Expertise in
3
conditions

Dr. Ron S. Newfield

Pediatric Endocrinology
Rady Children's Hospital San Diego
3020 Childrens Way, 
San Diego, CA 
Accepting New Patients
Referral may be required
Before you request
Expertise in
3
conditions
Rady Children's Hospital San Diego
3020 Childrens Way, 
San Diego, CA 

Overview

Ron Newfield is a Pediatric Endocrinologist practicing medicine in San Diego, California.

Dr. Newfield is highly rated in 3 conditions, according to our data. His clinical expertise encompasses Congenital Adrenal Hyperplasia (CAH), Short Stature (Growth Disorders), Intersex, Malnutrition, and Thyroidectomy.

He is actively involved in clinical research, co-authoring 37 peer reviewed articles and participating in 2 clinical trials. Dr. Newfield is currently accepting new patients.

Specialties

Pediatric Endocrinology

Licenses

Pediatric Endocrinology in CA

Languages Spoken

English

Gender

Male

Insurance

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

Find your insurance
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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
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
CareFirst
  • HMO
  • POS
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
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
Health Net

Accepted plan types not found. Please verify directly with the provider.

Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Inland Empire Health Plan
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
LA Care
  • HMO
  • MANAGED MEDICAID PLAN
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Premera Blue Cross
  • INSURANCE PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • 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 12 Less Insurance Carriers -

Locations

Rady Children's Hospital San Diego
3020 Childrens Way, San Diego, CA 92123

Additional Areas of Focus

Dr. Newfield 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.

Non-Alcoholic Fatty Liver Disease
Nonalcoholic Steatohepatitis (NASH)
Pediatric Growth Hormone Deficiency

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.

2 Clinical Trials

A Phase 1/2, First-in-Human, Open-Label, Dose-Escalation Study of the Safety and Efficacy of Gene Therapy for Congenital Adrenal Hyperplasia Through Administration of an Adeno-Associated Virus (AAV) Serotype 5-Based Recombinant Vector Encoding the Human CYP21A2 Gene
A Phase 1/2, First-in-Human, Open-Label, Dose-Escalation Study of the Safety and Efficacy of Gene Therapy for Congenital Adrenal Hyperplasia Through Administration of an Adeno-Associated Virus (AAV) Serotype 5-Based Recombinant Vector Encoding the Human CYP21A2 Gene
Enrollment Status: Active_not_recruiting
Publish Date: December 23, 2025
Intervention Type: Biological
Study Drug: AAV BBP-631
Study Phase: Phase 1/Phase 2
A Phase 3, Open-label, Randomized, Multicenter, 12 Months, Efficacy and Safety Study of Weekly MOD-4023 Compared to Daily Genotropin - Therapy in Pre-pubertal Children With Growth Hormone Deficiency
A Phase 3, Open-label, Randomized, Multicenter, 12 Months, Efficacy and Safety Study of Weekly MOD-4023 Compared to Daily Genotropin - Therapy in Pre-pubertal Children With Growth Hormone Deficiency
Enrollment Status: Completed
Publish Date: July 20, 2025
Intervention Type: Drug
Study Drugs: MOD-4023, Somatropin
Study Phase: Phase 3
View 1 Less Clinical Trial

37 Total Publications

Clinical burden of classic congenital adrenal hyperplasia and glucocorticoid-related complications: a claims analysis.
Clinical burden of classic congenital adrenal hyperplasia and glucocorticoid-related complications: a claims analysis.
Journal: Journal of the Endocrine Society
Published: February 20, 2026
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Rady Children's Hospital San Diego

3020 Childrens Way, 
San Diego, CA 
 (0.1 miles away)
858-966-4032
Languages Spoken:
English
See accepted insurances
Accepting New Patients

Carla Demeterco-Berggren is a Pediatric Endocrinologist practicing medicine in San Diego, California. Dr. Demeterco-Berggren is highly rated in 2 conditions, according to our data. Her clinical expertise encompasses Diabetic Ketoacidosis, Type 1 Diabetes (T1D), Short Stature (Growth Disorders), and Precocious Puberty. Dr. Demeterco-Berggren is currently accepting new patients.

Frequently Asked Questions about Dr. Ron S. Newfield

How do I make an appointment with Dr. Ron S. Newfield?

You can book an appointment with Dr. Ron S. Newfield by calling their office at 858-966-4032. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Ron S. Newfield a top-rated expert for Congenital Adrenal Hyperplasia (CAH)?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Ron S. Newfield is classified as an Advanced expert for Congenital Adrenal Hyperplasia (CAH), 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. Ron S. Newfield specialize in?

While Dr. Ron S. Newfield is a Pediatric Endocrinology, they have specific expertise in Congenital Adrenal Hyperplasia (CAH), Short Stature (Growth Disorders), and Intersex. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Pediatric Endocrinology.

Does Dr. Ron S. Newfield participate in research or clinical trials?

Yes. Dr. Ron S. Newfield has published 37 articles and abstracts on conditions like Congenital Adrenal Hyperplasia (CAH). You can view a list of Dr. Ron S. Newfield's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Ron S. Newfield accept my insurance?

Dr. Ron S. Newfield accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 858-966-4032 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

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