Dr. John C. Brooks, M.D.
Internal Medicine (Internal Medicine Physician)
- Medicare participating
At a glance
- Medical school
- University of Texas Medical Branch at Galveston (1980)
- Years since graduation
- 46
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 5,412
Licensed in Texas since 1980, 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
- 1980Medical school: University of Texas Medical Branch at Galveston
- 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
-
Internal Medicine Physician primary
TX license F6479 (first issued 1980; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Baylor University Medical Center Dallas, TX
- Texas Health Presbyterian Hospital Dallas Dallas, TX
Medical groups
- Abksw Preferred Health PArtners, PLLC (49 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
- 5,412
- Services billed
- 89,287
- Patients’ average age
- 76
| Service | Times | Patients |
|---|---|---|
| Insertion of needle into vein for collection of blood sample | 10,679 | 4,960 |
| Blood test, comprehensive group of blood chemicals | 8,736 | 4,676 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 8,126 | 4,559 |
| Blood test, lipids (cholesterol and triglycerides) | 6,402 | 4,280 |
| Blood test, thyroid stimulating hormone (tsh) | 5,818 | 4,010 |
| Manual urinalysis test with examination using microscope, automated | 5,077 | 3,535 |
| Hemoglobin a1c level | 4,614 | 2,657 |
| Vitamin d-3 level | 3,734 | 2,838 |
| Thyroxine (thyroid chemical), free | 2,660 | 1,666 |
| Cyanocobalamin (vitamin b-12) level | 2,567 | 1,826 |
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 |
|---|---|
| Rosuvastatin Calcium Other prescribers in Dallas, TX | 402 |
| Atorvastatin Calcium Other prescribers in Dallas, TX | 382 |
| Ezetimibe Other prescribers in Dallas, TX | 252 |
| Losartan Potassium Other prescribers in Dallas, TX | 196 |
| Levothyroxine Sodium Other prescribers in Dallas, TX | 179 |
| Escitalopram Oxalate Other prescribers in Dallas, TX | 179 |
| Ozempic (semaglutide) Other prescribers in Dallas, TX | 166 |
| Eliquis (apixaban) Other prescribers in Dallas, TX | 159 |
| Tamsulosin Hcl Other prescribers in Dallas, TX | 150 |
| Azithromycin Other prescribers in Dallas, TX | 140 |
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, 16 companies reported 68 payments worth $1,529 in total to this clinician.
| Amgen Inc. | $218 |
|---|---|
| Sumitomo Pharma America, Inc. | $190 |
| Novartis Pharmaceuticals Corporation | $180 |
| Abbott Laboratories | $155 |
| Pfizer Inc. | $154 |
| Lilly USA, LLC | $99.59 |
| Sanofi-aventis U.S. LLC | $79.88 |
| Eisai Inc. | $76.22 |
| Food and Beverage | $1,529 |
|---|
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.