Quick answers
- Where does Stephen D. Johnston see patients?
- Medicare's clinician data lists 30 practice locations, including Orlando, FL, Lakewood Ranch, FL and Winter Garden, FL. Call before your visit to confirm the address.
- What is Stephen D. Johnston's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Stephen D. Johnston accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen D. Johnston accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Stephen D. Johnston?
- (407) 587-0710, as listed in official Medicare / NPI Registry data.
- What is Stephen D. Johnston's NPI number?
- 1336187673. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Stephen D. Johnston is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 30; the Medicare profile lists all.
- 10105 Clear Vista St, Suite 100Orlando, FL 32832 (407) 587‑0710
- 10910 State Rd 70 E, 103 Simonmed Imaging Lakewood RanchLakewood Ranch, FL 34202 (941) 954‑1900
- 1227 Daniels RdWinter Garden, FL 34787 (689) 407‑4115
- 1315 S Orange Ave, 1b Simonmed Imaging Delaney ParkOrlando, FL 32806 (407) 999‑9977
- 1350 W Fairbanks Ave, Simonmed Imaging Winter Park IIIWinter Park, FL 32789 (321) 203‑5730
Group practices
Medicare enrollment lists Stephen D. Johnston as a member of these groups (CMS data updated 2026-10-02).
- Simonmed Imaging Florida LLC317 clinicians in the group
- Howard John Simon MD PC38 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Orlando
Clinicians with the same Medicare primary specialty in Orlando, FL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Louisiana State University School Of Medicine In Shreveport |
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336187673 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians