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21st Century Oncology Employee Directory

Medical PracticesFlorida, United States501-1000 Employees

GenesisCare provides cancer care through a multidisciplinary approach, tailoring treatment plans to the individual needs of patients. The company is based in Fort Myers, Florida, and operates within the medical practices sector as a mid-sized provider. Its primary customers are individuals seeking cancer treatment who require coordinated, personalized clinical care. The company has international activity reflected in partnerships and projects in the UK and Australia. In May 2026, GenesisCare announced a collaboration with SeeTreat to enable access to offline adaptive treatment assessment technology.

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
4

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  • Russian Federation
    1
  • Philippines
    1
  • Uzbekistan
    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
  • Executive Assistant To The Chief Executive Officer at 21st Century Oncology
    M. S.
    Executive Assistant To The Chief Executive Officer
    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

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
  • Executive Assistant To The Chief Executive Officer at 21st Century Oncology
    M. S.
    Executive Assistant To The Chief Executive Officer
    Mobile Phone
    Oct 17, 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

Frequently Asked Questions

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.

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.

How many employees does 21st Century Oncology have currently?

Minus sign iconPlus sign icon21st Century Oncology has approximately 940 employees as of August 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 August 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.

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