Dr. An H. Bui, M.D.
Internal Medicine (Internal Medicine Physician)
- Medicare participating
At a glance
- Medical school
- University of Virginia School of Medicine (2010)
- Years since graduation
- 16
- In the NPI registry since
- 2010
- Medicare patients seen, 2024
- 1,415
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: University of Virginia 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
-
Internal Medicine Physician primary
MA license 244564
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Bon Secours St Marys Hospital Richmond, VA
- Bon Secours St Francis Medical Center Midlothian, VA
- Bon Secours Memorial Regional Medical Center Mechanicsville, VA
- Rappahannock General Hospital Kilmarnock, VA
Medical groups
- Bon Secours St Marys Hospital of Richmond LLC (66 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
- 1,415
- Services billed
- 5,944
- Patients’ average age
- 77
| Service | Times | Patients |
|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 711 | 553 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | 323 | 201 |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | 274 | 85 |
| Established patient office or other outpatient visit, 30-39 minutes | 259 | 241 |
| Destruction of tissue of upper heart chamber through tube to treat abnormal heart rhythm | 226 | 115 |
| Established patient office or other outpatient visit, 40-54 minutes | 209 | 174 |
| Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | 189 | 95 |
| Programming of dual lead pacemaker system | 178 | 149 |
| New patient office or other outpatient visit, 60-74 minutes | 163 | 163 |
| Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days | 157 | 68 |
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 |
|---|---|
| Eliquis (apixaban) Other prescribers in Boston, MA | 437 |
| Metoprolol Succinate Other prescribers in Boston, MA | 366 |
| Amiodarone Hcl Other prescribers in Boston, MA | 209 |
| Metoprolol Tartrate Other prescribers in Boston, MA | 127 |
| Flecainide Acetate Other prescribers in Boston, MA | 118 |
| Carvedilol Other prescribers in Boston, MA | 71 |
| Xarelto (rivaroxaban) Other prescribers in Boston, MA | 71 |
| Amlodipine Besylate Other prescribers in Boston, MA | 66 |
| Mexiletine Hcl | 50 |
| Clopidogrel (clopidogrel bisulfate) Other prescribers in Boston, MA | 44 |
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, 14 companies reported 91 payments worth $11,885 in total to this clinician.
| Biosense Webster, Inc. | $9,658 |
|---|---|
| Boston Scientific Corporation | $812 |
| Medtronic, Inc. | $502 |
| Abbott Laboratories | $407 |
| Philips North America LLC | $94.34 |
| Zoll Services LLC (a/k/a Zoll Lifecor Corp) | $86.67 |
| Cardiva Medical, Inc. | $71.75 |
| Kestra Medical Technology Services, Inc. | $65.30 |
| Consulting Fee | $6,300 |
|---|---|
| Food and Beverage | $2,855 |
| Travel and Lodging | $2,730 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Biosense Webster, Inc. Dec 15, 2025 | Consulting Fee CARTO 3 · Cardiology | $6,300 |
| Biosense Webster, Inc. Dec 25, 2025 | Travel and Lodging CARTO 3 · Cardiology · travel to Irvine, CA · in-kind | $615 |
| Biosense Webster, Inc. Nov 4, 2025 | Travel and Lodging CARTO 3 · Cardiology · travel to Irvine, CA · in-kind | $477 |
| Biosense Webster, Inc. Aug 20, 2025 | Travel and Lodging CARTO 3 · Cardiology · travel to Boston, MA · in-kind | $400 |
| Biosense Webster, Inc. Dec 23, 2025 | Travel and Lodging CARTO 3 · Cardiology · travel to Irvine, CA · in-kind | $338 |
| Biosense Webster, Inc. Sep 3, 2025 | Travel and Lodging CARTO 3 · Cardiology · travel to Raynham, MA · in-kind | $271 |
| Biosense Webster, Inc. Sep 8, 2025 | Travel and Lodging CARTO 3 · Cardiology · travel to Raynham, MA · in-kind | $195 |
| Biosense Webster, Inc. Dec 6, 2025 | Travel and Lodging CARTO 3 · Cardiology · travel to Irvine, CA · in-kind | $164 |
| Biosense Webster, Inc. Aug 20, 2025 | Travel and Lodging CARTO 3 · Cardiology · travel to Boston, MA · in-kind | $153 |
| Biosense Webster, Inc. Sep 7, 2025 | Travel and Lodging CARTO 3 · Cardiology · travel to Raynham, MA · in-kind | $115 |
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.