Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark I Block, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1720071228

Mark I Block, MD practises Thoracic Surgery in Hollywood, Florida. Graduated from Yale University School of Medicine in 1987, 39 years ago. Practices with South Broward Hospital District, a 665-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Florida.

Years since qualifying
39
Trained at
Yale University School of Medicine
Licensed in
FL
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1150 N 35th Ave Ste 660
Hollywood, FL 33021-5471
Phone: (954) 265-1125
Fax: (954) 985-5578
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 601 N Flamingo Rd Ste 316, Pembroke Pines, FL 33028-1015 — (954) 844-2320

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence ME91707 (FL)

Record details

NPI number1720071228
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 30, 2005
Last updated in NPPESMarch 16, 2021
Certification dateMarch 16, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyTHORACIC SURGERY
Medical schoolYALE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
Group practice South Broward Hospital District — 665 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Upper gastrointestinal (GI) endoscopy for acid reflux 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients245
Services billed 518 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $1,309 1 payment · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $530 4 payments · a meal or drink at a meeting or visit, not a fee
Gift $120 1 payment

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Memorial Hospital Pembroke Hospital · Pembroke Pines, FL · listed as South Broward Hospital District
  • Memorial Hospital Miramar Hospital · Miramar, FL
  • Memorial Hospital West Hospital · Pembroke Pines, FL
  • Memorial Regional Hospital Hospital · Hollywood, FL

Colleagues at South Broward Hospital District

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 665 clinicians in the practice; 12 are shown here.

Other providers in Hollywood