Dr. James Duncan Clark III, MD
- Medicare services, 2024
- 1,734
- Medicare patients, 2024
- 604
- Part D claims, 2024
- 817
- Publications
- 1
- Hospital affiliations
- 4
- Practice address
- 21298 Olean Blvd, Port Charlotte, FL 33952
- Practice phone
- Call (941) 629-1181
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Clark's 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 Duncan Clark III is a hospitalist in Port Charlotte, Florida
Dr. Clark practices at HCA Florida Fawcett Hospital in Port Charlotte, Florida, part of HCA Healthcare.
Dr. Clark's NPI, 1114421195, was assigned on March 22, 2018. Dr. Clark holds Florida license ME152112.
- NPI
- 1114421195NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395133102
- NPI enumeration date
- March 22, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (941) 629-1181
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James Duncan Clark III practices at HCA Florida Fawcett Hospital in Port Charlotte, Florida
Dr. Clark's primary practice is HCA Florida Fawcett Hospital, at 21298 Olean Blvd, Port Charlotte, FL 33952 in Charlotte County. The practice phone is (941) 629-1181.
- HCA Florida Fawcett Hospital21298 Olean Blvd, Port Charlotte, FL 33952 · Charlotte CountyPhone(941) 629-1181
Source: Dmand AI Affiliation Data
Dr. James Duncan Clark III is affiliated with 7 sites of care and 2 medical groups
Dr. Clark's primary practice is HCA Florida Fawcett Hospital in Port Charlotte, Florida, part of HCA Healthcare. Dr. Clark is also affiliated with AdventHealth Port Charlotte. The medical group on file is Millennium Physician Group. Dmand AI also links Dr. Clark to 2 more hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. James Duncan Clark III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Clark practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HCA Florida Fawcett Hospital | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Duncan Clark III is one of 1,637 hospitalists in Florida
Hospitalist is Dr. Clark's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Clark is licensed in Florida.
Specialties and state licenses
- Hospitalist, FloridaPrimary
Hospitalists near Dr. Clark
Counts of hospitalists 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 Duncan Clark III billed Medicare for 1,734 services in 2024
CMS data shows 1,734 Medicare services from Dr. Clark across 6 procedure codes in 2024, for 604 Medicare patients. Medicare paid $139,441 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Clark's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,6342024: 1,7346%
Dr. Clark compared with the Florida median for hospitalists, 2024
- Dr. Clark
- Florida median
- Medicare services
- 1,734vs 5433.2 times
- Medicare patients
- 604vs 2432.5 times
- Part D claims
- 503vs 1124.5 times
Medians across 1,516 hospitalists in Florida with Dmand AI profiles that report each measure.
Dr. Clark'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Clark and other hospitalists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James Duncan Clark III treated 604 Medicare patients in 2024, average age 79
CMS counts 604 Medicare patients who saw Dr. Clark in 2024. The largest group is 75 to 84, with 265 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 2.60, 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. Clark's median patient age at 77, with 52% women.
Dr. Clark's Medicare patients by age, 2024
Dr. Clark's Medicare patients by sex, 2024
- Women30651%
- Men29849%
Chronic conditions among Dr. Clark's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease64%
- Arthritis62%
- Chronic kidney disease62%
- COPD53%
- Mood disorders50%
- Atrial fibrillation49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Clark's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James Duncan Clark III wrote 817 Medicare Part D claims in 2024
In 2024, Dr. Clark wrote 817 Medicare Part D claims for 332 patients. 87% of them were for generic drugs. CMS names the drug for 503 of them, across 22 drugs with 11 or more claims each, at $19,827 in total drug cost. In 2023, CMS named 549 claims across 25 drugs.
Dr. Clark's Part D claims by kind of drug, 2024
- Generic714 claims87%
- Brand-name103 claims13%
Dr. Clark'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 Dr. Clark's Part D claims, 2024
- Opioids3%21 of 817 claims
- Antibiotics24%197 of 817 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: 5492024: 5038%
Drugs named by CMS: 22 in 2024, 25 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
How Dr. James Duncan Clark III takes part in Medicare
Dr. Clark accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. James Duncan Clark III has 1 publication on record
Dmand AI links 1 paper to Dr. Clark in 2011.
Recent publications by Dr. Clark
See who Dr. Clark researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Clark works with, so you can find a warm path to the right hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. James Duncan Clark III received $61 in industry payments from 2018 to 2021
CMS Open Payments shows 3 general payments to Dr. Clark from 3 drug and device companies from 2018 to 2021. Food and beverage make up the largest share, 100% of the total. Edwards Lifesciences Corporation paid the most, $23.
General payments to Dr. Clark by program year, 2018 to 2021
Companies that paid Dr. Clark the most, 2018 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. James Duncan Clark III'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) |
| 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) |
| 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 Duncan Clark III
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 Duncan Clark III's NPI number?
Dr. James Duncan Clark III's NPI number is 1114421195. It was assigned on March 22, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. James Duncan Clark III?
Dr. James Duncan Clark III is a hospitalist in Port Charlotte, Florida. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. James Duncan Clark III practice?
Dr. Clark practices at 21298 Olean Blvd, Port Charlotte, FL 33952. Dr. Clark's primary practice is HCA Florida Fawcett Hospital in Port Charlotte, Florida, part of HCA Healthcare. Dmand AI also links Dr. Clark to 2 hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group.
What is Dr. James Duncan Clark III's office phone number?
The practice phone on file for Dr. Clark is (941) 629-1181.
What is Dr. James Duncan Clark III's medical license number?
Dr. Clark holds Florida license ME152112.
Which hospitals is Dr. James Duncan Clark III affiliated with?
Dr. Clark practices at HCA Florida Fawcett Hospital in Port Charlotte, Florida. Dr. Clark is also affiliated with AdventHealth Port Charlotte. Dmand AI links Dr. Clark to 2 more hospitals.
What medical group is Dr. James Duncan Clark III part of?
Dr. Clark is linked to Millennium Physician Group. Dmand AI links Dr. Clark to 1 more medical group.
Does Dr. James Duncan Clark III accept Medicare?
Yes. CMS data shows Dr. Clark billed Medicare for 1,734 services in 2024, and Dr. Clark accepts Medicare assignment.
How many Medicare patients does Dr. James Duncan Clark III see?
CMS counts 604 Medicare patients who saw Dr. Clark in 2024, with an average age of 79.
What services does Dr. James Duncan Clark III bill to Medicare?
In 2024, Dr. Clark's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).
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What drugs does Dr. James Duncan Clark III prescribe most?
In 2024 Medicare Part D data, Dr. Clark's most prescribed drugs by claims were Cefdinir, Prednisone and Azithromycin.
Has Dr. James Duncan Clark III received payments from drug or device companies?
CMS Open Payments shows $61 in general payments to Dr. Clark from 3 companies from 2018 to 2021. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. James Duncan Clark III been practicing?
Dr. Clark graduated from medical school in 2018, 8 years ago.
Does Dr. James Duncan Clark III do research?
Dmand AI links 1 publication to Dr. Clark.
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