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

Mark S Dawson

Individual provider Gastroenterology Physician · NPI 1457322133

Mark S Dawson practises Gastroenterology in Bradenton, Florida. Qualified in 1987, 39 years ago. Practices with Florida Digestive Health Specialists, LLP, a 86-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
39
Licensed in
FL
In the registry since
2006
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Practice location Address checks out

101 Riverfront Blvd Ste 700
Bradenton, FL 34205-8823
Phone: (941) 748-2417
Fax: (941) 748-3694
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 129 S Pebble Beach Blvd Ste 100, Sun City Center, FL 33573-5718 — (813) 634-9272

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence ME0064729 (FL)

Record details

NPI number1457322133
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJanuary 30, 2006
Last updated in NPPESFebruary 10, 2021
Certification dateFebruary 10, 2021

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1987 (39 years in practice)
Group practice Florida Digestive Health Specialists, Llp — 86 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 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 208 times · 91st percentile
Colonoscopy 132 times · 86th percentile

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 patients633
Services billed 8,299 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Food and Beverage $1,305 32 payments · a meal or drink at a meeting or visit, not a fee

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.

  • Cape Coral Hospital Hospital · Cape Coral, FL
  • Gulf Coast Medical Center Lee Health Hospital · Fort Myers, FL
  • Lee Memorial Hospital Hospital · Fort Myers, FL
  • Unc Health Nash Hospital · Rocky Mount, NC

Colleagues at Florida Digestive Health Specialists, LLP

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 86 clinicians in the practice; 12 are shown here.

Other providers in Bradenton