Dr. Liam P. Ryan, MD
Cardiothoracic Surgery (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician)
- Medicare participating
At a glance
- Years since graduation
- 24
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 167
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician primary
VA license 0101255513 -
Surgery Physician
MA license L-214641
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Inova Fairfax Hospital Falls Church, VA
Medical groups
- Inova Health Care Services (1,817 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 167
- Services billed
- 330
- Patients’ average age
- 77
| Service | Times | Patients |
|---|---|---|
| Replacement of aortic valve through the skin and femoral artery | 88 | 88 |
| Exposure of underarm or upper chest artery with creation of conduit | 26 | 26 |
| Repair of ascending aorta with graft on heart-lung machine with valve suspension for aortic disease | 25 | 25 |
| Replacement of aortic valve on heart-lung machine | 16 | 16 |
| Repair of aortic arch with graft | 15 | 15 |
| Exposure of groin artery for delivery of graft | 13 | 13 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 3 companies reported 5 payments worth $2,217 in total to this clinician.
| Bolton Medical Inc | $2,164 |
|---|---|
| Zoll Services LLC (a/k/a Zoll Lifecor Corp) | $33.26 |
| Supreme Orthopedic Systems, LLC | $19.92 |
| Consulting Fee | $2,100 |
|---|---|
| Food and Beverage | $117 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Bolton Medical Inc May 21, 2025 | Consulting Fee TREO ABDOMINAL STENT-GRAFT SYSTEM · ENDOVASCULAR AORTIC REPAIR | $2,100 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 1 industry-funded study in 2025, from 1 company. The companies reported $1,250 in research payments for these studies, mostly to the institutions running them.
- Evaluation of the GORE® Ascending Stent Graft
W. L. Gore & Associates, Inc. · Enrolling by invitation · NCT05800743
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.