Dr. Mark B. Renfro, MD
Neurosurgery (Neurological Surgery Physician)
- Medicare participating
At a glance
- Medical school
- University of Florida College of Medicine (1990)
- Years since graduation
- 36
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 256
Licensed in Texas since 1997, 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
- 1990Medical school: University of Florida College of Medicine
- 2005Registered 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
-
Neurological Surgery Physician primary
TX license K3425 (first issued 1997; 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
- Ut Health East Texas Tyler Regional Hospital Tyler, TX
- Ut Health East Texas Athens Hospital Athens, TX
- Baylor Scott & White Texas Spine & Joint Hospital Tyler, TX
Medical groups
- Tyler Neurosurgical Associates, P.a. (8 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
- 256
- Services billed
- 649
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| New patient office or other outpatient visit, 45-59 minutes | 71 | 71 |
| Established patient office or other outpatient visit, 20-29 minutes | 56 | 51 |
| Insertion of cage or mesh device to spine bone and disc space during spine fusion | 53 | 32 |
| Established patient office or other outpatient visit, 30-39 minutes | 41 | 34 |
| New patient office or other outpatient visit, 30-44 minutes | 28 | 28 |
| Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment | 22 | 16 |
| Fusion of upper spine bone with removal of disc and release of spinal cord or nerve, 1 disc | 21 | 20 |
| Fusion of upper spine bone with removal of disc and release of spinal cord or nerve, each additional disc | 19 | 14 |
| Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | 18 | 18 |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 14 | 14 |
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.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Hydrocodone-Acetaminophen (hydrocodone/acetaminophen) Other prescribers in Tyler, TX | 61 |
| Gabapentin Other prescribers in Tyler, TX | 30 |
| Cyclobenzaprine Hcl Other prescribers in Tyler, TX | 15 |
| Tizanidine Hcl Other prescribers in Tyler, TX | 11 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.