Dr. James Matthew Brennan, MD
- Medicare services, 2024
- 3,837
- Medicare patients, 2024
- 1,597
- Part D claims, 2024
- 7,956
- Hospital affiliations
- 6
- Industry payments
- $47,610
- Practice address
- 3643 N Roxboro Street, Durham, NC 27704
- Practice phone
- Call (919) 470-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Brennan'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 Matthew Brennan is an internist in Durham, North Carolina
Dr. Brennan practices at Duke Regional Hospital in Durham, North Carolina, part of Duke University.
Dr. Brennan's NPI, 1164689105, was assigned on May 19, 2008. Dr. Brennan graduated from Univ of Missouri-Kansas City School of Dentistry in 2003. Dr. Brennan holds North Carolina license 135846.
- NPI
- 1164689105NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3971773524
- NPI enumeration date
- May 19, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (919) 470-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James Matthew Brennan practices at Duke Regional Hospital in Durham, North Carolina
Dr. Brennan's primary practice is Duke Regional Hospital, at 3643 N Roxboro Street, Durham, NC 27704 in Durham County. The practice phone is (919) 470-4000.
- Duke Regional Hospital3643 N Roxboro Street, Durham, NC 27704 · Durham CountyPhone(919) 470-4000
Source: Dmand AI Affiliation Data
Dr. James Matthew Brennan is affiliated with 6 sites of care and 2 medical groups
Dr. Brennan's primary practice is Duke Regional Hospital in Durham, North Carolina, part of Duke University. Dr. Brennan is also affiliated with Duke University Hospital. The medical group on file is Duke Health Integrated Practice. Dmand AI also links Dr. Brennan to 4 more hospitals 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 Matthew Brennan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brennan practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Duke Regional Hospital | Available with a free account |
| +5 more sites and 1 medical group | 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 Duke University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. James Matthew Brennan is one of 3,705 internists in North Carolina
Internal medicine is Dr. Brennan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Brennan is licensed in North Carolina.
Specialties and state licenses
- Internal medicine, North CarolinaPrimary
Internists near Dr. Brennan
Counts of internists 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 Matthew Brennan billed Medicare for 3,837 services in 2024
CMS data shows 3,837 Medicare services from Dr. Brennan across 36 procedure codes in 2024, for 1,597 Medicare patients. Medicare paid $177,727 for them.
Dr. Brennan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 3,0062024: 2,64112%
- Office and hospital visits
- 2023: 5042024: 60520%
- Other services
- 2023: 392024: 5621341%
- Imaging
- 2023: 122024: 29142%
- Drugs given in the office
- 2023: 1162024: 0100%
Where Dr. Brennan's Medicare services took place, 2024
- In an office2,02153%
- In a facility1,81647%
Dr. Brennan compared with the North Carolina median for internists, 2024
- Dr. Brennan
- North Carolina median
- Medicare services
- 3,837vs 5217.4 times
- Medicare patients
- 1,597vs 1858.6 times
- Part D claims
- 7,706vs 27228.3 times
Medians across 3,695 internists in North Carolina with Dmand AI profiles that report each measure.
Dr. Brennan'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 Dr. Brennan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Brennan and other internists in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James Matthew Brennan treated 1,597 Medicare patients in 2024, average age 75
CMS counts 1,597 Medicare patients who saw Dr. Brennan in 2024. The largest group is 75 to 84, with 621 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.87, 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. Brennan's median patient age at 73, with 57% women.
Dr. Brennan's Medicare patients by age, 2024
Dr. Brennan's Medicare patients by sex, 2024
- Women83552%
- Men76248%
Chronic conditions among Dr. Brennan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease46%
- Chronic kidney disease40%
- Diabetes38%
- Heart failure38%
- Atrial fibrillation35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Brennan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James Matthew Brennan wrote 7,956 Medicare Part D claims in 2024
In 2024, Dr. Brennan wrote 7,956 Medicare Part D claims for 1,062 patients. 81% of them were for generic drugs. CMS names the drug for 7,706 of them, across 54 drugs with 11 or more claims each, at $1,477,385 in total drug cost. In 2023, CMS named 5,912 claims across 57 drugs.
Dr. Brennan's Part D claims by kind of drug, 2024
- Generic6,426 claims81%
- Brand-name1,530 claims19%
Dr. Brennan'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. Brennan's Part D claims, 2024
- Antibiotics0%26 of 7,956 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: 5,9122024: 7,70630%
Drugs named by CMS: 54 in 2024, 57 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
Dr. James Matthew Brennan ranks in the 87th percentile for coronary angioplasty and stenting in Medicare
Dr. Brennan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 57 procedures of coronary angioplasty and stenting by Dr. Brennan, more than 87% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Brennan ranks in Medicare procedure volume
- Coronary angioplasty and stenting
- 87th percentile57 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. James Matthew Brennan received $47,610 in industry payments from 2016 to 2025
CMS Open Payments shows 146 general payments to Dr. Brennan from 17 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 33% of the total. Edwards Lifesciences Corporation paid the most, $44,168.
General payments to Dr. Brennan by program year, 2016 to 2025
General payments to Dr. Brennan by kind, 2016 to 2025
- Travel and lodging$15,57133%
- Honoraria$15,00032%
- Consulting fees$12,94827%
- Food and beverage$4,0458%
- Other$460%
Companies that paid Dr. Brennan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James Matthew Brennan graduated from Univ of Missouri-Kansas City School of Dentistry
Dr. Brennan graduated from Univ of Missouri-Kansas City School of Dentistry in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James Matthew Brennan'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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Matthew Brennan
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 Matthew Brennan's NPI number?
Dr. James Matthew Brennan's NPI number is 1164689105. It was assigned on May 19, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. James Matthew Brennan?
Dr. James Matthew Brennan is an internist in Durham, North Carolina. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. James Matthew Brennan practice?
Dr. Brennan practices at 3643 N Roxboro Street, Durham, NC 27704. Dr. Brennan's primary practice is Duke Regional Hospital in Durham, North Carolina, part of Duke University. Dmand AI also links Dr. Brennan to 4 hospitals and 1 medical group.
What is Dr. James Matthew Brennan's office phone number?
The practice phone on file for Dr. Brennan is (919) 470-4000.
What is Dr. James Matthew Brennan's medical license number?
Dr. Brennan holds North Carolina license 135846.
Which hospitals is Dr. James Matthew Brennan affiliated with?
Dr. Brennan practices at Duke Regional Hospital in Durham, North Carolina. Dr. Brennan is also affiliated with Duke University Hospital. Dmand AI links Dr. Brennan to 4 more hospitals.
What medical group is Dr. James Matthew Brennan part of?
Dr. Brennan is linked to Duke Health Integrated Practice. Dmand AI links Dr. Brennan to 1 more medical group.
Does Dr. James Matthew Brennan accept Medicare?
Yes. CMS data shows Dr. Brennan billed Medicare for 3,837 services in 2024, and Dr. Brennan accepts Medicare assignment.
How many Medicare patients does Dr. James Matthew Brennan see?
CMS counts 1,597 Medicare patients who saw Dr. Brennan in 2024, with an average age of 75.
What services does Dr. James Matthew Brennan bill to Medicare?
In 2024, Dr. Brennan's most billed Medicare services were heart test or procedure (93010), medicare service (G2211) and heart test or procedure (93306).
Show 4 more questionsShow fewer questions
Where did Dr. James Matthew Brennan go to medical school?
Dr. Brennan graduated from Univ of Missouri-Kansas City School of Dentistry in 2003.
What drugs does Dr. James Matthew Brennan prescribe most?
In 2024 Medicare Part D data, Dr. Brennan's most prescribed drugs by claims were Metoprolol Succinate, Atorvastatin Calcium and Eliquis.
Has Dr. James Matthew Brennan received payments from drug or device companies?
CMS Open Payments shows $47,610 in general payments to Dr. Brennan from 17 companies from 2016 to 2025. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. James Matthew Brennan been practicing?
Dr. Brennan graduated from medical school in 2003, 23 years ago.
Selling to internal medicine practices?
See internists in North Carolina by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card