Arterial Occlusive DiseasesCarotid Artery, CommonCarotid Stenosis
Dr. John Michael Duncan Jr., MD
NPI1003903543
- Medicare services, 2018
- 1,929
- Part D claims, 2024
- 33
- Publications
- 33
- Clinical trials
- 10
- Industry payments
- $278
- Practice address
- 1101 Bates Ave # P115 #P115, Houston, TX 77030-2607
- Practice phone
- Call (832) 355-4900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Texas Heart Medical Group
Surgical practice · Houston, Texas
Find Dr. Duncan's professional email, personal email and mobile number
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Dr. John Michael Duncan Jr. is a cardiothoracic surgeon in Wheeling, West Virginia
Dr. Duncan practices at Texas Heart Medical Group in Houston, Texas.
Dr. Duncan's NPI, 1003903543, was assigned on October 6, 2006. Dr. Duncan graduated from Baylor College Of Medicine in 1971. Dr. Duncan holds Texas license D8200.
NPI and contact details
- NPI
- 1003903543NPI Registry (opens in a new tab)
- NPI enumeration date
- October 6, 2006
- NPI status
- Active
- Practice phone
- (832) 355-4900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1971
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Michael Duncan Jr. practices in Houston and Wheeling
Dr. Duncan's primary practice is Texas Heart Medical Group, at 1101 Bates Ave # P115 #P115, Houston, TX 77030-2607. The practice phone is (832) 355-4900. The NPI Registry lists Dr. Duncan's practice address as 1 Medical Park, Wheeling, WV 26003.
- Texas Heart Medical GroupPrimary1101 Bates Ave # P115 #P115, Houston, TX 77030-2607Phone(832) 355-4900
- NPI Registry address1 Medical Park, Wheeling, WV 26003 · Ohio CountyPhone(832) 355-4900
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. John Michael Duncan Jr. is affiliated with 1 site of care and 1 medical group
Dr. Duncan's primary practice is Texas Heart Medical Group in Houston, Texas. Dmand AI also links Dr. Duncan to 1 medical group, named with a free account.
Texas Heart Medical GroupPrimary
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. John Michael Duncan Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duncan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Texas Heart Medical Group | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Michael Duncan Jr. is one of 44 cardiothoracic surgeons in West Virginia
Thoracic surgery (cardiothoracic vascular surgery) is Dr. Duncan's primary specialty in the NPI Registry, under taxonomy code 208G00000X. Dr. Duncan is board certified in thoracic and cardiac surgery by the American Board of Thoracic Surgery. Dr. Duncan is licensed in Texas.
Specialties and state licenses
- Thoracic surgery (cardiothoracic vascular surgery), TexasPrimary
Cardiothoracic surgeons near Dr. Duncan
Counts of cardiothoracic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
44cardiothoracic surgeons in West Virginia
6cardiothoracic surgeons in Wheeling
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Michael Duncan Jr. billed Medicare for 1,929 services in 2018
CMS data shows 1,929 Medicare services from Dr. Duncan across 14 procedure codes in 2018. Medicare paid $56,100 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 20181,929
Paid by Medicare$56,100
Procedure codes14
Dr. Duncan's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Tests and treatments
- 2017: 2,7532018: 1,85833%
- Other services
- 2017: 02018: 48
- Office and hospital visits
- 2017: 612018: 1280%
- Surgery
- 2017: 302018: 1163%
Dr. Duncan compared with the West Virginia median for cardiothoracic surgeons, 2018
- Dr. Duncan
- West Virginia median
- Medicare services
- 1,929vs 13514.3 times
- Part D claims
- 12vs 2857% below
Medians across 39 cardiothoracic surgeons in West Virginia with Dmand AI profiles that report each measure.
Dr. Duncan's most billed Medicare procedure codes, 2018
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 Dr. Duncan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Duncan and other cardiothoracic surgeons in West Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Michael Duncan Jr. wrote 33 Medicare Part D claims in 2024
In 2024, Dr. Duncan wrote 33 Medicare Part D claims. 79% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $7,171 in total drug cost. In 2016, CMS named 34 claims across 2 drugs.
Part D claims, 202433
Drugs named by CMS1
Total drug cost$7,171
Dr. Duncan's Part D claims by kind of drug, 2024
- Generic26 claims79%
- Brand-name and other7 claims21%
Dr. Duncan'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, 2016 to 2023
- 2016
- 2023
- Claims for drugs CMS names
- 2016: 342023: 1265%
Drugs named by CMS: 1 in 2023, 2 in 2016.
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
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Dr. John Michael Duncan Jr. has 33 publications on record
Dmand AI links 33 papers to Dr. Duncan in 2011. The most frequent topics are Heart-Assist Devices, Heart Transplantation and Coronary Artery Bypass. Dr. Duncan has published most often in Ann Thorac Surg. Dr. Duncan's most frequent co-authors are James J. Livesay, MD, David A. Ott, MD and Igor Darko Gregoric, MD.
Papers33
Topics Dr. Duncan writes about most
- Heart-Assist Devices
- Heart Transplantation
- Coronary Artery Bypass
- Coronary Disease
- Heart Atria
- Postoperative Complications
- Reoperation
- Endarterectomy, Carotid
Dr. Duncan's most frequent co-authors
- James J. Livesay, MD13 shared papers
- David A. Ott, MD8 shared papers
- Igor Darko Gregoric, MD5 shared papers
Recent publications by Dr. Duncan
Anastomosis, SurgicalArmArteriovenous Shunt, Surgical
Aortic AneurysmAortic RuptureBlood Vessel Prosthesis Implantation
Ann Thorac Surg
Arterial Occlusive DiseasesBrachiocephalic TrunkCoronary Artery Bypass
ChristianityGraft RejectionHeart Transplantation
See who Dr. Duncan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Duncan works with, so you can find a warm path to the right cardiothoracic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Michael Duncan Jr. has worked on 10 clinical trials
Dmand AI links Dr. Duncan to 10 clinical trials, 4 of them phase 2 studies. 9 are still active or recruiting. Conditions studied include Adenocarcinoma of Lung, Biliary Atresia and Low Back Pain.
Clinical trials with Dr. Duncan by phase
- NonePhase 1: no trials
- 4Phase 2: 4 trials
- 1Phase 2/3: 1 trial
- NonePhase 3: no trials
- NonePhase 4: no trials
Trials with no phase (devices, behavioral studies) are left out.
Conditions in Dr. Duncan's trials
- Adenocarcinoma of Lung
- Biliary Atresia
- Low Back Pain
- Malocclusion
- Muscular Atrophy
Investigators on the most trials with Dr. Duncan
- Kader Tawfiq Abdelerahman, MD10 shared trials
- Randa Abdelmasih, MD10 shared trials
- Marjorie E. Affel, MD10 shared trials
Recent clinical trials with Dr. Duncan
Soft Tissue InjuriesWounds and InjuriesA percussion massage gunSpecially designed stainless-steel instruments
Adenocarcinoma of LungAdenocarcinoma
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. John Michael Duncan Jr. received $278 in industry payments from 2021 to 2022
CMS Open Payments shows 15 general payments to Dr. Duncan from 1 drug or device company from 2021 to 2022. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $278.
General payments to Dr. Duncan by program year, 2021 to 2022
Companies that paid Dr. Duncan the most, 2021 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Michael Duncan Jr. has 1 award and honors on record
Dmand AI lists 1 award for Dr. Duncan.
Awards and honors for Dr. Duncan
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. John Michael Duncan Jr. graduated from Baylor College Of Medicine
Dr. Duncan graduated from Baylor College Of Medicine in 1971. Dr. Duncan is a member of ACS.
- Medical school
- Board certified in thoracic and cardiac surgery
Source: Dmand AI Professional Profile Data
Dr. John Michael Duncan Jr. accepts plans from 1 insurance carrier
Dr. Duncan is in network with 1 carrier, including Excellus BlueCross BlueShield. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
Plan types Dr. Duncan accepts, by number of carriers
- EPO1
- Medicare1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. John Michael Duncan Jr.'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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 Dr. John Michael Duncan Jr.
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. John Michael Duncan Jr.'s NPI number?
Dr. John Michael Duncan Jr.'s NPI number is 1003903543. It was assigned on October 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Michael Duncan Jr.?
Dr. John Michael Duncan Jr. is a cardiothoracic surgeon in Wheeling, West Virginia. The primary specialty in the NPI Registry is Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (taxonomy code 208G00000X).
Where does Dr. John Michael Duncan Jr. practice?
Dr. Duncan practices at 1101 Bates Ave # P115 #P115, Houston, TX 77030-2607. Dr. Duncan also practices at 1 Medical Park, Wheeling, WV 26003. Dr. Duncan's primary practice is Texas Heart Medical Group in Houston, Texas. Dmand AI also links Dr. Duncan to 1 medical group.
What is Dr. John Michael Duncan Jr.'s office phone number?
The practice phone on file for Dr. Duncan is (832) 355-4900.
What is Dr. John Michael Duncan Jr.'s medical license number?
Dr. Duncan holds Texas license D8200.
Does Dr. John Michael Duncan Jr. accept Medicare?
Yes. CMS data shows Dr. Duncan billed Medicare for 1,929 services in 2018.
Is Dr. John Michael Duncan Jr. board certified?
Yes. Dr. Duncan is board certified in thoracic and cardiac surgery by the American Board of Thoracic Surgery.
What services does Dr. John Michael Duncan Jr. bill to Medicare?
In 2018, Dr. Duncan's most billed Medicare services were blood vessel study (93970), blood vessel study (93880) and blood vessel study (93971).
Where did Dr. John Michael Duncan Jr. go to medical school?
Dr. Duncan graduated from Baylor College Of Medicine in 1971.
What drugs does Dr. John Michael Duncan Jr. prescribe most?
In 2023 Medicare Part D data, Dr. Duncan's most prescribed drugs by claims were Repatha Sureclick.
Show 5 more questionsShow fewer questions
Has Dr. John Michael Duncan Jr. received payments from drug or device companies?
CMS Open Payments shows $278 in general payments to Dr. Duncan from 1 company from 2021 to 2022. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. John Michael Duncan Jr. been practicing?
Dr. Duncan graduated from medical school in 1971, 55 years ago.
Does Dr. John Michael Duncan Jr. do research?
Dmand AI links 33 publications to Dr. Duncan. Dr. Duncan has worked on 10 clinical trials.
Who does Dr. John Michael Duncan Jr. publish with?
Dr. Duncan's most frequent co-authors are James J. Livesay, MD (13 shared papers), David A. Ott, MD (8 shared papers) and Igor Darko Gregoric, MD (5 shared papers).
What insurance does Dr. John Michael Duncan Jr. accept?
Dr. Duncan is in network with 1 carrier, including Excellus BlueCross BlueShield. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
Selling to thoracic surgery (cardiothoracic vascular surgery) practices?
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