Kathryn Rensenbrink, MD
NPI 1124067194ActiveIndividual· Internal Medicine· Ellsworth, ME
Internal Medicine (MD) in Ellsworth, Maine, trained at University of California, San Francisco School of Medicine (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $740,842 for 6,121 claims, against $23,061 paid for services in 2024.
Overview
| NPI | 1124067194 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 5, 2006 |
| Last updated in NPPES | Jan 20, 2021 |
| Certified by provider | Jan 20, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD13915 | ME |
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 - Internal Medicine (ME) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 217 |
|---|---|
| Services billed | 713 across 15 procedure codes |
| Paid by Medicare | $23,061 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,121 · 14,181 30-day fills |
|---|---|
| Patients | 467 |
| Total drug cost | $740,842 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Maine Coast Regional Health FacilitiesEllsworth, ME · 66 clinicians
Hospital affiliations
- Mount Desert Island HospitalBar Harbor, ME
- Northern Light Blue Hill Memorial HospitalBlue Hill, ME
- Northern Light Eastern Maine Medical CenterBangor, ME
- Northern Light Maine Coast HospitalEllsworth, ME
- St Joseph HospitalBangor, ME
Other facilities
- Centerwell Home HealthHome health agency · Bangor, ME
- Northern Light Home Care & HospiceHome health agency · So Portland, ME
- Northern Light Home Care & HospiceHospice · South Portland, ME
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine providers in Ellsworth
- 1598152035
- 1841230588
- 1033341813
- 1447283981
- 1053391300
- 1790037620
- 1538140520
- 1942249842
- 1922028976
- 1629017553