Dr. Mark Stark, MD

  • Jacksonville, FL
  • Gastroenterologist
NPI1629067400
Medicare services, 2024
30
Medicare patients, 2024
48
Part D claims, 2023
18
Publications
41
MIPS score, 2024
84
Practice address
4500 San Pablo Rd, Jacksonville, FL 32224
Practice phone
Call (904) 953-2000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mayo Clinic Hospital

Hospital · Jacksonville, Florida

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Dr. Mark Stark is a gastroenterologist in Jacksonville, Florida

Dr. Stark practices at Mayo Clinic Hospital in Jacksonville, Florida, part of Mayo Clinic.

Dr. Stark's NPI, 1629067400, was assigned on October 14, 2005. Dr. Stark graduated from WashU Medicine in 1983. Dr. Stark holds Florida license ME61416.

NPI and contact details
NPI enumeration date
October 14, 2005
NPI status
Active
Practice phone
(904) 953-2000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
59
Medical school graduation
1983

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mark Stark practices at Mayo Clinic Hospital in Jacksonville, Florida

Dr. Stark's primary practice is Mayo Clinic Hospital, at 4500 San Pablo Rd, Jacksonville, FL 32224 in Duval County. The practice phone is (904) 953-2000.

  • Mayo Clinic Hospital
    4500 San Pablo Rd, Jacksonville, FL 32224 · Duval CountyPhone(904) 953-2000

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mark Stark is affiliated with 1 site of care and 1 medical group

Dr. Stark's primary practice is Mayo Clinic Hospital in Jacksonville, Florida, part of Mayo Clinic. The medical group on file is Mayo Clinic Jacksonville.

Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Mark Stark's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stark practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Mayo Clinic HospitalAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Mark Stark is one of 1,364 gastroenterologists in Florida

Gastroenterology is Dr. Stark's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Stark is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Stark's licenses on file in 3 states: Florida, Minnesota and Illinois.

Specialties and state licenses

  • Gastroenterology, FloridaPrimaryLicense ME61416 · 1991 to 2026 · taxonomy 207RG0100X
  • Minnesota license1990 to 1998
  • Illinois license1985 to 1990

Clinical focus

Dmand AI lists colonoscopy, gastrointestinal bleeding and upper GI endoscopy among the conditions Dr. Stark treats.

Gastroenterologists near Dr. Stark

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

Dr. Mark Stark billed Medicare for 30 services in 2024

CMS data shows 30 Medicare services from Dr. Stark across 2 procedure codes in 2024, for 48 Medicare patients. Medicare paid $10,545 for them.

Medicare services, 202430
Medicare patients48
Paid by Medicare$10,545
Procedure codes2

Dr. Stark's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 1012024: 1981%
Surgery
2023: 2352024: 1195%
Other services
2023: 182024: 0100%
Office and hospital visits
2023: 472024: 0100%

Where Dr. Stark's Medicare services took place, 2024

  • In an office1963%
  • In a facility1137%

Dr. Stark compared with the Florida median for gastroenterologists, 2024

  • Dr. Stark
  • Florida median
Medicare services
30vs 58295% below
Medicare patients
48vs 32285% below
Part D claims
18vs 50296% below

Medians across 1,320 gastroenterologists in Florida with Dmand AI profiles that report each measure.

Dr. Stark'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.

See all procedures by Dr. Stark

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stark and other gastroenterologists in Florida.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mark Stark treated 48 Medicare patients in 2024, average age 73

CMS counts 48 Medicare patients who saw Dr. Stark in 2024. The largest group is 65 to 74, with 23 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.65, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Stark's median patient age at 78, with 57% women.

Medicare patients, 202448
Average age73
Average risk score1.65

Dr. Stark's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Stark's Medicare patients by sex, 2024

  • Women2042%
  • Men2858%

Chronic conditions among Dr. Stark's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis54%
  4. Ischemic heart disease52%
  5. Chronic kidney disease50%
  6. Diabetes46%
  7. Anxiety38%
  8. Atrial fibrillation31%

Share of Medicare patients with each condition. A patient can have several.

Dr. Stark's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 78

Patient panel by sex, all payers

  • Women57%
  • Men43%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Mark Stark wrote 18 Medicare Part D claims in 2023

In 2023, Dr. Stark wrote 18 Medicare Part D claims. They cover 1 drug, with $325 in total drug cost. In 2022, CMS named 61 claims across 3 drugs.

Part D claims, 202318
Drugs named by CMS1
Total drug cost$325

Dr. Stark's most prescribed drugs by claims, 2023

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 612023: 1870%

Drugs named by CMS: 1 in 2023, 3 in 2022.

See all prescribing by Dr. Stark

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

Dr. Mark Stark scored 84 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Stark for performance year 2024, reported as part of a group.

Dr. Stark's MIPS scores, performance year 2024

  • 84of 100Final score
  • 74.8of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 73of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Mark Stark has 41 publications on record

Dmand AI links 41 papers to Dr. Stark, published from 2007 to 2024. 2015 was the busiest year, with 4. The most frequent topics are Gastrointestinal Hemorrhage, Intestine, Small and Double-Balloon Enteroscopy. Dr. Stark has published most often in Gastrointest Endosc. Dr. Stark's most frequent co-authors are Frank Lukens, MD, Joseph L. Blackshear, MD and Dong Chen, MD, MS, PhD.

Papers41
Years published2007 to 2024

Dr. Stark's papers by year, 2008 to 2024

Topics Dr. Stark writes about most

  • Gastrointestinal Hemorrhage
  • Intestine, Small
  • Double-Balloon Enteroscopy
  • Capsule Endoscopy
  • Echocardiography
  • Endoscopy, Gastrointestinal
  • von Willebrand Factor
  • Arteriovenous Malformations

Dr. Stark's most frequent co-authors

Recent publications by Dr. Stark

See all 41 publications and co-authors

See who Dr. Stark researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Stark works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Mark Stark received $743 in industry payments from 2017 to 2022

CMS Open Payments shows 3 general payments to Dr. Stark from 2 drug and device companies from 2017 to 2022. Travel and lodging make up the largest share, 75% of the total. Covidien LP paid the most, $584.

General payments to Dr. Stark by program year, 2017 to 2022

General payments to Dr. Stark by kind, 2017 to 2022

$743in total
  • Travel and lodging$56075%
  • Food and beverage$18225%

Companies that paid Dr. Stark the most, 2017 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Stark

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Mark Stark has 1 award and honors on record

Dmand AI lists 1 award for Dr. Stark, most recently Regional Top Doctor in 2014.

Awards and honors for Dr. Stark

  1. 2014
    • Regional Top Doctor

Source: Dmand AI Professional Profile Data

Dr. Mark Stark graduated from WashU Medicine

Dr. Stark graduated from WashU Medicine in 1983.

  1. Medical schoolWashU Medicine
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Mark Stark accepts plans from 2 insurance carriers

Dr. Stark is in network with 2 carriers, including Excellus BlueCross BlueShield and DE State Medicaid. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • Excellus BlueCross BlueShield
  • DE State Medicaid

Plan types Dr. Stark accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicaid1
  4. Medicare1
  5. POS1
  6. PPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Mark Stark's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesClinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Mark Stark

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Mark Stark's NPI number?

Dr. Mark Stark's NPI number is 1629067400. It was assigned on October 14, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Mark Stark?

Dr. Mark Stark is a gastroenterologist in Jacksonville, Florida. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Mark Stark practice?

Dr. Stark practices at 4500 San Pablo Rd, Jacksonville, FL 32224. Dr. Stark's primary practice is Mayo Clinic Hospital in Jacksonville, Florida, part of Mayo Clinic.

What is Dr. Mark Stark's office phone number?

The practice phone on file for Dr. Stark is (904) 953-2000.

What is Dr. Mark Stark's medical license number?

Dr. Stark holds Florida license ME61416, one of the licenses on file in 3 states.

Which states has Dr. Mark Stark been licensed in?

Dmand AI has state licenses on file for Dr. Stark in Florida (1991 to 2026), Minnesota (1990 to 1998) and Illinois (1985 to 1990).

Which hospitals is Dr. Mark Stark affiliated with?

Dr. Stark practices at Mayo Clinic Hospital in Jacksonville, Florida.

What medical group is Dr. Mark Stark part of?

Dr. Stark is linked to Mayo Clinic Jacksonville.

Does Dr. Mark Stark accept Medicare?

Yes. CMS data shows Dr. Stark billed Medicare for 30 services in 2024.

What is Dr. Mark Stark's MIPS score?

Dr. Stark's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Mark Stark see?

CMS counts 48 Medicare patients who saw Dr. Stark in 2024, with an average age of 73.

Is Dr. Mark Stark board certified?

Yes. Dr. Stark is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Mark Stark bill to Medicare?

In 2024, Dr. Stark's most billed Medicare services were digestive system test (91110) and surgery: digestive system (44799).

Where did Dr. Mark Stark go to medical school?

Dr. Stark graduated from WashU Medicine in 1983.

What drugs does Dr. Mark Stark prescribe most?

In 2023 Medicare Part D data, Dr. Stark's most prescribed drugs by claims were Gavilyte-G.

Has Dr. Mark Stark received payments from drug or device companies?

CMS Open Payments shows $743 in general payments to Dr. Stark from 2 companies from 2017 to 2022. The largest total came from Covidien LP.

How long has Dr. Mark Stark been practicing?

Dr. Stark graduated from medical school in 1983, 43 years ago.

Does Dr. Mark Stark do research?

Dmand AI links 41 publications to Dr. Stark, published from 2007 to 2024.

Who does Dr. Mark Stark publish with?

Dr. Stark's most frequent co-authors are Frank Lukens, MD (11 shared papers), Joseph L. Blackshear, MD (5 shared papers) and Dong Chen, MD, MS, PhD (5 shared papers).

What insurance does Dr. Mark Stark accept?

Dr. Stark is in network with 2 carriers, including Excellus BlueCross BlueShield and DE State Medicaid. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

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