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Edit this profileAt a glance
- Duke University Medical Ctr, Durham, NC 27710
About John Alexander
John Alexander is a healthcare provider in Durham, NC specializing in cardiovascular disease. John trained at Perelman School of Med at the University of Pennsylvania, graduating in 1993. According to Medicare claims data, John cared for 2,234 Medicare patients across 2,306 services. The services billed most often include ultrasound of heart with color-depicted blood flow, rate, direction and valve function, heart muscle strain imaging, and 3d radiographic procedure with computerized image postprocessing. This provider record is associated with NPI 1831282094.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (919) 620-4467
- Email not available
Practice Locations
DUKE UNIVERSITY MEDICAL CTR
Durham, NC 27710
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Coronary and ischemic heart disease
Heart failure and cardiomyopathy
Heart rhythm
Symptoms and functional disorders
Valve and structural heart
Vascular and risk factors
Artery & vascular
Heart inflammation
Heart muscle
Heart valves
Vascular disease
Procedures & services
Most searched procedures
Office and noninvasive testing
Advanced imaging
Consultations
Diagnostic testing
Diagnostics
Heart devices
- Biventricular Pacemaker (Cardiac Resynchronization Therapy)
- Implantable Loop Recorder (Cardiac Monitor Implant)
Heart imaging
Heart procedures
Heart rhythm procedures
Imaging
Implants
Recovery & rehabilitation
Vascular imaging
Procedures Most Often Billed to Medicare
2,306 services · 2,234 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| 3d radiographic procedure with computerized image postprocessing | Imaging | 76377 |
249 | More than most peers in Cardiovascular Disease |
| 3d radiographic procedure with computerized image postprocessing | Imaging | 76377 |
83 | More than most peers in Cardiovascular Disease |
| 3d radiographic procedure | Imaging | 76376 |
17 | Less often than most peers in Cardiovascular Disease |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
499 | More than most peers in Cardiovascular Disease |
| Heart muscle strain imaging | Treatment | 93356 |
333 | More than most peers in Cardiovascular Disease |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
223 | More than most peers in Cardiovascular Disease |
| Heart muscle strain imaging | Treatment | 93356 |
190 | More than most peers in Cardiovascular Disease |
| External shock to heart to regulate heart beat | Treatment | 92960 |
57 | More than most peers in Cardiovascular Disease |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
55 | More often than most peers in Cardiovascular Disease |
| Ultrasound of heart blood flow, valves and chambers, follow-up | Treatment | 93321 |
51 | More often than most peers in Cardiovascular Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other cardiologists in Durham 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Perelman School of Med at the University of Pennsylvania 8
Other providers in the same specialty who trained at the same institution.
Class of 1993 at Perelman School of Med at the University of Pennsylvania 8
Providers who graduated from the same medical school in the same year.
Also performs 3d radiographic procedure with computerized image postprocessing 8
Providers in NC who bill this service to Medicare most often.
Common questions
What kind of doctor is John Alexander?
John Alexander is a cardiologist in Durham, NC. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiovascular Disease”.
NPI registry
What is John Alexander's address?
John Alexander is listed at Duke University Medical Ctr, Durham, NC 27710. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with John Alexander?
The number on file is (919) 620-4467. Contact the office directly to confirm availability and scheduling.
NPI registry
What is John Alexander's NPI number?
John Alexander's National Provider Identifier is 1831282094. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did John Alexander train?
John Alexander attended Perelman School of Med at the University of Pennsylvania, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How long has John Alexander been practicing?
John Alexander has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What procedures does John Alexander perform?
According to Medicare billing data, John Alexander performs imaging including 3d radiographic procedure with computerized image postprocessing and 3d radiographic procedure; provides treatments such as ultrasound of heart with color-depicted blood flow, rate, direction and valve function and heart muscle strain imaging, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has John Alexander confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by John Alexander. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.