Dr. Michael S. Firstenberg, MD
Cardiothoracic Surgery (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician)
1444 S Potomac St Ste 200
Aurora, CO 80012
Who else practices at this address →
Arapahoe County includes primary care (8% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Years since graduation
- 30
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 30
Licensed in Colorado since 2017, according to the Colorado Department of Regulatory Agencies. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
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
- 2006Registered 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
CO license 0059627 (first issued 2017; transferred to compact physician) · ID license 5371563 · NV license 22431 · OH license 35074025
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Saint Alphonsus Regional Medical Center Boise, ID
- Maui Memorial Medical Center Wailuku, HI
Medical groups
- Saint Alphonsus Regional Medical Center Inc (680 clinicians)
- Monument Health Rapid City Hospital Inc (564 clinicians)
- Ryan M Smith Do Inc (7 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
- 30
- Services billed
- 74
- Patients’ average age
- 75
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, 7 companies reported 32 payments worth $2,813 in total to this clinician.
| Abiomed | $1,487 |
|---|---|
| Medtronic, Inc. | $767 |
| Bolton Medical Inc | $247 |
| Intuitive Surgical, Inc. | $117 |
| Tela Bio, Inc. | $102 |
| Lsi Solutions Inc | $77.21 |
| Boston Scientific Corporation | $16.23 |
| Food and Beverage | $2,518 |
|---|---|
| Consulting Fee | $295 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Medtronic, Inc. Feb 21, 2025 | Consulting Fee SURGIDAC · Wound Closure | $265 |
| Medtronic, Inc. Mar 29, 2025 | Consulting Fee EEA · Surgical Stapling | $30.00 |
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.