Dr. J. Marcus Downs, MD
Colorectal Surgery (Colon & Rectal Surgery Physician)
- Medicare participating
At a glance
- Medical school
- University of Missouri, Columbia School of Medicine (1983)
- Years since graduation
- 43
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 331
Licensed in Texas since 1993, 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
- 1983Medical school: University of Missouri, Columbia School of Medicine
- 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
-
Colon & Rectal Surgery Physician primary
TX license J3086 (first issued 1993; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Texas Health Presbyterian Hospital Dallas Dallas, TX
- North Central Surgical Center LLP Dallas, TX
Medical groups
- Texas Oncology PA (1,014 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
- 331
- Services billed
- 615
- Patients’ average age
- 73
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 20-29 minutes | 103 | 74 |
| Biopsy of large bowel using a flexible endoscope | 101 | 101 |
| New patient office or other outpatient visit, 30-44 minutes | 86 | 86 |
| Colorectal cancer screening; colonoscopy on individual at high risk | 46 | 46 |
| Diagnostic exam of anus using an endoscope | 42 | 38 |
| Established patient office or other outpatient visit, 30-39 minutes | 30 | 22 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 28 | 28 |
| Established patient office or other outpatient visit, 10-19 minutes | 27 | 21 |
| Removal of external hemorrhoids by rubber banding | 23 | 15 |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 20 | 20 |
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 |
|---|---|
| Budesonide Dr (budesonide) Other prescribers in Dallas, TX | 12 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 2 companies reported 3 payments worth $145 in total to this clinician.
| Thd America, Inc. | $122 |
|---|---|
| Tela Bio, Inc. | $23.54 |
| Food and Beverage | $145 |
|---|
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.