Dr. James Williard Dennis, MD
- Medicare services, 2024
- 170
- Medicare patients, 2024
- 155
- Part D claims, 2024
- 41
- Publications
- 189
- MIPS score, 2024
- 60
- Practice address
- 653 8th W St, Jacksonville, FL 32209
- Practice phone
- Call (904) 244-3500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University of Florida Jacksonville Physicians, Inc.
Jacksonville, Florida
Find Dr. Dennis' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. James Williard Dennis is a vascular surgeon in Jacksonville, Florida
Dr. Dennis practices at University of Florida Jacksonville Physicians, Inc. in Jacksonville, Florida.
Dr. Dennis' NPI, 1760455828, was assigned on February 9, 2006. Dr. Dennis graduated from Indiana University School Of Medicine in 1980. Dr. Dennis holds Florida license ME52194.
- NPI
- 1760455828NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688858400
- NPI enumeration date
- February 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (904) 244-3500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James Williard Dennis practices at University of Florida Jacksonville Physicians, Inc. in Jacksonville, Florida
Dr. Dennis' primary practice is University of Florida Jacksonville Physicians, Inc., at 653 8th W St, Jacksonville, FL 32209 in Duval County. The practice phone is (904) 244-3500.
- University of Florida Jacksonville Physicians, Inc.653 8th W St, Jacksonville, FL 32209 · Duval CountyPhone(904) 244-3500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. James Williard Dennis is affiliated with 2 sites of care and 1 medical group
Dr. Dennis' primary practice is University of Florida Jacksonville Physicians, Inc. in Jacksonville, Florida. Dr. Dennis is also affiliated with UF Health Jacksonville. The medical group on file is UF Jacksonville Physicians, Inc.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. James Williard Dennis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dennis practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Florida Jacksonville Physicians, Inc. | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Williard Dennis is one of 337 vascular surgeons in Florida
Vascular surgery is Dr. Dennis' primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dr. Dennis is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Dennis' licenses on file in 2 states: Florida and Illinois.
Specialties and state licenses
- Vascular surgery, FloridaPrimary
- Illinois license
Clinical focus
Dmand AI lists arterial blot clot /embolism, blood vessel access for dialysis, carotid revascularization, chronic skin ulcer, deep vein thrombosis (DVT), heart device and aorta surgery, peripheral vascular disease and varicose veins among the conditions Dr. Dennis treats.
Vascular surgeons near Dr. Dennis
Counts of vascular surgeons 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. James Williard Dennis billed Medicare for 170 services in 2024
CMS data shows 170 Medicare services from Dr. Dennis across 7 procedure codes in 2024, for 155 Medicare patients. Medicare paid $7,382 for them.
Dr. Dennis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 812024: 10125%
- Tests and treatments
- 2023: 822024: 6916%
Where Dr. Dennis' Medicare services took place, 2024
- In an office3822%
- In a facility13278%
Dr. Dennis compared with the Florida median for vascular surgeons, 2024
- Dr. Dennis
- Florida median
- Medicare services
- 170vs 67875% below
- Medicare patients
- 155vs 29648% below
- Part D claims
- 17vs 8881% below
Medians across 320 vascular surgeons in Florida with Dmand AI profiles that report each measure.
Dr. Dennis' 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dennis and other vascular surgeons in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James Williard Dennis treated 155 Medicare patients in 2024, average age 70
CMS counts 155 Medicare patients who saw Dr. Dennis in 2024. The largest group is 65 to 74, with 62 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 40% are also on Medicaid. Their average risk score is 3.36, 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. Dennis' median patient age at 70, with 29% women.
Dr. Dennis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Dennis' Medicare patients by sex, 2024
- Women6240%
- Men9360%
Chronic conditions among Dr. Dennis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes62%
- Ischemic heart disease61%
- Chronic kidney disease57%
- Arthritis56%
- Heart failure45%
- Mood disorders41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dennis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women29%
- Men71%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James Williard Dennis wrote 41 Medicare Part D claims in 2024
In 2024, Dr. Dennis wrote 41 Medicare Part D claims for 13 patients. 90% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $145 in total drug cost. In 2021, CMS named 14 claims across 1 drug.
Dr. Dennis' Part D claims by kind of drug, 2024
- Generic37 claims90%
- Brand-name and other4 claims10%
Dr. Dennis' 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.
Part D claims for drugs CMS names, 2021 to 2024
- 2021
- 2024
- Claims for drugs CMS names
- 2021: 142024: 1721%
Drugs named by CMS: 1 in 2024, 1 in 2021.
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
Dr. James Williard Dennis scored 60 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 60 out of 100 for Dr. Dennis for performance year 2024, reported through an alternative payment model (APM). Dr. Dennis accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Dennis' MIPS scores, performance year 2024
- 60of 100Final score
- 59.9of 100Quality
- 0of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. James Williard Dennis has 189 publications on record
Dmand AI links 189 papers to Dr. Dennis, published from 2002 to 2023. 2014 was the busiest year, with 6. The most frequent topics are Cell Line, Molecular Sequence Data and N-Acetylglucosaminyltransferases. Dr. Dennis has published most often in Cancer Res. Dr. Dennis' most frequent co-authors are Michael Demetriou, MD, Henry C. Veldenz, MD and Jon Christian Allmon, MD.
Dr. Dennis' papers by year, 2013 to 2023
Topics Dr. Dennis writes about most
- Cell Line
- Molecular Sequence Data
- N-Acetylglucosaminyltransferases
- Glycosylation
- Neoplasm Metastasis
- Oligosaccharides
- Polysaccharides
- Tumor Cells, Cultured
Dr. Dennis' most frequent co-authors
- Michael Demetriou, MD15 shared papers
- Henry C. Veldenz, MD8 shared papers
- Jon Christian Allmon, MD3 shared papers
Recent publications by Dr. Dennis
See who Dr. Dennis researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Dennis works with, so you can find a warm path to the right vascular surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. James Williard Dennis received $7,198 in industry payments from 2016 to 2024
CMS Open Payments shows 57 general payments to Dr. Dennis from 4 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 76% of the total. W. L. Gore & Associates, Inc. paid the most, $4,617.
General payments to Dr. Dennis by program year, 2016 to 2024
General payments to Dr. Dennis by kind, 2016 to 2024
- Food and beverage$5,45776%
- Travel and lodging$1,74124%
Companies that paid Dr. Dennis the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James Williard Dennis has 1 award and honors on record
Dmand AI lists 1 award for Dr. Dennis.
Awards and honors for Dr. Dennis
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. James Williard Dennis graduated from Indiana University School Of Medicine
Dr. Dennis graduated from Indiana University School Of Medicine in 1980. Dr. Dennis is a member of ACS and SVS.
- Medical school
- Board certified in surgery
- Board certified in surgical critical care
- Board certified in vascular surgery
Source: Dmand AI Professional Profile Data
Dr. James Williard Dennis accepts plans from 17 insurance carriers
Dr. Dennis is in network with 17 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- Humana
- +9 more carriersWith a free account
Plan types Dr. Dennis accepts, by number of carriers
- PPO11
- Medicare9
- HMO7
- POS5
- EPO4
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. James Williard Dennis'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Dr. James Williard Dennis
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. James Williard Dennis' NPI number?
Dr. James Williard Dennis' NPI number is 1760455828. It was assigned on February 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James Williard Dennis?
Dr. James Williard Dennis is a vascular surgeon in Jacksonville, Florida. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).
Where does Dr. James Williard Dennis practice?
Dr. Dennis practices at 653 8th W St, Jacksonville, FL 32209. Dr. Dennis' primary practice is University of Florida Jacksonville Physicians, Inc. in Jacksonville, Florida.
What is Dr. James Williard Dennis' office phone number?
The practice phone on file for Dr. Dennis is (904) 244-3500.
What is Dr. James Williard Dennis' medical license number?
Dr. Dennis holds Florida license ME52194, one of the licenses on file in 2 states.
Which states has Dr. James Williard Dennis been licensed in?
Dmand AI has state licenses on file for Dr. Dennis in Florida (1988 to 2027) and Illinois (1982 to 1990).
Which hospitals is Dr. James Williard Dennis affiliated with?
Dr. Dennis is affiliated with UF Health Jacksonville.
What medical group is Dr. James Williard Dennis part of?
Dr. Dennis is linked to UF Jacksonville Physicians, Inc.
Does Dr. James Williard Dennis accept Medicare?
Yes. CMS data shows Dr. Dennis billed Medicare for 170 services in 2024, and Dr. Dennis accepts Medicare assignment.
What is Dr. James Williard Dennis' MIPS score?
Dr. Dennis' MIPS final score for performance year 2024 is 60 out of 100, reported through an alternative payment model (APM).
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. James Williard Dennis see?
CMS counts 155 Medicare patients who saw Dr. Dennis in 2024, with an average age of 70.
Is Dr. James Williard Dennis board certified?
Yes. Dr. Dennis is board certified in surgery by the American Board of Surgery.
What services does Dr. James Williard Dennis bill to Medicare?
In 2024, Dr. Dennis' most billed Medicare services were blood vessel study (93923), blood vessel study (93922) and hospital inpatient care (99232).
Where did Dr. James Williard Dennis go to medical school?
Dr. Dennis graduated from Indiana University School Of Medicine in 1980.
What drugs does Dr. James Williard Dennis prescribe most?
In 2024 Medicare Part D data, Dr. Dennis' most prescribed drugs by claims were Clopidogrel.
Has Dr. James Williard Dennis received payments from drug or device companies?
CMS Open Payments shows $7,198 in general payments to Dr. Dennis from 4 companies from 2016 to 2024. The largest total came from W. L. Gore & Associates, Inc.
How long has Dr. James Williard Dennis been practicing?
Dr. Dennis graduated from medical school in 1980, 46 years ago.
Does Dr. James Williard Dennis do research?
Dmand AI links 189 publications to Dr. Dennis, published from 2002 to 2023.
Who does Dr. James Williard Dennis publish with?
Dr. Dennis' most frequent co-authors are Michael Demetriou, MD (15 shared papers), Henry C. Veldenz, MD (8 shared papers) and Jon Christian Allmon, MD (3 shared papers).
What insurance does Dr. James Williard Dennis accept?
Dr. Dennis is in network with 17 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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