List of Oncologists in California
California has approximately 3,896 Oncologists as of May 18, 2026. The highest concentrations are in cities such as Los Angeles (353), San Francisco (290), San Diego (142), positioning California as a key regional market for city-level and statewide B2B campaigns.
California, contributing around 10.3% of all 37,818 Oncologists in United States, making it one of the largest and most important state-level markets for targeted outreach. Around 59.1% of Oncologists in California have email addresses, 94.7% have phone numbers, and 58.6% include both — with 62.6% also having a website.
Businesses in this dataset are well-represented on social media: 2,231 have Facebook pages, 1,707 are on Instagram, 1,890 have LinkedIn profiles, 1,962 use X (formerly Twitter), 1,401 maintain YouTube channels. This dataset helps target Oncologists across California efficiently.
| 3896 Number of Oncologists | |
| 2303 Email addresses | |
| 3688 Phone numbers | |
| 2437 With Websites | |
| 1890 LinkedIn Profiles |
| 2231 Facebook Profiles | |
| 1707 Instagram Handles | |
| 1962 X Handles | |
| 1401 YouTube Channels | |
| 2284 Phone and Email |
Have trouble, confusion, or just need help? Contact us, and we’ll sort it out!
Data updated on May 18, 2026
$ 39 $78 (Discount: 50% OFF)
Download sample list of Oncologists in California
Find new clients and close more deals with the world s best business leads provider. You can download Oncologists email and phone number lists for your sales teams. Here is a random sample of 20 records for you to look at the fields and the data that we provide.
| NAME | Address | City | State | Country | Phone | Website | Review Count | Review Scores | Google URL | Youtube | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lester Robertson |
| Savannah | Georgia | United States |
|
| - | 0 | 0 | - | - | - | - | |
Dr. Howard L. Ritter, MD |
| Toledo | Ohio | United States |
|
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| 0 | 0 | - | - | |||
Jean-Marie Stephan, MD |
| Chicago | Illinois | United States |
|
|
| 5 | 4.2 | - | ||||
Said Saleh, MD |
| Roselle | New Jersey | United States |
|
|
| 0 | 0 | - | - | - | ||
Gabor Varadi, MD |
| Philadelphia | Pennsylvania | United States |
|
|
| 0 | 0 | |||||
Carrie Stephens, PA |
| Boise | Idaho | United States |
|
|
| 0 | 0 | |||||
Janelle Wagner, NP |
| Lafayette | Colorado | United States |
|
|
| 0 | 0 | |||||
Midwestern Regional Medical: Neelam Rakhshanda MD |
| Zion | Illinois | United States |
|
|
| 3 | 3.7 | |||||
Sharon C Dutton, M.D. MPH |
| Sunnyvale | California | United States |
|
|
| 25 | 5 | |||||
YAZHINI VALLATHARASU |
| Oshkosh | Wisconsin | United States |
|
|
| 0 | 0 | - | - | - | - | |
Wang Jay MD |
| Fort Myers | Florida | United States |
|
| - | 0 | 0 | - | - | - | - | |
Ramji R Rajendran MD |
| Chicago | Illinois | United States |
|
|
| 0 | 0 | |||||
Benjamin J Moeller, MD |
| Concord | North Carolina | United States |
|
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| 2 | 5 | |||||
Matthew Kulke, MD |
| Boston | Massachusetts | United States |
|
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| 0 | 0 | |||||
Arden M. Morris |
| Palo Alto | California | United States |
|
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| 0 | 0 | |||||
Prachi Jain, MD |
| Henderson | Kentucky | United States |
|
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| 0 | 0 | - | ||||
Angela Pennisi, MD |
| Fairfax | Virginia | United States |
|
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| 3 | 3.7 | |||||
Tara Seery |
| Costa Mesa | California | United States |
|
| - | 0 | 0 | - | - | - | - | |
Donald M Birch PC |
| Rochester Hills | Michigan | United States |
|
| - | 0 | 0 | - | - | - | - | |
Gregory A. Masters, MD, FACP |
| Newark | Delaware | United States |
|
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| 22 | 4.8 | - | - | - | - |
Address
Email
Phone
Website
How many Oncologists are there in the California?
Oncologists in the California
Last updated: May 18, 2026
Approximately 59.1% of Oncologists in California have email contacts, while 94.7% have phone numbers, enabling targeted state-level B2B campaigns.
Data last updated May 18, 2026
94.7%
3,688 Oncologists in California with Phone Number
59.1%
2,303 Oncologists in California with Email Address
58.6%
2,284 Oncologists in California with Phone and Email
Distribution by Location
Number of Oncologists across different territories
The Oncologists market in California is highly concentrated in key cities such as Los Angeles (9.1%), San Francisco (7.4%), San Diego (3.6%), reflecting where the largest pools of potential clients and partners are located.
City | Oncologists | % of Total |
|---|---|---|
| Los Angeles | 353 | 9.1% |
| San Francisco | 290 | 7.4% |
| San Diego | 142 | 3.6% |
| Palo Alto | 134 | 3.4% |
| Sacramento | 134 | 3.4% |
| Duarte | 110 | 2.8% |
| La Jolla | 100 | 2.6% |
| Santa Monica | 72 | 1.8% |
| Orange | 70 | 1.8% |
| Fresno | 68 | 1.7% |
| Walnut Creek | 61 | 1.6% |
| Torrance | 60 | 1.5% |
Long Beach | 53 | 1.4% |
Anaheim | 50 | 1.3% |
Downey | 50 | 1.3% |
These figures highlight that Oncologists businesses are concentrated in economically active cities, making them prime targets for large-scale outreach campaigns.
How to Use the List of Oncologists in California
Explore various use cases for leveraging our contact database.
Territory Sales & Regional Prospecting
Phone coverage across California is solid — 94.7% of oncologists have phone numbers in this dataset. Your team can start calling California-based prospects immediately, without spending time sourcing or validating contacts first.
Statewide Email Campaigns
59.1% of oncologists in California have an email address on record. That's enough coverage to run full-state email sequences — from initial outreach to follow-up — hitting every major market and regional hub in a single campaign.
Multi-Channel Outreach Across California
58.6% of oncologists in California have both phone and email on record. Rather than running separate lists per channel, your team can coordinate calls, emails, and follow-ups against the same contacts from one dataset.
Regional Ad Targeting
62.6% of oncologists in California have a listed website — a strong signal of digital presence. Use those records to build lookalike audiences or upload the full list as a custom audience on Facebook, Google, or LinkedIn for precise, state-level ad targeting.
Pitching Services to California Businesses
0.0% of oncologists in California are rated 4 stars or higher by real customers — a prime segment for reputation management tools, review platforms, and any service that helps businesses maintain or grow their online presence statewide.
With over 1 in 10 Oncologists businesses nationwide located here, California offers unmatched depth for multi-city campaigns and high-volume outreach pipelines.
Top Cities in California
List of Oncologists in California with Social Media Accounts
57.3% on Facebook — making this state an ideal market for platform-specific outreach at regional scale
Explore Related Oncologists by Location
Around 62.6% of Oncologists in California have an active website, making this state an ideal target for regional digital marketing and website-driven campaigns.
Data last updated May 18, 2026
62.6%
2,437 Oncologists in California that have a website
37.4%
1,459 Oncologists in California that do not have a website
Download sales qualified leads of Oncologists in the California
Download this data in CSV, Esri Shapefile, Excel, GeoJSON, or KML (Google Earth) file formats.
Frequently Asked Questions
Answers of the most common questions about our dataset
How many Oncologists are there in California?
There are 3,896 Oncologists in California as of the latest update. This makes California an active market for B2B outreach and lead generation in the Oncologists industry.
How many Oncologists in California have email addresses?
2,303 Oncologists in California have verified email addresses — giving you a strong foundation for direct email outreach and drip campaigns.
How many Oncologists in California have phone numbers?
3,688 Oncologists in California include phone numbers. Of those, 2,284 also have email addresses, making them ideal for multi-channel outreach.
Which cities in California have the most Oncologists businesses?
The top cities by Oncologists count are Los Angeles (353), San Francisco (290), San Diego (142). These markets represent the highest concentration of prospects and are strong targets for priority outreach and regional campaign planning.
Is this dataset suitable for statewide outreach to Oncologists in California?
Absolutely. The dataset covers 3,896 Oncologists businesses across California, giving you full statewide coverage for email, phone, and digital campaigns without geographic gaps.
What data fields are included for each Oncologists in California?
Each record typically includes business name, address, phone number, email, website, social media handles (Facebook, Instagram, LinkedIn, X, YouTube), and customer ratings where available.
How can I access the complete Oncologists list for California?
You can purchase and instantly download the full dataset from this page. A free sample is also available so you can review the data quality and structure before buying.
Still have questions? Feel free to reach out to our support team
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