Mark S. Dawson
- Medicare services, 2024
- 6,801
- Medicare patients, 2024
- 633
- Part D claims, 2024
- 1,755
- Hospital affiliations
- 4
- Industry payments
- $11,186
- Practice address
- 2776 Cleveland Ave, Fort Myers, FL 33901
- Practice phone
- Call (239) 343-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Mark Dawson's professional email, personal email and mobile number
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Mark S. Dawson is a gastroenterologist in Fort Myers, Florida
Mark Dawson practices at Lee Memorial Hospital in Fort Myers, Florida, part of Lee Health System.
Mark Dawson's NPI, 1457322133, was assigned on January 30, 2006. Mark Dawson graduated from University of Illinois College of Medicine - Chicago in 1987. Mark Dawson holds Florida license ME0064729.
- NPI
- 1457322133NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678625969
- NPI enumeration date
- January 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (239) 343-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark S. Dawson practices at Lee Memorial Hospital in Fort Myers, Florida
Mark Dawson's primary practice is Lee Memorial Hospital, at 2776 Cleveland Ave, Fort Myers, FL 33901 in Lee County. The practice phone is (239) 343-5000.
- Lee Memorial Hospital2776 Cleveland Ave, Fort Myers, FL 33901 · Lee CountyPhone(239) 343-5000
Source: Dmand AI Affiliation Data
Mark S. Dawson is affiliated with 5 sites of care and 4 medical groups
Mark Dawson's primary practice is Lee Memorial Hospital in Fort Myers, Florida, part of Lee Health System. Mark Dawson is also affiliated with Gulf Coast Medical Center. The medical group on file is Lee Physician Group. Dmand AI also links Mark Dawson to 2 more hospitals, 3 medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mark S. Dawson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Dawson practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lee Memorial Hospital | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Lee Health System and 6.2K+ hospitals, with verified contacts in the same login.
Mark S. Dawson is one of 1,364 gastroenterologists in Florida
Gastroenterology is Mark Dawson's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Mark Dawson is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Mark Dawson's licenses on file in 3 states: Florida, Illinois and Texas.
Specialties and state licenses
- Gastroenterology, FloridaPrimary
- Illinois license
- Texas license
Clinical focus
Dmand AI lists acid reflux, chronic inflammatory bowel disease (IBD), colonoscopy, fatty liver, gastrointestinal bleeding, hemorrhoids, intestinal diverticulosis and irritable bowel syndrome (IBS) among the conditions Mark Dawson treats.
Gastroenterologists near Mark Dawson
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Mark S. Dawson billed Medicare for 6,801 services in 2024
CMS data shows 6,801 Medicare services from Mark Dawson across 18 procedure codes in 2024, for 633 Medicare patients. Medicare paid $220,348 for them.
Mark Dawson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 13,5002024: 5,70058%
- Office and hospital visits
- 2023: 6622024: 56814%
- Surgery
- 2023: 6372024: 44131%
- Other services
- 2023: 752024: 707%
- Tests and treatments
- 2023: 622024: 2265%
- Imaging
- 2023: 362024: 0100%
Where Mark Dawson's Medicare services took place, 2024
- In an office6,12390%
- In a facility67810%
Mark Dawson compared with the Florida median for gastroenterologists, 2024
- Mark Dawson
- Florida median
- Medicare services
- 6,801vs 58211.7 times
- Medicare patients
- 633vs 32297% above
- Part D claims
- 1,571vs 5023.1 times
Medians across 1,320 gastroenterologists in Florida with Dmand AI profiles that report each measure.
Mark Dawson's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Mark Dawson?
Medicare shows one payer. Book a meeting to get commercial claims data for Mark Dawson and other gastroenterologists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Mark S. Dawson treated 633 Medicare patients in 2024, average age 74
CMS counts 633 Medicare patients who saw Mark Dawson in 2024. The largest group is 65 to 74, with 307 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.56, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Mark Dawson's median patient age at 67, with 48% women.
Mark Dawson's Medicare patients by age, 2024
Mark Dawson's Medicare patients by sex, 2024
- Women31349%
- Men32051%
Chronic conditions among Mark Dawson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease41%
- Chronic kidney disease34%
- Mood disorders33%
- Anxiety31%
- Depression30%
Share of Medicare patients with each condition. A patient can have several.
Mark Dawson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mark S. Dawson wrote 1,755 Medicare Part D claims in 2024
In 2024, Mark Dawson wrote 1,755 Medicare Part D claims for 535 patients. 86% of them were for generic drugs. CMS names the drug for 1,571 of them, across 18 drugs with 11 or more claims each, at $256,575 in total drug cost. In 2023, CMS named 1,568 claims across 19 drugs.
Mark Dawson's Part D claims by kind of drug, 2024
- Generic1,515 claims86%
- Brand-name240 claims14%
Mark Dawson's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Mark Dawson's Part D claims, 2024
- Antibiotics4%77 of 1,755 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,5682024: 1,571No change
Drugs named by CMS: 18 in 2024, 19 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Mark S. Dawson ranks in the 81st percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Mark Dawson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 126 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Mark Dawson, more than 81% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Mark Dawson ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 81st percentile126 procedures
- Colonoscopy
- 73rd percentile77 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Mark S. Dawson received $11,186 in industry payments from 2016 to 2025
CMS Open Payments shows 573 general payments to Mark Dawson from 43 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Abbvie Inc. paid the most, $3,600.
General payments to Mark Dawson by program year, 2016 to 2025
General payments to Mark Dawson by kind, 2016 to 2025
- Food and beverage$10,99798%
- Education$1892%
Companies that paid Mark Dawson the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mark S. Dawson has 1 award and honors on record
Dmand AI lists 1 award for Mark Dawson.
Awards and honors for Mark Dawson
- Undated
- Clinical Adjunct Associate Professor
Source: Dmand AI Professional Profile Data
Mark S. Dawson graduated from University of Illinois College of Medicine - Chicago
Mark Dawson graduated from University of Illinois College of Medicine - Chicago in 1987.
- Medical school
- Board certified in gastroenterology
- Board certified in addiction medicine
Source: Dmand AI Professional Profile Data
Mark S. Dawson accepts plans from 10 insurance carriers
Mark Dawson is in network with 10 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- Cigna
- Humana
- Blue Cross Blue Shield of Massachusetts
- HCSC
- +2 more carriersWith a free account
Plan types Mark Dawson accepts, by number of carriers
- Medicare10
- PPO9
- HMO6
- POS4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Mark S. Dawson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Mark S. Dawson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark S. Dawson's NPI number?
Mark S. Dawson's NPI number is 1457322133. It was assigned on January 30, 2006, and it is active in the NPI Registry.
What does Mark S. Dawson specialize in?
Mark S. Dawson is a gastroenterologist in Fort Myers, Florida. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Mark S. Dawson practice?
Mark Dawson practices at 2776 Cleveland Ave, Fort Myers, FL 33901. Mark Dawson's primary practice is Lee Memorial Hospital in Fort Myers, Florida, part of Lee Health System. Dmand AI also links Mark Dawson to 2 hospitals, 3 medical groups and 1 group practice or clinic.
What is Mark S. Dawson's office phone number?
The practice phone on file for Mark Dawson is (239) 343-5000.
What is Mark S. Dawson's medical license number?
Mark Dawson holds Florida license ME0064729, one of the licenses on file in 3 states.
Which states has Mark S. Dawson been licensed in?
Dmand AI has state licenses on file for Mark Dawson in Florida (1993 to 2027), Illinois (1987 to 1996) and Texas (1994 to 1995).
Which hospitals is Mark S. Dawson affiliated with?
Mark Dawson practices at Lee Memorial Hospital in Fort Myers, Florida. Mark Dawson is also affiliated with Gulf Coast Medical Center. Dmand AI links Mark Dawson to 2 more hospitals.
What medical group is Mark S. Dawson part of?
Mark Dawson is linked to Lee Physician Group. Dmand AI links Mark Dawson to 3 more medical groups.
Does Mark S. Dawson accept Medicare?
Yes. CMS data shows Mark Dawson billed Medicare for 6,801 services in 2024, and Mark Dawson accepts Medicare assignment.
How many Medicare patients does Mark S. Dawson see?
CMS counts 633 Medicare patients who saw Mark Dawson in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
Is Mark S. Dawson board certified?
Yes. Mark Dawson is board certified in gastroenterology by the American Board of Internal Medicine.
What services does Mark S. Dawson bill to Medicare?
In 2024, Mark Dawson's most billed Medicare services were injected or infused drug (J3380), surgery: digestive system (43239) and office visit, established patient (99214).
Where did Mark S. Dawson go to medical school?
Mark Dawson graduated from University of Illinois College of Medicine - Chicago in 1987.
What drugs does Mark S. Dawson prescribe most?
In 2024 Medicare Part D data, Mark Dawson's most prescribed drugs by claims were Pantoprazole Sodium, Linzess and Omeprazole.
Has Mark S. Dawson received payments from drug or device companies?
CMS Open Payments shows $11,186 in general payments to Mark Dawson from 43 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Mark S. Dawson been practicing?
Mark Dawson graduated from medical school in 1987, 39 years ago.
What insurance does Mark S. Dawson accept?
Mark Dawson is in network with 10 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
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