edge clinical trials, while our multidisciplinary approach integrates diagnostics, treatment planning, and supportive services.

We emphasize transparency and education, guiding patients through diagnosis, treatment options, and personalized care plans during dedicated first visits. Financial counseling and partnerships with national organizations help alleviate the economic burden of care, ensuring accessibility for all patients. Our commitment to excellence is rooted in decades of experience, continuous innovation, and a mission-driven focus on improving health outcomes for individuals and families impacted by cancer and blood disorders.
Services
Medical Oncology Hematology Clinical Trials Patient Support Chemotherapy
Details
  • Year established: 1976
Highlights and features
  • Board-certified oncologists and hematologists with decades of combined experience
  • Three convenient locations across New Hampshire with integrated hospital partnerships
  • Active clinical research program offering access to cutting-edge treatments
  • Personalized financial counseling and assistance programs for patients
  • Multidisciplinary care plans tailored to individual patient needs
Services
Medical Oncology
Medical oncology services focus on diagnosing and treating cancer using advanced therapies tailored to each patients specific diagnosis. Our board-certified oncologists develop personalized treatment plans that may include chemotherapy, targeted therapy, or participation in clinical trials. With over four decades of experience, our team prioritizes evidence-based care, ensuring patients receive the most effective treatments while addressing their physical and emotional well-being throughout the journey.
Hematology
Hematology services address blood-related diseases, including leukemia, anemia, and clotting disorders, through comprehensive diagnostic testing and treatment. Our specialists use advanced lab work, such as complete blood counts and bone marrow biopsies, to identify underlying conditions. Treatment plans are customized to manage chronic diseases or acute conditions, with a focus on patient education and long-term wellness, ensuring care aligns with individual health needs and medical history.
Clinical Trials
Our clinical research program offers access to innovative cancer treatments through phase I-III trials, evaluating new drugs and therapies. Patients may enroll in studies sponsored by national organizations or regional partners like the Dana-Farber Cancer Institute. Participation is voluntary and discussed with providers to assess eligibility, potential benefits, and risks. This program underscores our commitment to advancing oncology care while providing early access to groundbreaking treatments for eligible patients.
Patient Support
Patient support services include financial counseling, educational resources, and emotional guidance to help individuals navigate their treatment journey. Our team assists with insurance verification, copay applications, and connecting patients to community resources. We also provide care coordination between specialists and hospitals, ensuring seamless communication and continuity of care, which enhances the overall experience and helps patients focus on recovery.
Chemotherapy
Chemotherapy services are delivered by experienced oncology nurses and advanced providers in a supportive environment, with personalized education sessions before treatment begins. We explain potential side effects, management strategies, and what to expect during each infusion. Treatment regimens are carefully selected based on the latest clinical guidelines, and our team monitors patients closely to optimize outcomes. The goal is to deliver effective therapy while maintaining quality of life and minimizing discomfort.
People
Gina DiVenuti
Hematologist-Oncologist
Dr. DiVenuti specializes in hematology and oncology, providing care at Manchester and Concord offices. She completed her fellowship at New England Medical Center and earned medical honors at Brown University.
Jeanna Walsh
Hematologist-Oncologist
Dr. Walsh practices at Concord and Londonderry offices and serves as Medical Director of the Londonderry Dana-Farber campus. She completed her training at the University of Rochester and is active in clinical research.
Jonathan Pirruccello
Hematologist-Oncologist
Dr. Pirruccello joined NHOH in 2025 after a fellowship at Dartmouth Hitchcock Medical Center. He treats patients in Concord and Manchester and is board eligible in medical oncology.
Josy Mathew
Hematologist-Oncologist
Dr. Mathew is board certified in hematology, oncology, and internal medicine. He joined NHOH in 2022 after academic and clinical roles in Minnesota, treating patients in Concord and Manchester.
Meredith Selleck
Hematologist-Oncologist
Dr. Selleck has practiced at NHOH since 2003, treating patients in Manchester and Londonderry. She completed her training at Columbia Presbyterian Medical Center and New York Medical College.
Questions
What services do you offer for cancer and blood disease treatment?
We provide medical oncology, hematology, chemotherapy, and access to clinical trials, along with personalized care plans and supportive services.
How do I schedule my first appointment?
After a referral, our New Patient Coordinator will contact you to schedule an appointment and guide you through the registration process.
Does your practice offer financial assistance options?
Yes, we provide financial counseling and partner with national organizations to help patients access copay programs and grants.
Where are your locations?
We serve patients in Manchester at Elliot Hospital, Concord at Concord Hospital, and Londonderry at the Dana-Farber regional campus.
Reviews (1)
Nance Healey
Jan 05, 2019 Report
I have been under care since Oct 2017. Kind, caring Physician. RN staff in Treatment room are highly skilled and compassionate. Office Mgr very professional and helped me navigate Insurance road blocks. Very pleased with my care