Dr. Ali Aamar
Gastroenterology (Gastroenterology Physician)
- Medicare participating
At a glance
- Years since graduation
- 16
- In the NPI registry since
- 2014
- Medicare patients seen, 2024
- 321
Licensed in Texas since 2022, 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. What an NPI is
Education and training
- 2014Registered with an NPI (national billing number; not a license date)
Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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
-
Gastroenterology Physician primary
TX license T5801 (first issued 2022; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Houston Methodist Hospital Houston, TX
- Houston Methodist Clear Lake Hospital Nassau Bay, TX
- Houston Methodist Baytown Hospital Baytown, TX
Medical groups
- Tmh Physician Associates PLLC (1,690 clinicians)
- Houston Methodist Specialty Physicians (1,528 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
- 321
- Services billed
- 918
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 170 | 68 |
| Established patient office or other outpatient visit, 20-29 minutes | 76 | 67 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 71 | 69 |
| New patient office or other outpatient visit, 30-44 minutes | 68 | 68 |
| Established patient office or other outpatient visit, 30-39 minutes | 61 | 50 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 57 | 55 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 55 | 51 |
| Biopsy of large bowel using a flexible endoscope | 45 | 44 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 39 | 27 |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 35 | 35 |
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 |
|---|---|
| Pantoprazole Sodium Other prescribers in Houston, TX | 191 |
| Sod Sulf-Potass Sulf-Mag Sulf (sodium, potassium,mag sulfates) Other prescribers in Houston, TX | 94 |
| Plenvu (peg3350/sod sul/nacl/kcl/asb/c) | 53 |
| Dicyclomine Hcl Other prescribers in Houston, TX | 48 |
| Omeprazole Other prescribers in Houston, TX | 34 |
| Famotidine Other prescribers in Houston, TX | 25 |
| Metronidazole Other prescribers in Houston, TX | 22 |
| Linzess (linaclotide) Other prescribers in Houston, TX | 22 |
| Ciprofloxacin Hcl Other prescribers in Houston, TX | 22 |
| Doxycycline Hyclate Other prescribers in Houston, TX | 20 |
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, 3 companies reported 10 payments worth $344 in total to this clinician.
| Medtronic, Inc. | $159 |
|---|---|
| AbbVie Inc. | $157 |
| Olympus America Inc. | $28.68 |
| Food and Beverage | $344 |
|---|
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.