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Dr. Gregory Mark Barker, MD is a pediatric cardiologist in Fort Worth, TX specializing in pediatric cardiology and internal medicine (adult medicine). He graduated from University of Texas Southwestern Medical School in 2005 and has 21 years of experience. Dr. Gregory Mark Barker, MD is affiliated with Hendrick Health, Cook Children's Heart Center, Cook Children's, Texas Health Huguley Hospital, Texas Health Resources, Cook Children's Physician Network, Midland Health, Hendrick Medical Center South and Hendrick Medical Center.
Hendrick Medical Center
Cardiac Resynchronization Therapy (CRT)
A cardiac resynchronization therapy device, also known as a CRT or biventricular pacemaker, is a kind of pacemaker that can help the heart work more effectively. In certain kinds of heart failure, the ventricles, or larger chambers in the heart, stop working together. When they are no longer in synch, the heart can't pump enough blood to meet the body's needs. CRT can help keep the heartbeat regular and the ventricles contracting at the same time.
Just as with a standard pacemaker, a biventricular pacemaker consists of a small battery pack and electrical leads, or small wires that conduct electricity to the heart. CRT pacemakers have two or three leads, placed in the upper and lower chambers of the heart. The device measures the contractions of the heart, and if the heart begins to beat out of time it will send small, rhythmic pulses of electricity to resynchronize (hence the name 'cardiac resynchronization therapy) the contractions. This allows the heart to pump blood to the rest of the body more efficiently. Sometimes a CRT is combined with a different kind of device called an implantable cardioverter-defibrillator or ICD, which uses a higher burst of energy to restart the heart if it stops suddenly.
When a biventricular pacemaker is inserted, the wire leads are usually placed via a small incision near the shoulder, then threaded through a vein to the heart. The battery pack is placed under the skin of the chest near the collarbone. Once everything is in place, the leads are connected to the battery, and the CRT can begin helping the heart beat correctly.
It is normal to experience swelling and discomfort as the incisions from surgery heal. It takes time for the heart to adjust to the pacemaker, so vigorous activity should be kept to a minimum for the first few weeks. Strong magnetic fields may affect how the CRT functions, so patients may be advised to avoid them. As patients heart begins to pump blood more effectively, they should soon begin to feel stronger and less fatigued.
Dr. Gregory Mark Barker, MD graduated from University of Texas Southwestern Medical School in 2005. He completed residency at Duke University Medical Center. He is certified by the Pediatric Cardiology: The American Board of Pediatrics and has a state license in Texas.
Medical School: University of Texas Southwestern Medical School (2005)
Residency: Duke University Medical Center (2009)
Board Certification: Pediatric Cardiology: The American Board of Pediatrics
Licensed In: Texas
Dr. Gregory Mark Barker, MD is associated with these hospitals and organizations:
Dr. Gregory Mark Barker, MD appears to accept the following insurance providers: Cigna Healthcare of Texas, MultiPlan Inc/PHCS, Aetna, Galaxy Healthcare Network, EHN- Employers Health Network, Providence Health Alliance, First Health Network, United Healthcare PPO/EPO, Blue Cross Blue Shield of Texas PAR - Cook Children's Medical Center Fort Worth Only, HealthSmart Payors Organization/HealthSmart, Imagine Health, USA Managed Care Organizations, Baylor Scott and White Health Plan, Fort Worth Firefighters 440, HealthScope and Blue Cross Blue Shield HealthSelect of Texas.
According to our sources, Dr. Gregory Mark Barker, MD accepts the following insurance providers:
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These charts describe general payments received by Dr. Gregory Mark Barker, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.
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$367
Amplia MRI $163 |
Implantable Cardioverter Defibrillators - ICDs $127 |
Pacemakers $36 |
Patient Management - Data Connectivity Solutions $29 |
Medtronic External Pacemakers $12 |
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$286
Carto 3 System $166 |
CartoUnivu $83 |
CartoSound $25 |
Carto 3 $12 |
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$166
COBALT DR MRI SURESCAN $83 |
CONCERTOTM $43 |
CareLink $25 |
Cobalt $15 |
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$145
EnSite Precision Cardiac Mapping System $145 |
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$131
AlloDerm $131 |
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$147
Structural Heart $38 |
MynxGrip Vascular Closure Device $23 |
Bradycardia products $22 |
SIVEXTRO $18 |
LifeVest $16 |
Other $30 |
| $1,220 | |
| $22 |
Dr. Gregory Barker is a pediatric cardiology specialist in Fort Worth, TX. Dr. Barker's areas of expertise include newborn care, electrophysiological (EP) study, and cardiac resynchronization therapy (CRT). His professional affiliations include Texas Health Arlington Memorial Hospital, Texas Health Denton, and Texas Health Fort Worth. He obtained his medical school training at the University of Texas Southwestern Medical School and performed his residency at Duke University Medical Center. Dr. Barker can take Blue California, HealthSmart, Coventry, and more. He has received the following distinction: Texas Rising Stars. According to AdventHealth, he is currently accepting new patients at his office in Fort Worth, TX.
