Quick answers
- Where does Stephen B. Johnston see patients?
- Medicare's clinician data lists 2 practice locations, including Plano, TX and Dallas, TX. Call before your visit to confirm the address.
- What is Stephen B. Johnston's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does Stephen B. Johnston accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen B. 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 B. Johnston?
- (972) 993-5050, as listed in official Medicare / NPI Registry data.
- What is Stephen B. Johnston's NPI number?
- 1831163153. 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 B. Johnston is enrolled with Medicare (CMS data updated 2026-10-02).
- 4708 Dexter Dr, Suite 400Plano, TX 75093 (972) 993‑5050
- 8222 Douglas Ave, Suite 600Dallas, TX 75225 (972) 993‑5040
Group practices
Medicare enrollment lists Stephen B. Johnston as a member of this group (CMS data updated 2026-10-02).
- Abksw Preferred Health Specialty Partners PLLC2 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Texas →
Other cardiologists in Plano
Clinicians with the same Medicare primary specialty in Plano, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At San Antonio |
| Graduation year | 1981 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831163153 |
| 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