Dr. Ryan P. Cronin, DO
Vascular Surgery (Vascular Surgery Physician)
- Medicare participating
At a glance
- Years since graduation
- 12
- In the NPI registry since
- 2014
- Medicare patients seen, 2024
- 316
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. What an NPI is
Education and training
- 2014Registered with an NPI (national billing number; not a license date)
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
-
Vascular Surgery Physician primary
NC license 2019-02931 · TN license 4815 -
Internal Medicine Physician
SC license LL36659
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Johnson City Medical Center Johnson City, TN
- Wellmont Holston Valley Medical Center Kingsport, TN
Medical groups
- Wellmont Cardiology Services (139 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
- 316
- Services billed
- 552
- Patients’ average age
- 76
| Service | Times | Patients |
|---|---|---|
| Ultrasound of both sides of head and neck blood flow | 91 | 90 |
| Ultrasound study of arm and leg arteries | 54 | 53 |
| New patient office or other outpatient visit, 45-59 minutes | 36 | 36 |
| Established patient office or other outpatient visit, 30-39 minutes | 35 | 26 |
| Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts | 22 | 22 |
| Established patient office or other outpatient visit, 40-54 minutes | 17 | 15 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 17 | 16 |
| Ultrasound of leg arteries at rest and after exercise | 12 | 12 |
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.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Cilostazol Other prescribers in Kingsport, TN | 177 |
| Clopidogrel (clopidogrel bisulfate) Other prescribers in Kingsport, TN | 155 |
| Xarelto (rivaroxaban) Other prescribers in Kingsport, TN | 43 |
| Rosuvastatin Calcium Other prescribers in Kingsport, TN | 16 |
| Eliquis (apixaban) Other prescribers in Kingsport, TN | 15 |
| Enoxaparin Sodium Other prescribers in Kingsport, TN | 13 |
| Pentoxifylline Other prescribers in Kingsport, TN | 13 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 11 companies reported 52 payments worth $1,748 in total to this clinician.
| Cook Medical LLC | $833 |
|---|---|
| Atricure, Inc. | $231 |
| Endologix LLC | $202 |
| Medtronic, Inc. | $174 |
| Cook Incorporated | $113 |
| Shockwave Medical, Inc | $80.11 |
| Surmodics, Inc. | $32.05 |
| Abbott Laboratories | $24.20 |
| Food and Beverage | $1,389 |
|---|---|
| Travel and Lodging | $359 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Cook Medical LLC Nov 3, 2025 | Travel and Lodging ZENITH ALPHA · Aortic Intervention · travel to Indianapolis, IN | $281 |
| Cook Incorporated Dec 17, 2025 | Travel and Lodging ZENITH ALPHA · Aortic Intervention · travel to Indianapolis, IN | $78.46 |
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.