Dr. Jack L. Brenner, MD | Jefferson Valley, NY | Gastroenterology

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Dr. Jack Brenner is a gastroenterologist and internal medicine physician who earned his medical degree from Universita Campus Biomedico Di Roma. He completed his residency at Mount Sinai Medical Center and brings nearly six decades of clinical experience to his practice. Dr. Brenner is fluent in Spanish, Italian, and English.

Dr. Brenner practices at Stoneleigh Medical Group in Jefferson Valley, New York, and maintains hospital privileges at Northern Westchester Hospital. His expertise includes treating abdominal pain, including cases during pregnancy, and managing gastroesophageal reflux disease. He performs specialized imaging procedures such as CT scans of the abdomen and CT enterography to diagnose digestive conditions. Patients rate Dr. Brenner 4.6 out of 5 stars on average.

AI-generated from data on this provider profile.

accepting new patients
4.6

33 Ratings
59 years of experience
20 insurance plans accepted
speaks Spanish, Italian, English
Mount Sinai Medical Center
10 written reviews
2 specialties
11 areas of expertise
2 board certifications
1 hospital affiliation
1 office location
Male

33 ratings & reviews

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Showing 1 to 10 of 10 reviews

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I have been under the care of Dr. Brenner for 25 years and don't recall a single consultation where he wasn't extremely friendly and helpful. Last spring, I had a GI bleed that seriously decreased my levels of hemoglobin and hematocrit to the point where an immediate trip to the hospital was a consideration. While Dr. Brenner wasn't working at the hospital at the time (due to Covid), he made sure I was immediately assessed and ultimately checked in for two days of tests. Not all doctors would have inconvenienced their busy peers by sending me to the emergency room, but Dr. Brenner was more concerned about ME. Sure enough, when I arrived at the hospital my blood counts were worse and I was checked in for surveillance, tests, and treatment. It is so good that I had Dr. Brenner as my advocate. Things could have been worse for me if I didn't receive emergency treatment. This is a doctor that CARES and I hope he never retires!

October 23rd, 2020

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Dr Brenner is great doctor i would be lost if he ever decided to retire.

July 5th, 2018

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I am Dr. Brenner pation for more than 20 years. I am glad that I know him. He listens to you and propose best solution. I refer him everybody including my family.

March 7th, 2018

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He understandably runs a little behind because he loves to talk to and be with his patients , very smart man and lot's of experience. a doctors Dr.

November 8th, 2017

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Going to Dr Brenner is more like going to your neighbors. He and his staff are friendly, professional and helpful. Dr Brenner always takes the time to explain his findings, and his intentions regarding your problems.

January 17th, 2017

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I have been a patient of Dr. Brenner for 20 years, I recently moved and I am lost with out him!!! He is a wonderful and caring physician!!!!!

March 1st, 2014

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Takes his time to diagnose the issues. Also a caring Doctor.

November 17th, 2012

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Was informative, took the time to answer all my questions. Great attitude. Gave me great confidence for the procedure I was having.

May 2nd, 2012

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Great bedside manner, very intelligent. He's been doing this a long time and it shows. Also, this might seem like a minor thing but he gives the best shot I've ever had. You don't even feel it.

January 13th, 2010

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sometimes late but worth waiting for

January 13th, 2010

Stoneleigh Medical Group

3630 Hill Blvd Ste 402Jefferson Valley, NY 10535

Mon8:00 am - 5:00 pm

Tue8:00 am - 5:00 pm

Wed8:00 am - 5:00 pm

Thu8:00 am - 5:00 pm

Fri8:00 am - 5:00 pm

SatClosed

SunClosed


Dr. Jack Leon Brenner, MD	Dr. Michael Dann, MD	Rebecca Humphries, APRN	Dr. Connie Park, MD
Gastroenterology	Gastroenterology	Gastroenterology	Gastroenterology
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.6 (33 Ratings)	5 (8 Ratings)	0 (0 Ratings)	5 (8 Ratings)
59 Years of Experience	22 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks Spanish, Italian, English	Speaks English	Speaks English	Speaks English
Jefferson Valley , NY	NEW YORK , NY	SACRAMENTO , CA	New York , NY
Med School: Universita Campus Biomedico Di Romas	Med School: State University of New York	Med School: Emory University	Med School: State University of New York
Current Profile	View Profile	View Profile	View Profile

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Optum Health
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Abdominal Pain
Acid Reflux Disease (Gastroesophageal Reflux / GERD)
Acid Reflux Disease (GERD)
Celiac Disease
Colonoscopy
Constipation
Hemorrhoids
Hepatitis C
Internal Medicine
Irritable Bowel Syndrome (IBS)
Ulcerative Colitis

MEDICAL LICENSE

Medical Doctor, New York, 2027, Active

EDUCATION & TRAINING

Residency

Mount Sinai Medical Center

Medical School

Universita Campus Biomedico Di RomasGraduated in 1968

Universita Degli Studi Di Roma La Sapienza Facolta Di Farmacia E MedicinaGraduated in 1967

Claudette Gemma Faucher-Charles
Nurse Practitioner
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Critical Care Medicine
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(2)
Dr. Shayna Solomon Zachary
Pain Medicine
15 Years Exp | Stamford, CT
(0)
Dr. Martin Lefkowitz
Nephrology
46 Years Exp | Suffern, NY
(0)
Dr. Margarita Revzin
Diagnostic Radiology
23 Years Exp | Norwalk, CT
(0)
Dr. Joseph Henry Hoffman
Critical Care Medicine
43 Years Exp | Park Ridge, NJ
(0)
Dr. James William Altmann
Anesthesiology
24 Years Exp | Stamford, CT
(2)
Dr. Jay B Tuchman, MD
Anesthesiology
23 Years Exp | Pittsburgh, PA
(1)

What languages does Dr. Jack Brenner speak?: Dr. Jack Brenner speaks Spanish, Italian, and English.
Where is Dr. Jack Brenner's office located?: Dr. Jack Brenner's office is located at 3630 Hill Blvd Ste 402, Jefferson Valley, NY, 10535.
Is Dr. Jack Brenner accepting new patients?: Dr. Jack Brenner is accepting new patients on Vitals. View Dr. Jack Brenner's profile on Vitals to make an appointment.
Does Dr. Jack Brenner accept my insurance?: You can see the insurance plans that Dr. Jack Brenner accepts on their Vitals profile.
Which hospitals is Dr. Jack Brenner affiliated with?: Dr. Jack Brenner is affiliated with Northern Westchester Hospital.

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