Gregory L. Johnson
Expertise in
36
conditions

Dr. Gregory L. Johnson

Pediatric Cardiology
Dell Children's Pediatric And Congenital Cardiology - Georgetown
4853 Williams Dr, Ste 105, 
Georgetown, TX 
Accepting New Patients
Referral may be required
Before you request
Expertise in
36
conditions
Dell Children's Pediatric And Congenital Cardiology - Georgetown
4853 Williams Dr, Ste 105, 
Georgetown, TX 

Overview

Gregory Johnson, MD, is a pediatric cardiologist with Dell Children's Pediatric and Congenital Cardiology in Austin, Kyle, Cedar Park, College Station, Georgetown, and Waco, Texas. He specializes in the diagnosis and treatment of congenital heart disease in patients of all ages ranging from developing babies (fetus), newborns and children to adults.

Dr. Johnson is highly rated in 36 conditions, according to our data. His clinical expertise encompasses Double Inlet Left Ventricle, Tetralogy of Fallot, Congenital Heart Disease (CHD), and DiGeorge Syndrome.

Dr. Johnson is board certified in The American Board Of Pediatrics - Pediatric Cardiology. He is actively involved in clinical research, co-authoring 1 peer reviewed article. Dr. Johnson is currently accepting new patients.

Specialties

Pediatric Cardiology

Licenses

Pediatric Cardiology in TX

Board Certifications

The American Board Of Pediatrics - Pediatric Cardiology

Hospital Affiliations

Ascension Seton Cedar Park
Ascension Seton Hays
Ascension Seton Medical Center Austin
Ascension Seton Northwest
Ascension Seton Southwest
Ascension Seton Williamson
Dell Children's Medical Center
Dell Children's Medical Center North Campus
Dell Seton Medical Center At The University Of Texas
Dell Children's Medical Center

Languages Spoken

English
Spanish

Gender

Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

Find your insurance
Find your insuranceClose

Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
Baylor Scott & White Health
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Blue Shield of California
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Cambia Health Solutions
  • EPO
  • INSURANCE PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
FirstCare
  • HMO
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
Moda Health
  • EPO
  • PPO
Oscar
  • EPO
  • HMO
  • PPO
Premera Blue Cross
  • INSURANCE PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • PPO
Seton Health Plan
  • MANAGED MEDICAID PLAN
Superior Health Plan
  • MANAGED MEDICAID PLAN
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
Trustmark
  • PPO
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 16 Less Insurance Carriers -

Locations

Dell Children's Pediatric and Congenital Cardiology - Georgetown
4853 Williams Dr, Ste 105, Georgetown, TX 78633
Other Locations
Dell Children's Pediatric and Congenital Cardiology - College Station
1602 Rock Prairie Rd, Ste 400, College Station, TX 77845

Additional Areas of Focus

Dr. Johnson has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Neurofibromatosis Type 1 (NF1)

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

1 Total Publications

Rhabdomyomas of the Mitral Valve: Case Series and Conservative Management Approach.
Rhabdomyomas of the Mitral Valve: Case Series and Conservative Management Approach.
Journal: Pediatric cardiology
Published: December 10, 2025
Similar Doctors
Expertise in
29
conditions
Dr. Eileen M. Stewart
Pediatric Cardiology
Expertise in
29
conditions
Dr. Eileen M. Stewart
Pediatric Cardiology
Referral may be required

Dell Children's Pediatric And Congenital Cardiology - Cedar Park

1301 Medical Pkwy, Ste 320, 
Cedar Park, TX 
 (12.3 miles away)
512-777-2917
Languages Spoken:
English
See accepted insurances
Accepting New Patients

Eileen Stewart, MD, is a pediatric cardiologist with Dell Children's Pediatric and Congenital Cardiology in Austin, Texas. She specializes in the diagnosis and treatment of congenital heart disease in patients of all ages ranging from developing babies (fetus), newborns and children to adults. Dr. Stewart is highly rated in 29 conditions, according to our data. Her clinical expertise encompasses Congenital Heart Disease (CHD), Double Inlet Left Ventricle, Trisomy 18, Transposition of the Great Arteries, and Stent Placement. Dr. Stewart is board certified in The American Board Of Pediatrics - Pediatrics and The American Board Of Pediatrics - Pediatric Cardiology. Dr. Stewart is currently accepting new patients.

Expertise in
12
conditions
Dr. Chesney D. Castleberry
Pediatric Cardiology
Expertise in
12
conditions
Dr. Chesney D. Castleberry
Pediatric Cardiology
Referral may be required

Dell Children's Pediatric And Congenital Cardiology - Kyle

1180 Seton Pkwy, Ste 250, 
Kyle, TX 
 (47.9 miles away)
512-777-2917
Languages Spoken:
English
See accepted insurances
Accepting New Patients

Chesney D. Castleberry, MD, is a board-certified, experienced pediatric cardiologist at Dell Children's Pediatric and Congenital Cardiology in Austin, Kyle, Cedar Park, College Station, Georgetown, and Waco, Texas. She has the expertise to diagnose, treat and manage even the most complex heart conditions in infants and children and specializes in pediatric heart failure and transplantation. Dr. Castleberry is highly rated in 12 conditions, according to our data. Her clinical expertise encompasses Dilated Cardiomyopathy (DCM), Hypoplastic Left Heart Syndrome (HLHS), Mitral Atresia, Duchenne Muscular Dystrophy, and Heart Transplant. Dr. Castleberry is board certified in The American Board Of Pediatrics - Pediatrics and The American Board Of Pediatrics - Pediatric Cardiology. Dr. Castleberry is currently accepting new patients.

Expertise in
23
conditions
Dr. Michael J. Perez
Pediatric Cardiology
Expertise in
23
conditions
Dr. Michael J. Perez
Pediatric Cardiology
Referral may be required
Before you request

Dell Children's Pediatric And Congenital Cardiology - Cedar Park

1301 Medical Pkwy, Ste 320, 
Cedar Park, TX 
 (12.3 miles away)
512-777-2917
Languages Spoken:
English, Spanish
See accepted insurances
Accepting New Patients

Michael Perez, MD, is a pediatric cardiologist with Dell Children's Pediatric and Congenital Cardiology in Austin, Kyle, Cedar Park, College Station, Georgetown, and Waco, Texas. He specializes in the diagnosis and treatment of congenital heart disease in patients of all ages ranging from developing babies (fetus), newborns and children to adults. Dr. Perez is highly rated in 23 conditions, according to our data. His clinical expertise encompasses Patent Ductus Arteriosus, Ventricular Septal Defects, Atrial Septal Defect (ASD), and Heart Murmurs. Dr. Perez is board certified in The American Board Of Pediatrics - Pediatrics and The American Board Of Pediatrics - Pediatric Cardiology. Dr. Perez is currently accepting new patients.

Frequently Asked Questions about Dr. Gregory L. Johnson

How do I make an appointment with Dr. Gregory L. Johnson?

You can book an appointment with Dr. Gregory L. Johnson by calling their office at 512-777-2917. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Gregory L. Johnson a top-rated expert for Double Inlet Left Ventricle?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Gregory L. Johnson is classified as an Advanced expert for Double Inlet Left Ventricle, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Gregory L. Johnson specialize in?

While Dr. Gregory L. Johnson is a Pediatric Cardiology, they have specific expertise in Double Inlet Left Ventricle, Tetralogy of Fallot, and Congenital Heart Disease (CHD). MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Pediatric Cardiology.

Does Dr. Gregory L. Johnson participate in research or clinical trials?

Yes. Dr. Gregory L. Johnson has published 1 articles and abstracts on conditions like Double Inlet Left Ventricle. You can view a list of Dr. Gregory L. Johnson's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Gregory L. Johnson accept my insurance?

Dr. Gregory L. Johnson accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 512-777-2917 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Johnson's expertise for a condition
ConditionClose
      View All 36 Advanced Conditions
      View All 63 Experienced Conditions
      Want to save this doctor for later?
      Sign Up
      Is this your doctor?
      Find A Second Opinion
      Not sure about your diagnosis?
      Check Your Symptoms
       
       
       
       
      Learn about our expert tiers
      Learn More
      Are you the provider on this profile?
      Claim Profile