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

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Dr. Jack Brenner has practiced gastroenterology and internal medicine for 59 years and is affiliated with Northern Westchester Hospital. He treats chronic kidney disease, chronic kidney disease stage 5, and claudication. He completed his residency at Mount Sinai Medical Center and sees patients in Jefferson Valley, New York. He speaks English, Italian, and Spanish. Patients on Vitals rate Dr. Brenner 4.58 out of 5.

Overview based on verified provider data

accepting new patients
4.6

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

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me

Based on patient feedback. Read the reviews

Dr. Brenner's Ratings and Reviews

4.6

33 Ratings with 10 written Reviews

Average Wait Time 21 Minutes

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Dr. Brenner?

Patients’ Perspective

Gave an accurate diagnosis: (16) Did WellNeeds Improvement (1)
Had a good bedside manner: (16) Did WellNeeds Improvement (1)
Spent time with me: (16) Did WellNeeds Improvement (1)
Provided follow-up after the visit: (16) Did WellNeeds Improvement (1)
Flexible scheduling: (15) Did WellNeeds Improvement (1)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

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.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

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.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

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.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

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.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit

Needs Improvement

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!!!!!

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

March 1st, 2014

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

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

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.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

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.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

January 13th, 2010

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sometimes late but worth waiting for

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

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	Theresa Obonyano, APRN	Lynn Collette-Zachar, APRN	Dr. Eric Yoon, MD
Gastroenterology	Gastroenterology	Gastroenterology	Gastroenterology
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.6 (33 Ratings)	0 (0 Ratings)	4 (4 Ratings)	5 (3 Ratings)
59 Years of Experience			13 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English, Italian, Spanish	Speaks English	Speaks English	Speaks English
Jefferson Valley , NY	Sacramento , CA	Tallahassee , FL	New York , NY
Med School: Universita Campus Biomedico Di Romas	Med School: The University of Texas Health Science Center at Houston	Med School: Regis College	Med School: Stony Brook University School of Medicine
Current Profile	View Profile	View Profile	View Profile

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Wellcare

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

Dr. Jack Leon Brenner holds an active medical license in the state of New York.

Medical License

Medical Doctor with an active medical license in the state of New York that expires in 2027.

Education & Training

Residency

Completed their residency at Mount Sinai Medical Center.

Medical School

Graduated from Universita Campus Biomedico Di Romas in 1968 and Universita Degli Studi Di Roma La Sapienza Facolta Di Farmacia E Medicina in 1967.

NPI Number

Dr. Brenner's NPI number is 1033287347.

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Does Dr. Jack Brenner accept my insurance?: You can see the insurance plans that Dr. Jack Brenner accepts on their Vitals profile.
How can I make an appointment with Dr. Jack Brenner?: You can find contact information for Dr. Jack Brenner here on Vitals.
Does Dr. Jack Brenner accept virtual/telehealth appointments?: Dr. Jack Brenner has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
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.
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.

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