Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Stephen Ko, MD

Individual provider Radiation Oncology Physician · NPI 1134183304

Stephen Ko, MD is a Radiation Oncology in Jacksonville, Florida. Graduated from University of Texas at Austin Dell Medical School in 1999, 27 years ago. Practices with SSM Regional Health Services, a 166-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Florida and Missouri.

Years since qualifying
27
Trained at
University of Texas at Austin Dell Medical School
Licensed in
FL, MO
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4500 San Pablo Rd S
Jacksonville, FL 32224-1865
Phone: (904) 953-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1241 W Stadium Blvd, Jefferson City, MO 65109-6023 — (573) 635-2282

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence ME90642 (FL)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 2025045903 (MO)

Record details

NPI number1134183304
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 14, 2006
Last updated in NPPESDecember 19, 2025
Certification dateDecember 19, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF TEXAS AT AUSTIN DELL MEDICAL SCHOOL
Graduated 1999 (27 years in practice)
Group practice Ssm Regional Health Services — 166 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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