Erik Aron Holzwanger, M.D.
NPI 1457747776ActiveIndividual· Internal Medicine, Gastroenterology· Boston, MA
Internal Medicine, Gastroenterology (M.D.) with Bmc Affiliated Physicians, Inc. and 3 other groups, practicing in Boston, Massachusetts. In 2024 Medicare paid $118,181 for 298 patients, and Part D covered 324 of their prescriptions, 83% of them generic. Boston Scientific Corporation was the largest of 5 companies reporting payments in 2025, $19,598 in all, mostly consulting fees. Lists Lowell General Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1457747776 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 14, 2015 |
| Last updated in NPPES | Jan 5, 2026 |
| Certified by provider | Jan 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 277398 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 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 | 298 |
|---|---|
| Services billed | 929 across 76 procedure codes |
| Paid by Medicare | $118,181 |
Part D prescriptions in 2024
| Prescriptions (claims) | 324 · 409 30-day fills |
|---|---|
| Patients | 170 |
| Total drug cost | $43,481 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical groups
- Bmc Affiliated Physicians, Inc.Brockton, MA · 564 clinicians
- Physicians of Cape Cod HospitalHyannis, MA · 334 clinicians
- Pratt Medical Group IncBoston, MA · 286 clinicians
- Integrated Gastroenterology Consultants, P.C.Andover, MA · 38 clinicians
Hospital affiliations
- Lowell General HospitalLowell, MA
- Melrosewakefield HealthcareMelrose, MA
- Merrimack Health Lawrence HospitalLawrence, MA
- South Shore HospitalSouth Weymouth, MA
- Tufts Medical CenterBoston, MA
Industry payments (Open Payments)
- 2025$19,598 · 21 payments from 5 companies
- 2024$20,793 · 30 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $11,383 | 13 |
| Olympus Medical Systems Corporation | $4,302 | 4 |
| Micro-Tech Endoscopy USA, Inc. | $3,600 | 1 |
| Cook Medical LLC | $223.71 | 2 |
| Conmed Corporation | $89.48 | 1 |
What the 2025 payments were for
- Consulting Fee$7,765 · 5 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$7,500 · 6 payments
- Compensation for serving as faculty or as a speaker for a medical education program$3,600 · 1 payment
- Food and Beverage$696.12 · 8 payments
- Travel and Lodging$36.96 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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