Bonnie Alice Ewald, M.D.
NPI 1346535440ActiveIndividual· Internal Medicine, Gastroenterology· Burlington, MA
Internal Medicine, Gastroenterology (M.D.) in Burlington, Massachusetts, trained at New York Medical College (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $155,841 for 416 claims, against $58,787 paid for services in 2024.
Overview
| NPI | 1346535440 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 16, 2011 |
| Last updated in NPPES | Jul 31, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 260933 | MA |
| Internal Medicine | 207R00000X | 247792 | 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 - Gastroenterology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 362 |
|---|---|
| Services billed | 644 across 38 procedure codes |
| Paid by Medicare | $58,787 |
Part D prescriptions in 2024
| Prescriptions (claims) | 416 · 839 30-day fills |
|---|---|
| Patients | 111 |
| Total drug cost | $155,841 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Lahey Clinic IncBurlington, MA · 1,381 clinicians
Hospital affiliations
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA
- Northeast Hospital CorporationBeverly, MA
- Winchester HospitalWinchester, MA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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