38 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Dreyer, Pediatric Cardiologist in Houston, TX?
Dr. William Dreyer, MD is a Pediatric Cardiologist, who primarily practices in Houston, TX. He has been practicing for over 38 years and is board certified by the American Board of Pediatrics. Dr. Dreyer graduated from University of Florida College of Medicine and completed his residency at University of California, San Francisco. He is a member of the Texas Medical Association, American Heart Association, International Society for Heart and Lung Transplantation, American Academy of Pediatrics, and American College of Cardiology. Dr. Dreyer is fluent in English and Spanish, and is currently seeing new patients. Dr. Dreyer’s practice accepts Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Dreyer’s office at (832) 826-5600.
What are Areas of Expertise for Dr. Dreyer?
Dr. William Dreyer, MD is a highly-rated, board-certified Pediatric Cardiologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Dreyer empowers patients to confidently navigate their health journey, specializing in Congenital Heart Disease, Heart Failure, Transplant Medicine-Heart, or comprehensive wellness support. Serving the Houston/TX community, Dr. Dreyer is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Dreyer go to medical school and complete their residency?
Fellowship: Baylor College of Medicine, Pediatric Cardiology | Pediatric Cardiology, Baylor College of Medicine, Houston, TX
Residency: University of California, San Francisco | Baylor College of Medicine Program
Medical School: University of Florida College of Medicine
Is Dr. Dreyer board certified in Pediatric Cardiologist?
Yes, Dr. William Dreyer, MD is board certified by the American Board of Pediatrics
What languages does Dr. Dreyer speak?
Dr. Dreyer and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Dreyer treat?
As a Pediatric Cardiologist, Dr. Dreyer diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Dreyer. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Having a Heart Transplant
- Heart Transplantation
- Cardiac transplant
- Heart replacement surgery
- Post-heart transplant
ICD-10 Codes:
- Z941: Heart transplant status
Also known as:
- Ventricular Septal Defect
- Hole in the Heart (Atrial Septal Defect)
- Hypoplastic Left Heart Syndrome
- Double Outlet Right Ventricle
- Congenital Heart Defects
- Critical congenital heart disease
- VSD
- Hole in the Heart (Ventricles)
- Congenital Heart Anomaly
- ASD
- Atrial Septal Defect
- Hole between Upper Heart Chambers
- HLHS
- Underdeveloped Left Heart
- Complex Congenital Heart Disease
- DORV
- Complex Heart Defect
ICD-10 Codes:
- Q210: Ventricular septal defect
- Q2110: Atrial septal defect, unspecified
- Q234: Hypoplastic left heart syndrome
- Q201: Double outlet right ventricle
Also known as:
- Other Cardiomyopathies
- Dilated Cardiomyopathy
- Hypertrophic Cardiomyopathy
- Cardiomyopathy
- Familial dilated cardiomyopathy
- X-linked dilated cardiomyopathy
- Uncommon heart muscle diseases
- Rare cardiomyopathy types
- Enlarged heart muscle
- DCM
- HCM
- Thickened Heart Muscle
ICD-10 Codes:
- I428: Other cardiomyopathies
- I420: Dilated cardiomyopathy
- I422: Other hypertrophic cardiomyopathy
Also known as:
- Heart Murmur
- Congenital Heart Defects
- Heart Valve Disease
- Cardiac murmur
- Abnormal heart sound
- Heart sound abnormality
ICD-10 Codes:
- R011: Cardiac murmur, unspecified
Also known as:
- Family History of Heart Disease
- Family History
- Heart Disease
- Hereditary heart disease risk
- Genetic predisposition to heart problems
- Heart conditions in the family
ICD-10 Codes:
- Z8249: Family history of ischemic heart disease and other diseases of the circulatory system
Also known as:
- Abnormal EKG
- Heart Health Tests
- Irregular Electrocardiogram
- Unusual Heart Rhythm Test
- ECG Abnormalities
ICD-10 Codes:
- R9431: Abnormal electrocardiogram [ECG] [EKG]
Also known as:
- Heart Transplant Aftercare
- Heart Transplantation
- Post-heart transplant care
- Heart transplant follow-up
- Cardiac transplant recovery
ICD-10 Codes:
- Z4821: Encounter for aftercare following heart transplant
Also known as:
- Duchenne or Becker Muscular Dystrophy
- Muscular Dystrophy
- DMD
- BMD
- Duchenne Muscular Dystrophy
- Becker Muscular Dystrophy
ICD-10 Codes:
- G7101: Duchenne or Becker muscular dystrophy
Also known as:
- Other Post-Surgery Condition
- Postoperative State
- Recovery After Surgery
- Surgical Follow-up
ICD-10 Codes:
- Z98890: Other specified postprocedural states
Also known as:
- Benign Heart Murmur
- Congenital Heart Defects
- Heart Valve Disease
- Innocent heart murmur
- Harmless heart murmur
- Physiological heart murmur
ICD-10 Codes:
- R010: Benign and innocent cardiac murmurs
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Upper body pain
ICD-10 Codes:
- R079: Chest pain, unspecified
Also known as:
- History of Corrected Heart and Circulatory System Birth Defects
- Birth Defects
- Heart Disease
- Past heart malformations
- Previous corrected congenital heart problems
- History of circulatory system birth anomalies
ICD-10 Codes:
- Z8774: Personal history of (corrected) congenital malformations of heart and circulatory system
Also known as:
- Heart Disease
- Heart Condition
- Cardiac Disease
- Heart Problem
ICD-10 Codes:
- I519: Heart disease, unspecified
Also known as:
- Awaiting Organ Transplant
- Organ Transplantation
- Organ transplant waitlist
- On transplant list
- Pre-transplant status
ICD-10 Codes:
- Z7682: Awaiting organ transplant status
Also known as:
- Heart Palpitations
- Arrhythmia
- Skipped Heartbeat
- Fluttering Heart
- Pounding Heart
ICD-10 Codes:
- R002: Palpitations
Which procedures does Dr. Dreyer perform as a Pediatric Cardiologist?
As a Pediatric Cardiologist, procedures performed by a Dr. William Dreyer may include:
- Absent Pulmonary Valve Repair
- Anomalous Coronary Artery Angiography
- Anticoagulation Management
- Aortic Stenosis Repair
- Aortic Valve Repair / Replacement
- Aortopulmonary Window Repair
- Arterial Doppler
- Balloon Septostomy
For detailed information, please contact Dr. Dreyer's office.
Does Dr. Dreyer accept my insurance?
Dr. Dreyer accepts most major insurance plans. Important: Please call our office at (832) 826-5600 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Dreyer accept in Houston, TX?
Dr. Dreyer in Houston, TX accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Aetna
All Other Third Party
BCBS Unspecified
Blue Cross and Blue Shield of Louisiana
Centene
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Independence Blue Cross
Medicare
UnitedHealthcare
View All Insurances
Where is Dr. Dreyer's office located?
Recognitions
Memberships & Associations
Texas Medical Association
Member
American Heart Association
Member
International Society for Heart and Lung Transplantation
Member
American Academy of Pediatrics
Fellow
American College of Cardiology
Fellow
What is Dr. Dreyer's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Dreyer's National Provider Identifier (NPI) number is 1184704421.
What common questions do patients ask about Dr. Dreyer?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Dreyer
What is Dr. William Dreyer's specialty?
Dr. Dreyer is a Pediatric Cardiologist near Houston, TX. A pediatric cardiologist provides comprehensive care for children with cardiovascular issues, offering expertise in diagnosing, treating, and managing heart and blood vessel conditions. This specialist is skilled in selecting, performing, and interpreting structural and functional assessments of the heart and blood vessels, as well as conducting thorough clinical evaluations of cardiovascular diseases in young patients. Contact Dr. Dreyer to book an appointment today.
Is this Dr. William Dreyer affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Dreyer is affiliated with Houston Methodist Hospital which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Pediatric Cardiologist?
Explore Pediatric Cardiologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is William Dreyer accepting new patients in Houston, TX?
Yes, Dr. William Dreyer is accepting new patients at this time.
Does Dr. William Dreyer offer online booking?
Please contact Dr. Dreyer's office at (832) 826-5600 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with William Dreyer?
Please contact Dr. Dreyer's office at (832) 826-5600 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. William Dreyer have?
Dr. William Dreyer is certified by the American Board of Pediatrics.
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