Michael Charles Ollendieck, MD
NPI 1235104126ActiveIndividual· Internal Medicine· Nashua, NH
Internal Medicine (MD) with Foundation Medical Partners Inc, practicing in Nashua, New Hampshire. Their prescriptions cost Medicare Part D more than their services did: $545,001 for 6,921 claims, against $93,602 paid for services in 2024. Lists Elliot Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1235104126 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 22, 2006 |
| Last updated in NPPES | May 2, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 11457 | NH |
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 (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 328 |
|---|---|
| Services billed | 1,842 across 38 procedure codes |
| Paid by Medicare | $93,602 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,921 · 17,962 30-day fills |
|---|---|
| Patients | 582 |
| Total drug cost | $545,001 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Foundation Medical Partners IncMilford, NH · 317 clinicians
Hospital affiliations
- Elliot HospitalManchester, NH
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA
- Mary Hitchcock Memorial HospitalLebanon, NH
- Southern Nh Medical CenterNashua, NH
- St Joseph HospitalNashua, NH
Other facilities
- Amedisys Home HealthHome health agency · Portsmouth, NH
- Home Health & Hospice CareHome health agency · Merrimack, NH
- Webster at RyeNursing home · Rye, NH
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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