Dr. Mark I. Block, MD
Cardiothoracic Surgery (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician)
- Medicare participating
At a glance
- Medical school
- Yale University School of Medicine (1987)
- Years since graduation
- 39
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 245
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
- 1987Medical school: Yale University School of Medicine
- 2005Registered 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
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Boca Raton Regional Hospital Boca Raton, FL
- Memorial Regional Hospital Hollywood, FL
- Memorial Hospital West Pembroke Pines, FL
- Memorial Hospital Miramar Miramar, FL
- Memorial Hospital Pembroke Pembroke Pines, FL
Medical groups
- South Broward Hospital District (674 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
- 245
- Services billed
- 518
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 131 | 61 |
| Established patient office or other outpatient visit, 20-29 minutes | 83 | 59 |
| Established patient office or other outpatient visit, 10-19 minutes | 73 | 63 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 37 | 37 |
| New patient office or other outpatient visit, 60-74 minutes | 37 | 37 |
| Established patient office or other outpatient visit, 30-39 minutes | 20 | 19 |
| Diagnostic exam of lung airway using an endoscope | 18 | 18 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 17 | 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.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Gabapentin Other prescribers in Hollywood, FL | 25 |
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 6 payments worth $1,959 in total to this clinician.
| Pleural Dynamics Inc. | $1,926 |
|---|---|
| Tempus Ai, Inc | $18.12 |
| Intuitive Surgical, Inc. | $15.00 |
| Travel and Lodging | $1,309 |
|---|---|
| Food and Beverage | $530 |
| Gift | $120 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Pleural Dynamics Inc. Aug 28, 2025 | Travel and Lodging Automatic Continuous Effusion Shunt (ACES) System · pleural-peritoneal shunt · travel to Wayzata, MN | $1,309 |
| Pleural Dynamics Inc. Aug 14, 2025 | Gift Automatic Continuous Effusion Shunt (ACES) System · pleural-peritoneal shunt | $120 |
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 2 industry-funded studies in 2025, from 2 companies. The companies reported $47,373 in research payments for these studies, mostly to the institutions running them.
- The ACES Study for Aseptic Pleural Effusion
Pleural Dynamics Inc. · Active, not recruiting · NCT06210685 - Prospective Randomized Trial of Intrapleural Fibrinolytic Therapy to Enhance Chemical Pleurodesis
Genentech, Inc.
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.