Alan D. Berkenwald, MD
NPI 1033188636ActiveIndividual· Internal Medicine· Amherst, MA
Internal Medicine (MD) in Amherst, Massachusetts, trained at Boston University School of Medicine (class of 1978). 167 Medicare patients in 2024, $16,420 paid; nearly all of their 130 Part D prescriptions were generic (92%). Endo USA, Inc. reported $29.70 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1033188636 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 16, 2006 |
| Last updated in NPPES | Jan 3, 2024 |
| Certified by provider | Jan 3, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 44660 | 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 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 - Internal Medicine (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 167 |
|---|---|
| Services billed | 354 across 39 procedure codes |
| Paid by Medicare | $16,420 |
Part D prescriptions in 2024
| Prescriptions (claims) | 130 · 150 30-day fills |
|---|---|
| Patients | 68 |
| Total drug cost | $1,739 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 1978 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Valley Medical Group PCEasthampton, MA · 108 clinicians
Hospital affiliation
- Cooley Dickinson Hospital Inc,theNorthampton, MA
Industry payments (Open Payments)
- 2025$29.70 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Endo USA, Inc. | $29.70 | 1 |
What the 2025 payments were for
- Food and Beverage$29.70 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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