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Dr. David Leff, DO

Dr. David Leff, DO

Gastroenterology*
30+ years of experience

Dr. David Leff, DO is a gastroenterologist in Mesa, AZ and has over 30 years of experience in the medical field. Dr. Leff has extensive experience in Pancreatic Disease and Esophageal Disorders. He graduated from Des Moines University College of Osteopathic Medicine in 1991. He is affiliated with Banner Baywood Medical Center. He is accepting new patients and telehealth appointments.

2.6 Star Rating
Based on 38 reviews 2.6 Star Rating (38 reviews)

Practice

3638 E Southern Ave Ste C108 Mesa, AZ 85206
Telehealth available

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Compare Dr. Leff with our nearby Gastroenterologists at Chandler Regional Medical Center.

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Dr. Leff's Reviews

Likelihood to recommend Dr. Leff

2.6
38 ratings, 16 with a written review
5 star
37%
37%
4 star
3%
3%
3 star
3%
3%
2 star
3%
3%
1 star
55%
55%

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Deserves 0 stars. Rude; omnipotent; just shockingly horrible.
What went well
No results
What could be improved
No results
2 others found this helpful
Helpful
Maria Power – Jul 28, 2024
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Fantastic
He is caring, never rushes the process, his listening skills are outstanding. He asks pertinent questions and offers his patient his professional opinion, making sure they understand so as the patient can decide on their treatment options. His kindness to me is something I will never forget. Thank you, Dr. Leff.
What went well
No results
What could be improved
No results
2 others found this helpful
Helpful
Mary Priest – Oct 21, 2023
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Wow after reading the reviews realized I was not the only one to have a horrible experience even my husband couldn’t believe how combative this guy was ….DONT go to him he is extremely unprofessional and does not have any answers just wants to argue!
What went well
  • Appointment scheduling
  • Wait times
What could be improved
  • I didn't feel respected
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
3 others found this helpful
Helpful
Oct 10, 2023
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Dr. Leff is fantastic!
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 others found this helpful
Helpful
Stephanie Johnson – Feb 07, 2023
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He is an idiot
What went well
No results
What could be improved
  • Didn't trust the provider's decisions
8 others found this helpful
Helpful
Dec 19, 2020
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Dr. Leff was arrogant and belittling. He was highly recommended to me by a doctor and I went to him expecting professionalism. Absolutely would not recommend him and didn't appreciate his diagnosis or demeanor.
What went well
  • Office environment
  • Appointment scheduling
  • Wait times
What could be improved
  • Didn't listen or answer questions
  • Didn't trust the provider's decisions
6 others found this helpful
Helpful
Dec 02, 2020
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Dr. Leff took good care of my wife's colitis problem. The initial consult and subsequent endoscopy were very professional. He has a warm demeanor and is quite friendly. His office and endoscopy staff were also excellent. We feel confident in him and his medical management.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
2 others found this helpful
Helpful
Nov 06, 2020
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My husband and I have been patients of Dr. Leff for more than 10 years and I could not be happier to have him as our doctor. He always take his time to explain and asks if we have additional questions. I never felt rushed or ignored.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 others found this helpful
Helpful
Karin B Perez – Jun 16, 2020
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He performed an endoscopy on me. He did not do a complete job. He was arrogant, short and rude afterwards when giving my husband the results. Put mild severe for the results. Duh. Mild severe. Just wanted to give me pills instead of finding the reason for the quick onset of acid reflux. Do not waste your time with this Dr.
What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
6 others found this helpful
Helpful
Nov 10, 2019
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terrible and tried to write a review and will not except it. All in all it was terrible. He got upset because I asked him to repeat himself as I am hard of hearing. He insulted me by telling me I was drunk. I have a speach problem and of course my feelings were hurt. I will not back to be insulted and hurt. With my hearing problem I was afraid to have him repeat what he said so I still don't know what's wrong with me.
What went well
No results
What could be improved
No results
8 others found this helpful
Helpful
Apr 16, 2019
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Quiet, efficient doctor and a pleasure to see. The whole family goes to him.
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Phoenix, AZ – Jun 07, 2017
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I really liked Dr. Leff. He is the one doctor who was able to help me with my digestion problems. He seems to genuinely care and takes time to figure out the problem and come up with a solution. Five stars for him!
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Texarkana, TX – May 26, 2017
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Dr Leff has an over inflated ego which effects his job performance. His staff member "Kimmy" is a lazy inaficient liar. This was a HORRIBLE experiance
What went well
No results
What could be improved
  • Office environment
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
11 others found this helpful
Helpful
Chris in Mesa, AZ – Nov 23, 2016
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Waited 3 days in hospital before he saw me despite a rather urgent issue. He shook me awake and immediately started to interrogate me without waiting for me to wake. I told him a local ER had sent me to the hospital for specific tests. He said, "No, they sent you here to see ME." Epitome of arrogance. When I described my medical history he laughed. Tried to correct me about my own life. When I challenged him, he said we weren't a good match. I agreed. NEVER trust a Dr. that doesn't listen!
What went well
No results
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
8 others found this helpful
Helpful
Emily in Chandler, AZ – Sep 09, 2016
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Dr Leff came to my room for a consult on a very complex GI issue. He argued with me about my symptoms, did not offer any assistance and I was glad to see him leave the room.
What went well
No results
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
4 others found this helpful
Helpful
Chandler, AZ – Sep 08, 2016
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I just met Dr. Leff in my hospital room waiting for an operation. I'd never met or heard of him before but he started questioning me about my conditions and other doctors. Said he KNEW ALL THESE GUYS and was working with my surgeon . Didn't have a business card and refused to produce any ID. Tried to lift my shirt (gown) and examine me without asking. Became offended at my skepticism; fact he was accompanied by hospital nurse was supposed to be all I needed. VERY weird experience.
What went well
No results
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
6 others found this helpful
Helpful
Unhappy in Mesa, AZ – Mar 21, 2016
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Know Before You Go

About Me

care philosophy

I believe in a wholistic, caring and compassionate approach to treating gastrointestinal symptoms/diseases

  • Gastroenterology

  • Internal Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Western Penn Hospital

    Fellowship Hospital, 1997

  • Mercy Hospital

    Residency Hospital, 1993

  • St Francis Central Hospital

    Internship Hospital, 1992

  • Des Moines University College Of Osteopathic Medicine

    Medical School, 1991

  • University Of Pittsburgh / Main Campus

    Undergraduate School, 1986
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
Gastroenterology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

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Locations

Practice

Central Arizona Medical Associates3638 E Southern Ave Ste C108 Mesa, AZ 85206
1

Practice

Office2158 N Gilbert Rd Ste 103 Mesa, AZ 85203
2

Practice

Banner Baywood Medical Center6644 E Baywood Ave Mesa, AZ 85206
3
See all Gastroenterologists in Mesa, AZ