Thomas M. O'Brien, M.D.
NPI 1003844366ActiveIndividual· Internal Medicine, Advanced Heart Failure and Transplant Cardiology· Liberty Township, OH
Internal Medicine, Advanced Heart Failure and Transplant Cardiology (M.D.) in Liberty Township, Ohio, trained at University of Rochester School of Medicine and Dentistry (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $1,627,140 for 8,038 claims, against $79,259 paid for services in 2024. Atricure, Inc. was the largest of 2 companies reporting payments in 2025, $42.69 in all, mostly food and beverage.
Overview
| NPI | 1003844366 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 28, 2006 |
| Last updated in NPPES | Jun 21, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Advanced Heart Failure and Transplant Cardiology Primary | 207RA0001X | 35082223 | OH |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 35082223O | OH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Advanced Heart Failure and Transplant Cardiology (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 585 |
|---|---|
| Services billed | 1,389 across 37 procedure codes |
| Paid by Medicare | $79,259 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,038 · 20,016 30-day fills |
|---|---|
| Patients | 1,037 |
| Total drug cost | $1,627,140 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | University of Rochester School of Medicine and Dentistry |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Advanced Heart Failure And Transplant Cardiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
Medical group
- The Christ Hospital Cardiovascular Associates LLCCincinnati, OH · 152 clinicians
Hospital affiliations
- Bethesda NorthCincinnati, OH
- Christ HospitalCincinnati, OH
- Fort Hamilton Hughes Memorial HospitalHamilton, OH
Other facilities
- The Christ Hospital Home Health CareHome health agency · Mason, OH
Industry payments (Open Payments)
- 2025$42.69 · 2 payments from 2 companies
- 2024$2,304 · 9 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Atricure, Inc. | $26.93 | 1 |
| Chiesi USA, Inc. | $15.76 | 1 |
What the 2025 payments were for
- Food and Beverage$42.69 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records