Hematologists and Oncologists in New Hampshire
Data updated monthly · Last refresh October 2026
77 Hematology & Oncology providers practice in New Hampshire, including 37 (48%) offering telehealth. The largest concentration is in Lebanon. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
77providers
37telehealth
Lebanontop city
Hematology & Oncology by city in New Hampshire
Choose a city to see providers there.
Where Hematologists and Oncologists in New Hampshire practice
From CMS Medicare enrollment records covering 45 of the 77 providers listed here (58%). Providers who do not bill Medicare are not included in these figures.
4%solo or small practice (under 10 clinicians)
7%mid-size group (10 to 99)
89%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Hematologists and Oncologists | All clinicians in group | Main city |
| Mary Hitchcock Memorial Hospital | 25 | 1,269 | Lebanon |
| Dartmouth-Hitchcock Clinic | 19 | 1,445 | Lebanon |
| New Hampshire Oncology-Hematology PA | 6 | 14 | Concord |
| Elliot Professional Services | 5 | 429 | Manchester |
| Dana-Farber Cancer Institute, Inc.. | 3 | 671 | Londonderry |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Hematologists and Oncologists affiliated |
| Mary Hitchcock Memorial Hospital | Lebanon | Nonprofit | 3 of 5 | 32 |
| Elliot Hospital | Manchester | Nonprofit | 2 of 5 | 13 |
| Cheshire Medical Center | Keene | Nonprofit | 4 of 5 | 11 |
| Catholic Medical Center | Manchester | Nonprofit | 4 of 5 | 8 |
| Concord Hospital | Concord | Nonprofit | 3 of 5 | 7 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Hematology & Oncology providers in New Hampshire
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Matthew Sullivan, M.D.Claremont, NH · $35 in drug and device payments (2025) · Telehealth ·
(603) 542-6777 Dr. Charles Catcher, MDConcord, NH · No drug or device payments recorded (2025) ·
(603) 224-2556 Dr. Douglas Weckstein, MDConcord, NH · No drug or device payments recorded (2025) ·
(603) 314-6879 Dr. Frederick Briccetti, MDConcord, NH · No drug or device payments recorded (2025) ·
(603) 224-2556 Dr. Gina Divenuti, MDConcord, NH · $53 in drug and device payments (2025) · Telehealth ·
(603) 622-6484 Dr. Jeanna Walsh, MDConcord, NH · $102 in drug and device payments (2025) · Telehealth ·
(603) 224-2556 Dr. Josy Mathew, MBBS, MDConcord, NH · $329 in drug and device payments (2025) ·
(603) 622-6484 Dr. Meredith Selleck, MDConcord, NH · $53 in drug and device payments (2025) · Telehealth ·
(036) 226-4846 Dr. Michael Buff, MDConcord, NH · $238 in drug and device payments (2025) · Telehealth ·
(036) 226-4846 Dr. Cocav Rauwerdink, MDDerry, NH · No drug or device payments recorded (2025) · Telehealth ·
(603) 432-1500 Dr. Zachary Spigelman, MD Dr. Amy Bessnow, MDDover, NH · $2,792 in drug and device payments (2025) · Telehealth ·
(603) 740-2694 Dr. Archana Bhargava, MDDover, NH · $41 in drug and device payments (2025) · Telehealth ·
(603) 742-8787 Dr. Henry Sonneborn, MDDover, NH · No drug or device payments recorded (2025) ·
(603) 742-8787 Dr. Danny Sims, MDHooksett, NH · No drug or device payments recorded (2025) ·
(603) 622-6484 Dr. Peter Crow, MDHooksett, NH · $150 in drug and device payments (2025) · Telehealth ·
(603) 622-6484 Dr. Arvind Randhawa, M.D.Keene, NH · No drug or device payments recorded (2025) · Telehealth ·
(603) 354-5400 Dr. Jill Winslow, M.D.Keene, NH · No drug or device payments recorded (2025) ·
(603) 354-5454 Dr. Robert Pritchard, MDKeene, NH · No drug or device payments recorded (2025) ·
(603) 354-5466 Dr. Sonia Yu, MDKeene, NH · No drug or device payments recorded (2025) ·
(603) 354-5400 Dr. Steven Larmon, MDKeene, NH · No drug or device payments recorded (2025) ·
(603) 354-5454 Dr. Bhavina SharmaLebanon, NH · No drug or device payments recorded (2025) · Telehealth ·
(603) 650-5000 Dr. Christi Hayes, M.D.Lebanon, NH · No drug or device payments recorded (2025) · Telehealth ·
(603) 650-2967 Dr. Christos Papageorgiou, M.D., PHDLebanon, NH · $129 in drug and device payments (2025) ·
(603) 650-5000 Dr. Elizabeth Bengtson, MDLebanon, NH · No drug or device payments recorded (2025) · Telehealth ·
(603) 650-5529 Dr. Frederick Lansigan, M.D.Lebanon, NH · $2,279 in drug and device payments (2025) · Telehealth ·
(603) 650-5529 Dr. Frederick Tucker, M.D.Lebanon, NH · No drug or device payments recorded (2025) ·
(603) 650-7854 Dr. Gabriella Harmon, DOLebanon, NH · $134 in drug and device payments (2025) · Telehealth ·
(603) 650-5000 Dr. Garrett Wasp, M.D.Lebanon, NH · No drug or device payments recorded (2025) · Telehealth ·
(603) 650-5529 Dr. Gary Schwartz, MDLebanon, NH · No drug or device payments recorded (2025) ·
(603) 653-6181 Dr. Gregory Ripple, MDLebanon, NH · No drug or device payments recorded (2025) · Telehealth ·
(603) 650-6312 Dr. Heidi Kuznia, MDLebanon, NH · No drug or device payments recorded (2025) ·
(603) 650-5000 Dr. Ivy Riano Monsalve, MDLebanon, NH · $1,149 in drug and device payments (2025) · Telehealth ·
(508) 383-1572 Dr. Joerg Rathmann, MDLebanon, NH · No drug or device payments recorded (2025) · Telehealth ·
(603) 650-5000 Dr. John Hill, M.D.Lebanon, NH · $302 in drug and device payments (2025) ·
(603) 650-4628 Dr. J. Pipas, M.D.Lebanon, NH · No drug or device payments recorded (2025) ·
(603) 650-9474 Dr. Kathryn Hourdequin, MDLebanon, NH · No drug or device payments recorded (2025) · Telehealth ·
(603) 650-9474 Dr. Keisuke Shirai, MDLebanon, NH · $116 in drug and device payments (2025) · Telehealth ·
(603) 650-7854 Dr. Kenneth Meehan, MDLebanon, NH · $302 in drug and device payments (2025) · Telehealth ·
(603) 650-4628 Dr. Konstantin Dragnev, MDLebanon, NH · No drug or device payments recorded (2025) · Telehealth ·
(603) 650-6345 Dr. Marc Gautier, M.D.Lebanon, NH · No drug or device payments recorded (2025) ·
(603) 650-5529 Dr. Martha Lodyga, MDLebanon, NH · No drug or device payments recorded (2025) ·
(603) 650-5000 Dr. Michael Greene, MD,MSLebanon, NH · No drug or device payments recorded (2025) ·
(603) 650-5000 Dr. Monic Drescher, MDLebanon, NH · No drug or device payments recorded (2025) · Telehealth ·
(603) 650-6763 Dr. Parth Shah, M.DLebanon, NH · $7,296 in drug and device payments (2025) ·
(603) 508-8693 Dr. Raphael Lizcano, M.D.Lebanon, NH · $80 in drug and device payments (2025) · Telehealth ·
(603) 653-9500 Dr. Sergey Devitskiy, M.D.Lebanon, NH · No drug or device payments recorded (2025) · Telehealth ·
(603) 650-5534 Dr. Steven HardinLebanon, NH · No drug or device payments recorded (2025) ·
(603) 650-4628 Conditions Hematology & Oncology providers in New Hampshire commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Hematology & Oncology providers. Individual practices vary, so confirm with the provider before booking.
- Breast cancer
- Lung cancer
- Lymphoma
- Leukemia
- Anemia
- Blood disorders
Common questions
How many Hematology & Oncology providers are in New Hampshire?There are 77 Hematology & Oncology providers with active NPI records practicing in New Hampshire, according to federal NPPES data refreshed monthly.
Do Hematology & Oncology providers in New Hampshire offer telehealth?Yes. 37 of the 77 Hematology & Oncology providers in New Hampshire (about 48%) report offering telehealth services in CMS data.
Which cities in New Hampshire have the most Hematology & Oncology providers?Lebanon (31), Manchester (9), Concord (8) have the highest concentration of Hematology & Oncology providers in New Hampshire.
How many Hematology & Oncology providers in New Hampshire received drug or device company payments?33 of 77 Hematology & Oncology providers in New Hampshire (43%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Hematology & Oncology providers in New Hampshire treat?Hematology & Oncology providers commonly treat breast cancer, lung cancer, lymphoma, leukemia, anemia and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Hematologists and Oncologists in New Hampshire work in independent practices or large health systems?Among 45 Hematologists and Oncologists in New Hampshire enrolled in Medicare, 4% bill through a solo or small practice with fewer than 10 clinicians, 7% through a mid-size group of 10 to 99, and 89% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Hematologists and Oncologists in New Hampshire work at?According to CMS facility affiliation records, the New Hampshire hospitals where the most Hematologists and Oncologists hold privileges are Mary Hitchcock Memorial Hospital in Lebanon; Elliot Hospital in Manchester; Cheshire Medical Center in Keene.
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