Dr. David F. Stein, MD
Gastroenterology (Gastroenterology Physician)
- Medicare participating
At a glance
- Medical school
- State University of New York Downstate Medical Center (1990)
- Years since graduation
- 36
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 97
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: State University of New York Downstate Medical Center
- 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
-
Gastroenterology Physician primary
NY license 187734
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Medical groups
- Gastrointestinal Care of Long Island PLLC (183 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
- 97
- Services billed
- 166
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 44 | 37 |
| New patient office or other outpatient visit, 45-59 minutes | 41 | 41 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 15 | 15 |
| Biopsy of large bowel using a flexible endoscope | 11 | 11 |
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 |
|---|---|
| Omeprazole Other prescribers in Bronx, NY | 159 |
| Pantoprazole Sodium Other prescribers in Bronx, NY | 135 |
| Gavilyte-G (peg3350/sod sulf,bicarb,cl/kcl) Other prescribers in Bronx, NY | 116 |
| Metoclopramide Hcl Other prescribers in Bronx, NY | 88 |
| Famotidine Other prescribers in Bronx, NY | 69 |
| Linzess (linaclotide) Other prescribers in Bronx, NY | 63 |
| Vemlidy (tenofovir alafenamide) | 41 |
| Alosetron Hcl | 24 |
| Entecavir | 22 |
| Gavilyte-C (peg3350/sod sulf,bicarb,cl/kcl) Other prescribers in Bronx, NY | 22 |
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, 13 companies reported 118 payments worth $33,903 in total to this clinician.
| Madrigal Pharmaceuticals | $21,951 |
|---|---|
| AbbVie Inc. | $11,248 |
| Takeda Pharmaceuticals U.S.A., Inc. | $137 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $123 |
| Exact Sciences Corporation | $95.14 |
| Ardelyx, Inc. | $74.85 |
| Pfizer Inc. | $65.75 |
| Janssen Biotech, Inc. | $57.92 |
| Compensation for services other than consulting (speaking, faculty) | $29,005 |
|---|---|
| Food and Beverage | $3,128 |
| Consulting Fee | $968 |
| Travel and Lodging | $783 |
| Grant | $20.00 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| AbbVie Inc. Jul 25, 2025 | Compensation for services other than consulting (speaking, faculty) MAVYRET · VIROLOGY | $4,000 |
| Madrigal Pharmaceuticals Dec 18, 2025 | Compensation for services other than consulting (speaking, faculty) REZDIFFRA · LIVER DISEASE | $3,878 |
| Madrigal Pharmaceuticals Oct 16, 2025 | Compensation for services other than consulting (speaking, faculty) REZDIFFRA · LIVER DISEASE | $3,548 |
| Madrigal Pharmaceuticals Oct 23, 2025 | Compensation for services other than consulting (speaking, faculty) REZDIFFRA · LIVER DISEASE | $3,548 |
| Madrigal Pharmaceuticals Nov 5, 2025 | Compensation for services other than consulting (speaking, faculty) REZDIFFRA · LIVER DISEASE | $3,548 |
| Madrigal Pharmaceuticals Nov 13, 2025 | Compensation for services other than consulting (speaking, faculty) REZDIFFRA · LIVER DISEASE | $3,548 |
| AbbVie Inc. Aug 14, 2025 | Compensation for services other than consulting (speaking, faculty) MAVYRET · VIROLOGY | $2,500 |
| AbbVie Inc. Nov 17, 2025 | Compensation for services other than consulting (speaking, faculty) MAVYRET · VIROLOGY | $2,500 |
| Madrigal Pharmaceuticals Aug 13, 2025 | Compensation for services other than consulting (speaking, faculty) REZDIFFRA · LIVER DISEASE | $1,935 |
| Madrigal Pharmaceuticals Dec 15, 2025 | Consulting Fee | $968 |
All 15 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Madrigal Pharmaceuticals Dec 18, 2025 | Compensation for services other than consulting (speaking, faculty) REZDIFFRA · LIVER DISEASE | $3,878 |
| Madrigal Pharmaceuticals Dec 15, 2025 | Consulting Fee | $968 |
| AbbVie Inc. Nov 17, 2025 | Compensation for services other than consulting (speaking, faculty) MAVYRET · VIROLOGY | $2,500 |
| Madrigal Pharmaceuticals Nov 13, 2025 | Compensation for services other than consulting (speaking, faculty) REZDIFFRA · LIVER DISEASE | $3,548 |
| Madrigal Pharmaceuticals Nov 5, 2025 | Compensation for services other than consulting (speaking, faculty) REZDIFFRA · LIVER DISEASE | $3,548 |
| Madrigal Pharmaceuticals Oct 23, 2025 | Compensation for services other than consulting (speaking, faculty) REZDIFFRA · LIVER DISEASE | $3,548 |
| Madrigal Pharmaceuticals Oct 16, 2025 | Compensation for services other than consulting (speaking, faculty) REZDIFFRA · LIVER DISEASE | $3,548 |
| AbbVie Inc. Aug 14, 2025 | Compensation for services other than consulting (speaking, faculty) MAVYRET · VIROLOGY | $2,500 |
| Madrigal Pharmaceuticals Aug 13, 2025 | Compensation for services other than consulting (speaking, faculty) REZDIFFRA · LIVER DISEASE | $1,935 |
| AbbVie Inc. Jul 25, 2025 | Compensation for services other than consulting (speaking, faculty) MAVYRET · VIROLOGY | $4,000 |
| AbbVie Inc. Jul 14, 2025 | Travel and Lodging MAVYRET · VIROLOGY · travel to ATLANTA, GA · in-kind | $144 |
| AbbVie Inc. Jun 27, 2025 | Travel and Lodging MAVYRET · VIROLOGY · travel to ATLANTA, GA · in-kind | $369 |
| AbbVie Inc. Jun 27, 2025 | Travel and Lodging MAVYRET · VIROLOGY · travel to ATLANTA, GA · in-kind | $191 |
| AbbVie Inc. Jun 27, 2025 | Travel and Lodging MAVYRET · VIROLOGY · travel to ATLANTA, GA · in-kind | $80.00 |
| AbbVie Inc. Jan 15, 2025 | Grant RINVOQ · IMMUNOLOGY | $20.00 |
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.