Overview
William Loudon is a General Surgeon and a Neurosurgery provider in Orange, California. Dr. Loudon has been practicing medicine for over 35 years is highly rated in 47 conditions, according to our data. His top areas of expertise are Bulging Fontanelles, Primitive Neuroectodermal Tumor (PNET), Hydrocephalus, and Sunken Fontanelles.
His clinical research consists of co-authoring 28 peer reviewed articles and participating in 1 clinical trial. MediFind looks at clinical research from the past 15 years.
Graduate Institution
Residency
Specialties
Licenses
Board Certifications
Languages Spoken
Gender
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- OTHER COMMERCIAL
Accepted plan types not found. Please verify directly with the provider.
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER MEDICARE
- POS
- PPO
- OTHER MEDICAID
- STATE MEDICAID
Locations
1010 W La Veta Ave, Orange, CA 92868
Additional Areas of Focus
Dr. Loudon 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.
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 Clinical Trials
USC Brain Tumor Center
Gabriel Zada, MD, MS, FAANS is Professor of Neurological Surgery at the Keck School of Medicine of the University of Southern California and a nationally recognized leader in brain tumor and skull base surgery. He serves as Surgical Director of the USC Brain Tumor Center, Co-Director of the USC Pituitary Center and Radiosurgery Center, and Vice Chair of Education for the Department of Neurosurgery. He is also Editor-in-Chief of Neurosurgical Focus, an international open-access journal of the Journal of Neurosurgery Publishing Group.Dr. Zada specializes in minimally invasive and endoscopic approaches to complex brain, pituitary, and skull base tumors and has performed more than 3,000 cranial operations during his career. His NIH-funded research program focuses on the genomics and epigenetics of brain and pituitary tumors, advancing precision medicine approaches in neurosurgical oncology.A prolific scholar, Dr. Zada has authored over 350 peer-reviewed publications and several textbooks in neurosurgery. Based on independent academic impact and expertise metrics, FindExpertMD ranks him the #1 neurosurgeon in California for multiple tumor (pituitary, meningioma) and skull base conditions and among the top neurosurgeons globally. Dr. Zada is highly rated in 66 conditions, according to our data. His top areas of expertise are Pituitary Tumor, Hypothalamic Tumor, Brain Tumor, Endoscopic Transnasal Transsphenoidal Surgery, and Gamma Knife Radiosurgery.
UCLA Health Westwood Neurosurgery
Marvin Bergsneider is a Neurosurgery provider in Los Angeles, California. Dr. Bergsneider is highly rated in 39 conditions, according to our data. His top areas of expertise are Pituitary Tumor, Hypothalamic Tumor, Brain Tumor, Endoscopic Transnasal Transsphenoidal Surgery, and Balloon Sinuplasty.
UCI Health
Jefferson Chen is a Neurosurgery provider in Orange, California. Dr. Chen is highly rated in 20 conditions, according to our data. His top areas of expertise are Chronic Subdural Hematoma, Subdural Hematoma, Hydrocephalus, Awake Craniotomy, and Gastrostomy.
Frequently Asked Questions about Dr. William G. Loudon
How do I make an appointment with Dr. William G. Loudon?
You can book an appointment with Dr. William G. Loudon by calling their office at 714-509-7070. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Is Dr. William G. Loudon a top-rated expert for Bulging Fontanelles?
MediFind is an objective health platform that identifies experts based on real-world data. Dr. William G. Loudon is classified as an Distinguished expert for Bulging Fontanelles, 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. William G. Loudon specialize in?
While Dr. William G. Loudon is a Neurosurgery, they have specific expertise in Bulging Fontanelles, Primitive Neuroectodermal Tumor (PNET), and Hydrocephalus. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Neurosurgery.
Does Dr. William G. Loudon participate in research or clinical trials?
Yes. Dr. William G. Loudon has published 28 articles and abstracts on conditions like Bulging Fontanelles. You can view a list of Dr. William G. Loudon's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.
Does Dr. William G. Loudon accept my insurance?
Dr. William G. Loudon accepts most major insurance plans, including Anthem BCBS and Blue Shield of California. We recommend calling the office directly at 714-509-7070 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
- Distinguished
- Bulging FontanellesDr. Loudon isDistinguished. Learn about Bulging Fontanelles.
- HydrocephalusDr. Loudon isDistinguished. Learn about Hydrocephalus.
- Primitive Neuroectodermal Tumor (PNET)Dr. Loudon isDistinguished. Learn about Primitive Neuroectodermal Tumor (PNET).
- Advanced
- Arachnoid CystsDr. Loudon isAdvanced. Learn about Arachnoid Cysts.
- Arteriovenous MalformationDr. Loudon isAdvanced. Learn about Arteriovenous Malformation.
- AstrocytomaDr. Loudon isAdvanced. Learn about Astrocytoma.
- Baller-Gerold SyndromeDr. Loudon isAdvanced. Learn about Baller-Gerold Syndrome.
- Binder's SyndromeDr. Loudon isAdvanced. Learn about Binder's Syndrome.
- Brain HerniationDr. Loudon isAdvanced. Learn about Brain Herniation.
- Experienced
- Abdominal Cystic LymphangiomaDr. Loudon isExperienced. Learn about Abdominal Cystic Lymphangioma.
- AchondroplasiaDr. Loudon isExperienced. Learn about Achondroplasia.
- Acoustic NeuromaDr. Loudon isExperienced. Learn about Acoustic Neuroma.
- AcrocephalopolydactylyDr. Loudon isExperienced. Learn about Acrocephalopolydactyly.
- Acromegaloid Facial Appearance SyndromeDr. Loudon isExperienced. Learn about Acromegaloid Facial Appearance Syndrome.
- Adrenal Insufficiency PediatricDr. Loudon isExperienced. Learn about Adrenal Insufficiency Pediatric.

