An oncology email list is a verified database of licensed medical oncologists, radiation oncologists, hematologists, surgical oncologists, and related cancer care professionals, built from conference and CME partnerships, state and national medical associations, healthcare publication networks, and B2B2C matching and verification programs. SparkDBi maintains 44,316 verified US oncology contacts across 14 subspecialties.
Trusted by Revenue and Data Teams at
SparkDBi maintains a verified oncology email list covering 44,316 medical oncologists, radiation oncologists, hematologists, surgical oncologists, gynecologic oncologists, and related cancer care professionals across the United States. Every contact is sourced from conference and CME partnerships, state and national professional associations, and healthcare publication networks, then validated through email inbox verification, phone validation, and physical address confirmation before delivery. The database refreshes monthly.
Oncology is one of the most commercially active areas in healthcare. Drug pipelines in immuno-oncology, targeted therapy, and cell therapy have created sustained demand for verified oncologist contact data from pharmaceutical companies, biotech firms, clinical research organizations, and medical device companies focused on radiation therapy and surgical oncology equipment.
Who Uses the Oncology Email List
Pharmaceutical companies with oncology pipelines represent the single largest buyer category. The oncology drug market is one of the most competitive in all of pharma, with multiple checkpoint inhibitors, CDK4/6 inhibitors, PARP inhibitors, and antibody-drug conjugates competing for the same prescriber attention. Sales teams, medical affairs, and market access functions all need direct contact data for oncologists by subspecialty and geography.
Biotech and immuno-oncology companies use the list for investigator identification and early adopter outreach. CAR-T and cell therapy programs require oncologists at specific centers with the right infrastructure. SparkDBi can filter by hospital affiliation to identify physicians at NCI-designated cancer centers and major academic medical centers where these programs run.
Clinical research organizations use the oncology list for site staff identification and investigator outreach. Oncology trials are among the most complex to staff, and having direct contact data for oncologists by subspecialty and site type reduces recruitment timelines significantly.
Medical device companies focused on radiation therapy equipment, surgical robotics, infusion systems, and oncology diagnostics use the list for outreach to radiation oncologists and surgical oncologists who make or influence equipment purchasing decisions.
Continuing medical education providers, oncology journals, and professional development platforms use the list for event promotion, subscription outreach, and CME content distribution.
Request Oncology Contact Data
Subspecialty filters, NCI center affiliations, sample records available
Oncology Subspecialties and Verified Contacts
The SparkDBi oncology database covers 14 subspecialties across the full oncology care team. Contacts are sorted by verified count.
| Subspecialty | Provider Type | Contacts |
|---|---|---|
| Hematologist & Oncologist | Physician | 9,103 |
| Oncologist | Physician | 7,897 |
| Radiation Oncologist | Physician | 5,218 |
| Medical Oncologist | Physician | 2,678 |
| Pediatrics - Hematologist & Oncologist | Physician | 1,758 |
| Oncology Services Director | Healthcare Professional | 1,483 |
| Surgical Oncologist | Physician | 1,038 |
| Gynecologic Oncologist | Physician | 905 |
| Dosimetry (Radiation Oncologist) | Physician | 844 |
| Registered Nurse - Oncologist | Nurse | 449 |
| Pharmacist - Oncologist | Pharmacists/Pharmacies | 198 |
| Clinical Nurse - Oncologist | Nurse | 114 |
| Pediatrics - Oncology Registered Nurse | Nurse | 46 |
| Pediatrics - Oncology Clinical Nurse | Nurse | 5 |
Cancer Types and Target Indications
Oncology contact data is most commonly requested by tumor type or therapeutic area rather than by subspecialty code alone. The primary cancer types that drive demand for SparkDBi oncology data are solid tumor oncology (lung, breast, colorectal, prostate, and melanoma), hematologic malignancies (lymphoma, leukemia, and multiple myeloma), and gynecologic cancers (ovarian and cervical).
Solid tumor oncology is the largest segment by prescriber volume. Non-small cell lung cancer (NSCLC) alone has driven more drug launches in the past decade than any other indication, with PD-1/PD-L1 checkpoint inhibitors, ALK inhibitors, EGFR inhibitors, and KRAS inhibitors all competing for a defined physician population. The SparkDBi oncology list covers medical oncologists who treat solid tumors across all sites.
Hematologic oncology covers blood cancers including diffuse large B-cell lymphoma (DLBCL), follicular lymphoma, CLL, CML, AML, and multiple myeloma. Hematologists and hematology-oncology specialists are a distinct prescriber population with different product needs, including CAR-T therapies, BTK inhibitors, BCL-2 inhibitors, and proteasome inhibitors.
Radiation oncology requires its own segment. Radiation oncologists drive decisions on linear accelerators, treatment planning systems, proton therapy adoption, and stereotactic body radiation therapy (SBRT) equipment. The SparkDBi database includes 5,218 verified radiation oncologist contacts.
Key Drugs and Devices in Oncology
The oncology drug categories most actively marketed to the SparkDBi oncology audience include checkpoint inhibitors (pembrolizumab, nivolumab, atezolizumab, durvalumab), CDK4/6 inhibitors for breast cancer (palbociclib, ribociclib, abemaciclib), PARP inhibitors for BRCA-mutated cancers (olaparib, niraparib, rucaparib), antibody-drug conjugates (trastuzumab deruxtecan, sacituzumab govitecan), and CAR-T cell therapies (axicabtagene ciloleucel, tisagenlecleucel, lisocabtagene maraleucel).
On the device side, the primary buyer categories are radiation therapy systems manufacturers (Varian, Elekta), surgical robotics companies for minimally invasive oncology procedures, infusion pump and PORT catheter companies, oncology diagnostic imaging vendors (PET-CT systems), and liquid biopsy and molecular diagnostics platforms that sell to oncology practices and cancer centers.
How SparkDBi Sources and Verifies HCP Data
SparkDBi builds its HCP contact database from multiple vetted channels. Primary sources include conference attendance and CME event participation records from healthcare education partners, member directories from state and national professional associations, subscriber and contributor lists from healthcare publication networks, and B2B2C data matching and verification partnerships.
Publicly available sources including CMS and NPPES records are used as a cross-reference and comparison tool only. They are not a primary data source. CMS and NPPES data is frequently stale or out of date for direct contact purposes. SparkDBi treats it as one reference point among many rather than a source of record.
Verification runs across three dimensions. Email inbox verification connects directly to the receiving mail server and confirms the specific mailbox accepts incoming messages, without sending a message. Phone validation confirms work phone numbers are active and matched to the provider record. Physical address validation covers both work practice addresses and home addresses, with records that fail validation removed and replaced in the next monthly refresh cycle.
NPI Taxonomy Codes for Oncology
CMS NPI taxonomy codes for reference. These are useful when specifying subspecialty requirements or independently verifying provider credentials.
| Taxonomy Code | Oncology Classification |
|---|---|
| 207RX0202X | Medical Oncology |
| 207RN0300X | Radiation Oncology |
| 207RH0000X | Hematology |
| 207RH0003X | Hematology and Oncology |
| 207VX0000X | Gynecologic Oncology |
| 2080H0100X | Pediatric Hematology and Oncology |
Practice Setting Breakdown
Roughly 65% of oncologists in the SparkDBi database practice in hospital-based or hospital-affiliated settings, including NCI-designated cancer centers, academic medical centers, and large community hospital oncology programs. The remaining 35% practice in independent oncology group practices, outpatient infusion centers, and freestanding radiation therapy facilities.
SparkDBi can filter by practice setting and by affiliation with NCI-designated comprehensive cancer centers, which is useful for pharma medical affairs teams targeting oncology opinion leaders and early adopters at academic sites.
Top 10 Cancer Centers (2026 World Rankings)
The leading cancer centers globally concentrate the highest volumes of oncologists, run the most active clinical trials, and set treatment protocols that spread across affiliated community practices. For pharmaceutical companies targeting investigator sites or opinion leaders, these institutions are the primary focus of medical affairs outreach programs. SparkDBi maintains verified contact data for oncologists affiliated with each institution below.
Rankings are drawn from the Newsweek World's Best Specialized Hospitals 2026 report, which surveys oncologists, hospital managers, and healthcare professionals across 25 or more countries.
| Rank | Cancer Center | Location |
|---|---|---|
| #1 | Memorial Sloan Kettering Cancer Center | New York City, US |
| #2 | MD Anderson Cancer Center | Houston, US |
| #3 | Samsung Medical Center | Seoul, KR |
| #4 | Asan Medical Center | Seoul, KR |
| #5 | Mayo Clinic - Rochester | Rochester, US |
| #6 | Gustave Roussy | Villejuif, FR |
| #7 | The Royal Marsden Hospital | London, UK |
| #8 | Seoul National University Hospital | Seoul, KR |
| #9 | The Princess Margaret Cancer Centre | Toronto, CA |
| #10 | The Johns Hopkins Hospital | Baltimore, US |
Geographic and International Coverage
The US oncology database covers all 50 states. Highest concentrations are in New York, California, Texas, Illinois, and Pennsylvania, reflecting both population density and the geographic clustering of major cancer centers in metropolitan areas.
International oncology data is available covering the UK (including Royal Marsden contacts), France (including Gustave Roussy contacts), Germany, Canada, Australia, and South Korea. Contact SparkDBi for current international oncology counts by country and center affiliation.
Deliverability and Inbox Placement
Oncologists at major cancer centers and academic medical systems operate under enterprise email environments with aggressive filtering. Proofpoint, Mimecast, and Microsoft Defender ATP are standard at institutions like MSK, MD Anderson, and Mayo Clinic. Campaigns targeting oncologists at these centers require clean sender authentication (SPF, DKIM, DMARC), strong sender reputation, and relevance signals in subject lines and preheaders.
Oncologists in private group practice settings use lighter filtering environments. SparkDBi flags enterprise hospital domains in the delivered dataset so buyers can plan separate send strategies by practice type.
Data Enrichment and Available Fields
For existing oncology contact lists, SparkDBi can append or verify: NPI numbers, subspecialty classifications, hospital and cancer center affiliations, email addresses, practice addresses, and license status. Match rates for oncology enrichment average 74% against the full database.
Available fields in the SparkDBi oncology database:
Compliance
The SparkDBi oncology email list contains no patient data. All records are professional contact information for licensed oncology providers. The database is HIPAA-aligned, CAN-SPAM compliant, and CCPA-aware. Business Associate Agreements are available for covered entities on request.