Dr. Thomas J. Izquierdo, M.D.
Gastroenterology (Gastroenterology Physician)
- Medicare participating
At a glance
- Years since graduation
- 44
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 80
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
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
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
NY license 156124
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Medicare patients and services
- Medicare patients, 2024
- 80
- Services billed
- 211
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 20-29 minutes | 156 | 90 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 37 | 37 |
| Biopsy of large bowel using a flexible endoscope | 24 | 24 |
| New patient office or other outpatient visit, 30-44 minutes | 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 |
|---|---|
| Pantoprazole Sodium Other prescribers in Jackson Heights, NY | 1,290 |
| Famotidine Other prescribers in Jackson Heights, NY | 1,202 |
| Linzess (linaclotide) Other prescribers in Jackson Heights, NY | 529 |
| Omeprazole Other prescribers in Jackson Heights, NY | 476 |
| Dicyclomine Hcl Other prescribers in Jackson Heights, NY | 361 |
| Procto-Med Hc (hydrocortisone) Other prescribers in Jackson Heights, NY | 286 |
| Plenvu (peg3350/sod sul/nacl/kcl/asb/c) | 208 |
| Hydrocortisone Other prescribers in Jackson Heights, NY | 183 |
| Sucralfate Other prescribers in Jackson Heights, NY | 157 |
| Proctozone-Hc (hydrocortisone) Other prescribers in Jackson Heights, NY | 128 |
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, 8 companies reported 59 payments worth $13,470 in total to this clinician.
| AbbVie Inc. | $12,369 |
|---|---|
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $364 |
| Ardelyx, Inc. | $248 |
| Pfizer Inc. | $186 |
| Madrigal Pharmaceuticals | $123 |
| Celltrion USA Inc. | $116 |
| Ipsen Biopharmaceuticals, Inc | $33.88 |
| Intra-sana Laboratories | $29.35 |
| Compensation for services other than consulting (speaking, faculty) | $11,875 |
|---|---|
| Food and Beverage | $1,595 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| AbbVie Inc. Jan 3, 2025 | Compensation for services other than consulting (speaking, faculty) | $2,375 |
| AbbVie Inc. Mar 18, 2025 | Compensation for services other than consulting (speaking, faculty) | $2,375 |
| AbbVie Inc. Jun 16, 2025 | Compensation for services other than consulting (speaking, faculty) LINZESS · GASTROENTEROLOGY | $2,375 |
| AbbVie Inc. Dec 11, 2025 | Compensation for services other than consulting (speaking, faculty) | $2,375 |
| AbbVie Inc. Dec 22, 2025 | Compensation for services other than consulting (speaking, faculty) LINZESS · GASTROENTEROLOGY | $2,375 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
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.