List of Oncologists in Illinois
Illinois has 1,560 oncologists in this dataset, last verified September 6, 2026. It ranks 6th of 46 states with 4.3% of the national total, between Pennsylvania (1,903) and Ohio (1,507).
Chicago is the largest city market we track, with 277 oncologists. That city holds only 18% of all oncologists in Illinois, so the market reaches well beyond its biggest cities.
Email reach in Illinois runs above the national rate: 506 oncologists (32.4%) include an email address, against 28.3% across the United States. 1,532 (98.2%) list a phone number, and 502 carry both.
81.5% of oncologists in Illinois have a website, in line with the national average of 79.4%. Only 288 lack a site, so pitch redesigns and SEO rather than first-time builds.
Among the 722 rated oncologists in Illinois, 70% hold a 5-star average, in line with the national figure of 71%. 41 are rated 1 to 2 stars (5.7% of rated businesses, in line with the national 5.8%), a natural shortlist for reputation management and review software.
Social Media Reach
1,067
901
948
704
YouTube
Have questions or need help choosing the right dataset? Contact us and we'll sort it out.
Sample Pack: 15 verified records
Test data quality before you buy
Complete Database
Risk-Free PurchaseAll 1,560+ verified records
$30
Save 50%
Need Specific Leads?
Custom database built to your exact target criteria.
Oncologists List in Illinois
Browse a random sample of 15 records — see the exact fields and data quality before you download.
| LOGO | Business Name | Address | City | State | Country | Phone | Website | Reviews | Rating | FB | IG | LI | YT | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Mark J. Ratain MD | Address | Chicago | Illinois | United States | Email | Phone | 0 | 0 | — | |||||
Nora Richard MD | Address | Rockford | Illinois | United States | Email | Phone | 1 | 2 | |||||||
 | Northwestern Medicine Oncology Huntley | Address | Huntley | Illinois | United States | Email | Phone | 0 | 0 | — | |||||
Radiation Oncology Consultants | Address | Barrington | Illinois | United States | Email | Phone | 0 | 0 | — | — | — | — | |||
Mark F. Kozloff MD | Address | Harvey | Illinois | United States | Email | Phone | 6 | 5 | — | — | — | — | |||
 | Keith I. Block, MD | Address | Skokie | Illinois | United States | Email | Phone | 5 | 3.4 | — | — | — | — | ||
 | Jonathan B. Strauss, MD | Address | Chicago | Illinois | United States | Email | Phone | 2 | 5 | — | |||||
Dr. Nancy J. Taft, MD | Address | Evergreen Park | Illinois | United States | Email | Phone | — | 0 | 0 | — | — | — | — | ||
 | Affiliated Oncologists - Tinley Park | Address | Tinley Park | Illinois | United States | Email | Phone | 3 | 5 | — | |||||
Jayanthi R. Ramadurai MD | Address | Oak Lawn | Illinois | United States | Email | Phone | 0 | 0 | |||||||
 | Anne R. McCall, MD | Address | Warrenville | Illinois | United States | Email | Phone | 0 | 0 | — | |||||
 | Mauna Pandya, MD | Address | Mokena | Illinois | United States | Email | Phone | 22 | 5 | — | |||||
 | Saint Francis Hospital - Cancer Care Evanston | Address | Evanston | Illinois | United States | Email | Phone | 0 | 0 | — | — | ||||
 | Cynthia Salazar APRN | Address | Spring Valley | Illinois | United States | Email | Phone | 2 | 5 | — | |||||
 | Hwan G Jeong M.D. | Address | Normal | Illinois | United States | Email | Phone | 6 | 4.7 | — | — | — | — |
This is a randomized preview — the full database contains 1,560 records with complete field coverage.
Get the full Oncologists database
1,560 verified records — emails, phones, social profiles and more. One-time payment, instant download.
What You Can Do with the List of Oncologists in Illinois
This list is built for teams that sell to oncologists: medical supply distributors, practice software vendors, billing services and healthcare staffing agencies. It covers 1,560 oncologists in Illinois, with the fields to call, email, segment and map them.
Who Sells to Oncologists in Illinois
Each of these buyers can work the 1,560 businesses in this list as a pipeline for a different product:
- Medical and dental supply distributors: Open accounts with the 1,560 oncologists in Illinois for consumables, instruments and equipment.
- Practice management and EHR software: Pitch scheduling, patient records and billing systems to independent practices.
- Medical billing and credentialing services: Offer to take claims, coding and payer enrollment off the front desk.
- Healthcare staffing agencies: Place nurses, medical assistants and front-office staff.
Phone, Facebook and Contact Form Outreach in Illinois
Start with the 502 records that list both a phone number and an email address, then widen out channel by channel:
- Cold calling (1,532): 98.2% of records include a phone number for call campaigns, appointment setting and follow-ups.
- Facebook messages (1,067): 68.4% have a Facebook page, a further channel when calls and emails go unanswered.
- Website contact forms (661): businesses with a contact page URL give you another way in when no email is listed.
- CRM import: CSV and Excel files load into HubSpot, Salesforce, Zoho or Pipedrive, with city, state and postal code columns for assigning leads to reps.
Prospect Segments for Agencies in Illinois
Filter the website, rating and social columns to pull the oncologists that fit a specific service before you pitch:
- No website listed (288): 18% of oncologists in Illinois have no website on record, a direct prospect list for web designers and local SEO agencies.
- Rated 1 to 2 stars (41): businesses with poor Google ratings, prospects for reputation management and review generation services.
Prioritize Cities Across Illinois
The 1,560 oncologists in Illinois are spread across 1 cities we track and many smaller towns, so rank areas before sending reps out:
- Beyond the big cities: 1,283 records (82%) sit outside the 1 cities with their own list, reachable by phone and email without travel.
- Postal code patches: records include postal codes, so each rep can get a compact patch with no overlapping accounts.
- Route planning: records include latitude and longitude, so you can map accounts and plan visit days around clusters.
Data Coverage for Oncologists in Illinois
1,560 records · verified September 6, 2026
- Phone numbers
- 1,532
- Email addresses
- 506
- Phone and email
- 502
- Websites
- 1,272
Google ratings· 722 rated (46%)
70% hold 5 stars
- 1-star rated
- 23
- 3.2% of rated
- 2-star rated
- 18
- 2.5% of rated
- 3-star rated
- 91
- 12.6% of rated
- 4-star rated
- 81
- 11.2% of rated
- 5-star rated
- 509
- 70.5% of rated
Social profiles:
- Facebook:1,067· 68.4%
- LinkedIn:948· 60.8%
- Instagram:901· 57.8%
- YouTube:704· 45.1%
- X (Twitter):566· 36.3%
Oncologists in Illinois are a mixed-channel, Facebook-heavy market: 98.2% list a phone number and 32.4% publish an email. Among 722 rated oncologists, 70% hold 5 stars, a spread heavily skewed to the top, so low ratings stand out.
Related Oncologists by Location
Browse datasets for Oncologists across nearby locations
Frequently asked questions about Oncologists in Illinois
Everything you need to know about our oncologists database for Illinois: data quality, coverage, freshness, pricing, and formats. Last updated September 6, 2026.
How many Oncologists are there in Illinois?
There are 1,560 oncologists in Illinois in our verified database, as of September 6, 2026.
This covers independent operators, regional chains, and enterprise-scale businesses, across every city in Illinois, for sales prospecting, competitive research, and territory planning.
How up to date is the Oncologists data for Illinois?
This dataset was last updated in September 6, 2026.
Business contact data decays at roughly 2–3% per month as businesses close, move, or change details, so we re-verify our most-purchased datasets on a rolling basis.
Every file is also run through email verification before delivery, and past buyers are offered discounted refreshed versions as updates ship.
What fields are included in the Oncologists database for Illinois?
Each record can include: business name, full address, phone number, email address, website URL, social profiles (LinkedIn, Facebook, Instagram, YouTube, X), review ratings, and category details, plus contact-page URLs where available.
Field coverage varies by record; the counts below and the free sample show you exactly what to expect before buying.
Where can I buy verified market intelligence data for Oncologists businesses in Illinois?
InfiniteLeadsHub provides verified market intelligence datasets for oncologists businesses in Illinois as a one-time purchase with no subscription.
Ideal for market research, sales planning, and business development.
How much does the Oncologists database for Illinois cost?
The complete oncologists leads database for Illinois costs $15 as a one-time payment.
You get instant access to all 1,560 records with no recurring fees, no per-record charges, and no seat limits.
It is a cost-effective alternative to subscription platforms that charge monthly for the same public business data.
Is this a cheaper alternative to subscription lead databases like ZoomInfo or Apollo?
Yes. For teams that need oncologists contacts in Illinois specifically, a one-time $15 file is usually far cheaper than subscription platforms, which typically charge thousands of dollars per year with contracts and per-seat pricing.
Subscriptions make sense for large sales teams needing continuous multi-industry access; a one-time targeted list makes sense when you know exactly which niche and geography you're selling into.
Can I preview a sample of the Oncologists data before buying?
Yes. A free sample dataset is available so you can evaluate data quality, field coverage, and format before purchasing.
The sample is a representative slice of the full Illinois oncologists database, including contact fields, social profiles, and ratings data.
How do I download the Oncologists list, and what file formats are available?
You get instant access after purchase. Files are delivered in CSV and Excel (XLSX) formats.
CSV and Excel import directly into CRMs like Salesforce, HubSpot, and Zoho and into any email platform.
How many Oncologists in Illinois have phone numbers?
1,532 oncologists in Illinois (98% of the database) include a phone number.
That makes the dataset effective for cold calling, telemarketing, and appointment setting campaigns.
How many Oncologists in Illinois have email addresses?
506 oncologists in Illinois (32%) include an email address.
Email remains one of the highest-ROI B2B outreach channels, making this subset ideal for cold email sequences, product announcements, and drip campaigns.
How many Oncologists in Illinois have both a phone number and an email address?
502 oncologists in Illinois have both a phone number and an email address.
Dual-contact records enable multi-channel outreach: combining calls with email follow-ups measurably improves response rates.
How many Oncologists in Illinois are active on social media?
Social profile coverage for oncologists in Illinois: 948 on LinkedIn, 1,067 on Facebook, 901 on Instagram, 704 on YouTube, 566 on X (Twitter).
Social presence signals digitally engaged businesses, which is useful for agencies pitching social media services, ad platforms building audiences, and vendors targeting digitally mature prospects.
How many Oncologists in Illinois have a website?
1,272 oncologists in Illinois (82%) have an active business website.
That is an indicator of digital maturity, and an ideal segment for SEO agencies, hosting providers, and SaaS platforms.
How many Oncologists in Illinois do not have a website?
288 oncologists in Illinois operate without a business website.
These are high-intent, overlooked prospects for web design agencies, local SEO providers, and Google Business optimization services.
What are the review ratings of Oncologists in Illinois?
Rating breakdown for oncologists in Illinois: 509 with a 5-star rating, 81 with a 4-star rating, 91 with a 3-star rating, 18 with a 2-star rating, 23 with a 1-star rating.
Top-rated businesses suit premium services and partnership proposals; lower-rated businesses are receptive prospects for reputation management, review tools, and operational software.
Can I get Oncologists data for other states or the entire US?
Yes. The national Oncologists database covers all 50 US states, and individual state and major-city lists are also available.
If you buy Illinois first, contact us and we'll credit your purchase toward the national upgrade.
Most multi-state buyers save money going national.
Is the Oncologists contact data in Illinois legal to use for B2B outreach?
Yes. All data is sourced exclusively from publicly available information: Google Business listings, company websites, social media profiles, and public business directories.
This is business contact information, not personal consumer data, making it appropriate for B2B prospecting.
We recommend following applicable regulations such as CAN-SPAM (US), CASL (Canada), and GDPR (EU-targeted campaigns) so your outreach remains fully compliant.