Dr. Michael A. Acker, MD
Cardiothoracic Surgery (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician)
- Medicare participating
At a glance
- Medical school
- Warren Alpert Medical School of Brown University (1981)
- Years since graduation
- 45
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 212
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
- 1981Medical school: Warren Alpert Medical School of Brown University
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
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
PA license MD028148E
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Hospital of Univ of Pennsylvania Philadelphia, PA
- Christiana Hospital Newark, DE
- Wilkes-Barre General Hospital Wilkes-Barre, PA
Medical groups
- University of Penn - Medical Group (3,505 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
- 212
- Services billed
- 525
- Patients’ average age
- 73
| Service | Times | Patients |
|---|---|---|
| New patient office or other outpatient visit, 60-74 minutes | 123 | 123 |
| Replacement of mitral valve on heart-lung machine | 44 | 42 |
| Established patient office or other outpatient visit, 20-29 minutes | 35 | 33 |
| Coronary artery bypass using artery graft, 1 graft | 35 | 35 |
| Coronary artery bypass or valve procedure reoperation more than 1 month after original operation | 23 | 22 |
| Replacement of aortic valve on heart-lung machine | 22 | 22 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 20 | 19 |
| Coronary artery bypass using vein or artery graft, 2 grafts | 15 | 15 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 15 | 14 |
| Radical reconstruction of mitral valve on heart-lung machine | 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 16 payments worth $14,694 in total to this clinician.
| Edwards Lifesciences Corporation | $13,974 |
|---|---|
| Abbott Laboratories | $612 |
| Cook Medical LLC | $108 |
| Consulting Fee | $10,638 |
|---|---|
| Travel and Lodging | $3,520 |
| Food and Beverage | $536 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Edwards Lifesciences Corporation Dec 23, 2025 | Consulting Fee | $5,750 |
| Edwards Lifesciences Corporation Feb 27, 2025 | Consulting Fee | $4,025 |
| Edwards Lifesciences Corporation Sep 15, 2025 | Travel and Lodging MITRIS RESILIA Mitral Valve · Pericardial Heart Valves · travel to Irvine, CA · in-kind | $2,008 |
| Edwards Lifesciences Corporation May 22, 2025 | Consulting Fee | $863 |
| Abbott Laboratories Dec 31, 2025 | Travel and Lodging TENDYNE · Structural Heart · travel to Minnetonka, MN · in-kind | $603 |
| Edwards Lifesciences Corporation Nov 14, 2025 | Travel and Lodging travel to Irvine, CA · in-kind | $361 |
| Edwards Lifesciences Corporation Dec 1, 2025 | Travel and Lodging travel to Irvine, CA · in-kind | $286 |
| Edwards Lifesciences Corporation Nov 13, 2025 | Travel and Lodging MITRIS RESILIA Mitral Valve · Pericardial Heart Valves · travel to Irvine, CA · in-kind | $252 |
| Abbott Laboratories Dec 31, 2025 | Travel and Lodging TENDYNE · Structural Heart · travel to Minnetonka, MN · in-kind | $9.02 |
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.