Doctor profile · Federal record
Dr. Stephen Ko, MD
Radiation Oncology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · Jacksonville, FL
- NPI 1134183304
- Accepts Medicare
- 27 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
4500 San Pablo RD S
Jacksonville, FL 322241865
(904) 953-2000 - Additional location
-
1241 W Stadium Blvd
Jefferson City, MO 651096023
(573) 635-2282
fax (573) 635-2536
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- December 19, 2025
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 2085R0001X — NUCC code
- State licenses (2)
- Florida #ME90642 · Missouri #2025045903
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1134183304. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,062
Distinct HCPCS
10
Medicare allowed
$131,335
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
77300 |
Calculation of radiation therapy dose | 222 | 70 | $31 | |
77427 |
Radiation treatment management, 5 treatment sessions | 178 | 58 | $176 | |
77334 |
Design and construction of complex radiation treatment device | 147 | 59 | $56 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 117 | 92 | $90 | |
77263 |
Complex radiation therapy planning | 72 | 67 | $155 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 60 | 60 | $164 | |
77301 |
High precision radiation therapy planning | 50 | 47 | $392 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 50 | 44 | $60 | |
77338 |
Design and construction of radiation treatment device for high precision radiation therapy | 49 | 45 | $210 | |
77290 |
Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved | 30 | 27 | $76 |
In context: peer comparison
Among 30 peers in this city , average services per provider: 162. This provider delivers 6.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
39
Patients
0
Total drug cost
$1,071
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gabapentin | Generic | 14 | 0 | $211 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 13 | 0 | $361 |
| Dexamethasone | Generic | 12 | 0 | $499 |
Hospital affiliations
Frequently asked questions
What is Dr. Stephen Ko's medical specialty?
Dr. Stephen Ko practices Radiation Oncology Physician in Jacksonville, FL.
Where does Dr. Stephen Ko practice?
Dr. Stephen Ko practices at 4500 San Pablo RD S, Jacksonville, FL 322241865. Office phone: 9049532000.
What is Dr. Stephen Ko's NPI?
Dr. Stephen Ko's National Provider Identifier (NPI) is 1134183304, issued by NPPES.
Does Dr. Stephen Ko accept Medicare assignment?
Yes. Dr. Stephen Ko accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Ko commonly perform?
Top Medicare-reported procedures in 2023: Calculation of radiation therapy dose (HCPCS 77300); Radiation treatment management, 5 treatment sessions (HCPCS 77427); Design and construction of complex radiation treatment device (HCPCS 77334). Source: CMS Medicare Physician & Other Practitioners file.