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21st Century Oncology Employee Directory

Medical PracticesFlorida, United States501-1000 Employees

21st Century Oncology has about 935 employees, nearly all of them in North America. Healthcare Services and Accounting make up over half of the profiles with a known department. 21st Century Oncology's workforce spans 17 departments. 21st Century Oncology's workforce fell 32% between July 2025 and July 2026.

Find 21st Century Oncology employees' phone numbers or email addresses

21st Century Oncology Global Highlights

Location
Employees

North America
1.2K

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  • United States Of America
    1.2K
  • Costa Rica
    1

South America
6

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  • Argentina
    6

Asia
5

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  • Russian Federation
    1
  • Philippines
    1
  • Uzbekistan
    1
  • Iran
    1
  • Pakistan
    1

Europe
4

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  • United Kingdom Of Great Britain And Northern Ireland
    4

21st Century Oncology's Leadership

  • Chief Executive Officer at 21st Century Oncology
    L. B.
    Chief Executive Officer
    Mobile Phone
  • Chief Radiation Therapist at 21st Century Oncology
    K. C.
    Chief Radiation Therapist
    Mobile Phone
  • Chief Radiation Therapist And Regional Technical Manager For The Florida Panhandle And Alabama at 21st Century Oncology
    R. L. J.
    Chief Radiation Therapist And Regional Technical Manager For The Florida Panhandle And Alabama
    Mobile Phone
  • Chief Medical Dosimetrist at 21st Century Oncology
    C. B.
    Chief Medical Dosimetrist
    Mobile Phone
  • President at 21st Century Oncology
    D. C.
    President
    Mobile Phone
  • President at 21st Century Oncology
    R. D.
    President
    Mobile Phone
  • Owner at 21st Century Oncology
    K. H.
    Owner
    Mobile Phone
  • Owner at 21st Century Oncology
    M. A.
    Owner
    Mobile Phone

21st Century Oncology Employee Metrics

100%
50%
0%
2026
2025
  • Healthcare Services
  • Administrative
  • Finance
  • Research
  • Accounting
  • Other
  • Information Technology
  • Engineering
  • Community & Social Services

Healthcare Services is the largest department at 41% of profiles with a known department, down from 46% in July 2025, followed by Accounting (15%, up from 3%) and Community & Social Services (14%, up from 0%).

Contact profiles from 21st Century Oncology

Name
Title
Contact
Location
Last Update
  • President at 21st Century Oncology
    D. C.
    President
    Mobile Phone
    Oct 22, 2024
  • Owner at 21st Century Oncology
    K. H.
    Owner
    Mobile Phone
    Oct 21, 2024
  • Chief Executive Officer at 21st Century Oncology
    L. B.
    Chief Executive Officer
    Mobile Phone
    Oct 22, 2024
  • Owner at 21st Century Oncology
    M. A.
    Owner
    Mobile Phone
    Oct 22, 2024
  • President at 21st Century Oncology
    R. D.
    President
    Mobile Phone
    Oct 17, 2024
  • Chief Radiation Therapist at 21st Century Oncology
    K. C.
    Chief Radiation Therapist
    Mobile Phone
    Oct 18, 2024
  • Chief Radiation Therapist And Regional Technical Manager For The Florida Panhandle And Alabama at 21st Century Oncology
    R. L. J.
    Chief Radiation Therapist And Regional Technical Manager For The Florida Panhandle And Alabama
    Mobile Phone
    Oct 16, 2024
  • Chief Medical Dosimetrist at 21st Century Oncology
    C. B.
    Chief Medical Dosimetrist
    Mobile Phone
    Aug 29, 2026
  • Director, Network Operations at 21st Century Oncology
    C. M.
    Director, Network Operations
    Mobile Phone
    May 22, 2026
  • Regional Director at 21st Century Oncology
    C. R.
    Regional Director
    Mobile Phone
    Aug 10, 2024

Frequently Asked Questions

What are the largest departments at 21st Century Oncology?

Minus sign iconPlus sign iconHealthcare Services is the largest department at 41% of profiles with a known department, down from 46% in July 2025, followed by Accounting (15%, up from 3%) and Community & Social Services (14%, up from 0%). 21st Century Oncology's workforce spans 17 departments.

How has 21st Century Oncology's workforce changed over the past year?

Minus sign iconPlus sign icon21st Century Oncology's workforce fell 32% between July 2025 and July 2026. Healthcare Services's share of profiles with a known department fell from 46% to 41%.

How many employees does 21st Century Oncology have currently?

Minus sign iconPlus sign icon21st Century Oncology has approximately 935 employees as of October 2026. These team members are located across 4 continents, including North America, South America and Asia.

Who are 21st Century Oncology's key employees and leadership?

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As of October 2026, 21st Century Oncology's key employees include:

  • Chief Executive Officer: L. B.
  • Chief Radiation Therapist: K. C.
  • Chief Radiation Therapist And Regional Technical Manager For The Florida Panhandle And Alabama: R. L. J.
  • Chief Medical Dosimetrist: C. B.
  • President: D. C.

Looking for contact data? Unlock accurate emails and phone numbers for your ideal prospects with LeadIQ.

What is 21st Century Oncology's most common email format?

Minus sign iconPlus sign icon21st Century Oncology employees' email format typically follows the pattern of First.Last@21co.com. Trying to find reliable and up-to-date employee contact data? Find more 21st Century Oncology email formats with LeadIQ.

What is 21st Century Oncology known for?

Minus sign iconPlus sign icon21st Century Oncology operates in the Medical Practices industry. You can contact 21st Century Oncology's main corporate office by phone at
+1-239-931-****
. Explore 21st Century Oncology's company overview page for more information.

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