Lauren Michele Bleich, MD/MPH
NPI 1083882989ActiveIndividual· Internal Medicine, Gastroenterology· Acton, MA
Internal Medicine, Gastroenterology (MD/MPH) in Acton, Massachusetts, trained at Tulane University School of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $894,418 for 487 claims, against $83,924 paid for services in 2024. Abbvie Inc. was the largest of 19 companies reporting payments in 2025, $3,110 in all, mostly food and beverage.
Overview
| NPI | 1083882989 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD/MPH |
| Sole proprietor | No |
| NPI issued | Feb 13, 2008 |
| Last updated in NPPES | Jul 14, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 16572 | NH |
| Internal Medicine, Gastroenterology | 207RG0100X | 242931 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 293 |
|---|---|
| Services billed | 2,685 across 38 procedure codes |
| Paid by Medicare | $83,924 |
Part D prescriptions in 2024
| Prescriptions (claims) | 487 · 832 30-day fills |
|---|---|
| Patients | 205 |
| Total drug cost | $894,418 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Middlesex Gastroenterolgy PCActon, MA · 11 clinicians
Hospital affiliation
- Emerson Hospital -W Concord, MA
Industry payments (Open Payments)
- 2025$3,110 · 144 payments from 19 companies
- 2024$3,623 · 136 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $587.61 | 29 |
| Takeda Pharmaceuticals U.S.A., Inc. | $475.08 | 26 |
| Gilead Sciences, Inc. | $387.05 | 15 |
| Madrigal Pharmaceuticals | $264.97 | 8 |
| Janssen Biotech, Inc. | $259.47 | 7 |
What the 2025 payments were for
- Food and Beverage$3,110 · 144 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Gastroenterology providers in Massachusetts →