Dr. Jack L. Brenner

Gastroenterology
Elzbieta Darzynkiewicz MD PC
1974 Maple Hill St, 
Yorktown Heights, NY 
Elzbieta Darzynkiewicz MD PC
1974 Maple Hill St, 
Yorktown Heights, NY 

Overview

Jack Brenner is a Gastroenterologist practicing medicine in Yorktown Heights, New York.

His clinical expertise encompasses Diarrhea, Trichohepatoenteric Syndrome, Esophagitis, Colonoscopy, and Gastrectomy.

He is actively involved in clinical research, co-authoring 3 peer reviewed articles.

Specialties

Gastroenterology

Licenses

Internal Medicine in NY

Hospital Affiliations

Northern Westchester Hospital

Languages Spoken

English

Gender

Male

Insurance

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

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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
Cigna
  • EPO
  • HMO
  • PPO
EmblemHealth
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE PART D
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 First
  • HMO
  • POS
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
MetLife
  • PPO
MVP Health
  • EPO
  • PPO
Sunshine Health
  • EPO
  • HMO
TeamCare
  • OTHER COMMERCIAL
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 11 Less Insurance Carriers -

Locations

Elzbieta Darzynkiewicz MD PC
1974 Maple Hill St, Yorktown Heights, NY 10598
Other Locations
Office
3630 Hill Blvd, Jefferson Valley, NY 10535

Additional Areas of Focus

Dr. Brenner 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)

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.

3 Total Publications

Decompensated Toxic Shock in a Gender-Diverse Adolescent: A Pediatric Emergency Medicine Simulation Case.
Decompensated Toxic Shock in a Gender-Diverse Adolescent: A Pediatric Emergency Medicine Simulation Case.
Journal: MedEdPORTAL : the journal of teaching and learning resources
Published: January 23, 2026
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Frequently Asked Questions about Dr. Jack L. Brenner

How do I make an appointment with Dr. Jack L. Brenner?

You can book an appointment with Dr. Jack L. Brenner by calling their office at 914-962-5596. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Jack L. Brenner a top-rated expert for Diarrhea?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Jack L. Brenner is classified as an Experienced expert for Diarrhea, 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. Jack L. Brenner specialize in?

While Dr. Jack L. Brenner is a Gastroenterology, they have specific expertise in Diarrhea, Trichohepatoenteric Syndrome, and Esophagitis. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Gastroenterology.

Does Dr. Jack L. Brenner participate in research or clinical trials?

Yes. Dr. Jack L. Brenner has published 3 articles and abstracts on conditions like Diarrhea. You can view a list of Dr. Jack L. Brenner's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Jack L. Brenner accept my insurance?

Dr. Jack L. Brenner accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 914-962-5596 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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