Michael M. Einstein, M.D.
NPI 1659339901ActiveIndividual· Internal Medicine, Gastroenterology· Hartford, CT
Internal Medicine, Gastroenterology (M.D.) in Hartford, Connecticut, trained at Icahn School of Medicine at Mount Sinai (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $1,262,969 for 2,340 claims, against $47,148 paid for services in 2024. Gilead Sciences, Inc. was the largest of 22 companies reporting payments in 2025, $28,660 in all, mostly speaking and faculty fees.
Overview
| NPI | 1659339901 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 3, 2006 |
| Last updated in NPPES | Aug 10, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 49700 | CT |
| Internal Medicine, Transplant Hepatology | 207RT0003X | 49700 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 304 |
|---|---|
| Services billed | 510 across 27 procedure codes |
| Paid by Medicare | $47,148 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,340 · 3,747 30-day fills |
|---|---|
| Patients | 331 |
| Total drug cost | $1,262,969 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Icahn School of Medicine at Mount Sinai |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Hartford HospitalHartford, CT · 1,044 clinicians
- Connecticut Gi PLLCWallingford, CT · 248 clinicians
Hospital affiliations
- Day Kimball HospitalPutnam, CT
- Hartford HospitalHartford, CT
- William W Backus HospitalNorwich, CT
- Windham Community Memorial HospitalWillimantic, CT
Industry payments (Open Payments)
- 2025$28,660 · 122 payments from 22 companies
- 2024$23,437 · 135 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $15,760 | 52 |
| Ipsen Biopharmaceuticals, Inc | $7,350 | 3 |
| Mirum Pharmaceuticals, Inc. | $3,317 | 4 |
| Janssen Biotech, Inc. | $435.30 | 10 |
| Takeda Pharmaceuticals U.S.A., Inc. | $378.64 | 12 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$16,172 · 5 payments
- Consulting Fee$6,310 · 2 payments
- Food and Beverage$3,778 · 105 payments
- Travel and Lodging$2,301 · 9 payments
- Education$99.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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