Dr. Aaron W. Aday, M.D.
Cardiology (Cardiovascular Disease Physician)
- Medicare participating
At a glance
- Medical school
- Yale University School of Medicine (2010)
- Years since graduation
- 16
- In the NPI registry since
- 2010
- Medicare patients seen, 2024
- 506
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
- 2010Medical school: Yale University School of Medicine
- 2010Registered with an NPI (national billing number; not a license date)
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
-
Cardiovascular Disease Physician primary
TN license MD57667 -
Internal Medicine Physician
MA license 244565
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Vanderbilt University Medical Center Nashville, TN
- Vanderbilt Wilson County Hospital Lebanon, TN
- Vanderbilt Tullahoma-Harton Hospital Tullahoma, TN
Medical groups
- Vanderbilt University Medical Center (3,567 clinicians)
- Owensboro Health, Inc (189 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
- 506
- Services billed
- 687
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Ultrasound of both sides of head and neck blood flow | 121 | 120 |
| Ultrasound study of arm and leg arteries | 107 | 101 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | 90 | 90 |
| Established patient office or other outpatient visit, 20-29 minutes | 75 | 67 |
| Ultrasound of one leg arteries or artery grafts | 52 | 49 |
| Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts | 27 | 25 |
| Established patient office or other outpatient visit, 30-39 minutes | 22 | 21 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 22 | 22 |
| Ultrasound of hemodialysis access | 21 | 19 |
| Ultrasound study of arm or leg veins with compression and maneuvers | 16 | 14 |
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
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, 3 companies reported 20 payments worth $12,956 in total to this clinician.
| Merck Sharp & Dohme LLC | $10,792 |
|---|---|
| Tactile Systems Technology Inc | $2,141 |
| Boston Scientific Corporation | $23.60 |
| Consulting Fee | $8,640 |
|---|---|
| Compensation for services other than consulting (speaking, faculty) | $2,000 |
| Travel and Lodging | $1,712 |
| Food and Beverage | $605 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Merck Sharp & Dohme LLC Oct 8, 2025 | Consulting Fee | $5,760 |
| Merck Sharp & Dohme LLC Nov 24, 2025 | Consulting Fee | $2,880 |
| Tactile Systems Technology Inc Jul 17, 2025 | Compensation for services other than consulting (speaking, faculty) FLEXITOUCH PLUS; NIMBL · PNEUMATIC COMPRESSOR Company’s descriptionJUNE 24 2025 LIPEDEMA PRESENTATION | $2,000 |
| Merck Sharp & Dohme LLC Nov 11, 2025 | Travel and Lodging CARDIOVASCULAR · travel to New Orleans, LA · in-kind | $306 |
| Merck Sharp & Dohme LLC Sep 25, 2025 | Travel and Lodging CARDIOVASCULAR · travel to Philadelphia, PA · in-kind | $301 |
| Merck Sharp & Dohme LLC Sep 26, 2025 | Travel and Lodging CARDIOVASCULAR · travel to Philadelphia, PA · in-kind | $279 |
| Merck Sharp & Dohme LLC Nov 10, 2025 | Travel and Lodging CARDIOVASCULAR · travel to New Orleans, LA · in-kind | $199 |
| Merck Sharp & Dohme LLC Sep 25, 2025 | Travel and Lodging CARDIOVASCULAR · travel to Philadelphia, PA · in-kind | $165 |
| Merck Sharp & Dohme LLC Sep 26, 2025 | Travel and Lodging CARDIOVASCULAR · travel to Philadelphia, PA · in-kind | $161 |
| Merck Sharp & Dohme LLC Oct 8, 2025 | Travel and Lodging travel to Philadelphia, PA | $150 |
All 11 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Merck Sharp & Dohme LLC Nov 24, 2025 | Consulting Fee | $2,880 |
| Merck Sharp & Dohme LLC Nov 24, 2025 | Travel and Lodging travel to New Orleans, LA | $150 |
| Merck Sharp & Dohme LLC Nov 11, 2025 | Travel and Lodging CARDIOVASCULAR · travel to New Orleans, LA · in-kind | $306 |
| Merck Sharp & Dohme LLC Nov 10, 2025 | Travel and Lodging CARDIOVASCULAR · travel to New Orleans, LA · in-kind | $199 |
| Merck Sharp & Dohme LLC Oct 8, 2025 | Consulting Fee | $5,760 |
| Merck Sharp & Dohme LLC Oct 8, 2025 | Travel and Lodging travel to Philadelphia, PA | $150 |
| Merck Sharp & Dohme LLC Sep 26, 2025 | Travel and Lodging CARDIOVASCULAR · travel to Philadelphia, PA · in-kind | $279 |
| Merck Sharp & Dohme LLC Sep 26, 2025 | Travel and Lodging CARDIOVASCULAR · travel to Philadelphia, PA · in-kind | $161 |
| Merck Sharp & Dohme LLC Sep 25, 2025 | Travel and Lodging CARDIOVASCULAR · travel to Philadelphia, PA · in-kind | $301 |
| Merck Sharp & Dohme LLC Sep 25, 2025 | Travel and Lodging CARDIOVASCULAR · travel to Philadelphia, PA · in-kind | $165 |
| Tactile Systems Technology Inc Jul 17, 2025 | Compensation for services other than consulting (speaking, faculty) FLEXITOUCH PLUS; NIMBL · PNEUMATIC COMPRESSOR Company’s descriptionJUNE 24 2025 LIPEDEMA PRESENTATION | $2,000 |
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 $15,789 in research payments for these studies, mostly to the institutions running them.
- A randomized, placebo-controlled, parallel-group, investigator- and participant-blind Phase 2a study to investigate the efficacy, safety, and tolerability of DFV890 and MAS825 for inflammatory marker reduction in an a…
Novartis Pharmaceuticals Corporation
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.