Dr. R. K. Walker, MD
Radiology (Diagnostic Radiology Physician)
- Medicare participating
At a glance
- Medical school
- University of Texas Medical School at San Antonio (1988)
- Years since graduation
- 38
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 3,705
Licensed in Texas since 1989, according to the Texas Medical Board. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1988Medical school: University of Texas Medical School at San Antonio
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Diagnostic Radiology Physician primary
TX license H6683 (first issued 1989; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Christus Mother Frances Hospital Tyler, TX
- Christus Mother Frances Hospital Sulphur Springs Sulphur Springs, TX
- Christus Mother Frances Hospital- Jacksonville Jacksonville, TX
- Christus Mother Frances Hospital- Winnsboro Winnsboro, TX
Medical groups
- Radiology Associates of North Texas PA (346 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 3,705
- Services billed
- 5,037
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| X-ray of chest, 1 view | 826 | 753 |
| X-ray of chest, 2 views | 204 | 203 |
| X-ray of abdomen, 1 view | 190 | 173 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 177 | 168 |
| Ct scan head or brain without contrast | 134 | 133 |
| Ct scan of chest without contrast | 83 | 83 |
| Ct scan of abdomen and pelvis with contrast | 82 | 80 |
| X-ray of hip, 2-3 views | 82 | 81 |
| X-ray of lower and sacral spine, 2-3 views | 80 | 80 |
| X-ray of shoulder, minimum of 2 views | 72 | 69 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 2 companies reported 8 payments worth $445 in total to this clinician.
| Boston Scientific Corporation | $427 |
|---|---|
| Sirtex Medical Inc | $18.10 |
| Food and Beverage | $445 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.