Ruth Elizabeth Berggren, M.D.
NPI 1780781237ActiveIndividual· Internal Medicine, Infectious Disease· Lebanon, NH
Internal Medicine, Infectious Disease (M.D.) in Lebanon, New Hampshire, trained at Harvard Medical School (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $65,225 for 205 claims, against $18,070 paid for services in 2024.
Overview
| NPI | 1780781237 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 19, 2006 |
| Last updated in NPPES | Oct 3, 2022 |
| Certified by provider | Jul 29, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | EL10230 | NH |
| Internal Medicine, Infectious Disease | 207RI0200X | K5069 | TX |
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 - Infectious Disease (NH); Practitioner - Infectious Disease (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 107 |
|---|---|
| Services billed | 170 across 13 procedure codes |
| Paid by Medicare | $18,070 |
Part D prescriptions in 2024
| Prescriptions (claims) | 205 · 230 30-day fills |
|---|---|
| Patients | 49 |
| Total drug cost | $65,225 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Infectious Disease |
| Telehealth | Offers telehealth |
Medical groups
- Dartmouth-Hitchcock ClinicLebanon, NH · 1,472 clinicians
- Mary Hitchcock Memorial HospitalManchester, NH · 1,280 clinicians
Hospital affiliations
- Alice Peck Day Memorial HospitalLebanon, NH
- Mary Hitchcock Memorial HospitalLebanon, NH
- Mt Ascutney HospitalWindsor, VT
- Rutland Regional Medical CenterRutland, VT
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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All Internal Medicine, Infectious Disease providers in New Hampshire →