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Dr. Frank Mongillo III, MD

Dr. Frank Mongillo III, MD

Internal Medicine*
30+ years of experience

Dr. Frank Mongillo III, MD is an internist in New Haven, CT and has over 30 years of experience in the medical field. He graduated from George Washington University School of Medicine & Health Sciences in 1994. He is affiliated with Yale New Haven Hospital. He is accepting new patients and telehealth appointments.

3.7 Star Rating
Based on 19 reviews 3.7 Star Rating (19 reviews)

Practice

26 Elm St New Haven, CT 06510
Telehealth available

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Dr. Mongillo III's Reviews

Likelihood to recommend Dr. Mongillo III

3.7
19 ratings, 4 with a written review
5 star
53%
53%
4 star
16%
16%
3 star
5%
5%
2 star
5%
5%
1 star
21%
21%

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An excellent , competent and well liked doctor!
Dr Mongillo spent a lot of time listening, asking questions, answering questions and giving the patient needed info. He has an optimistic and very clear thinking approach to the Knowledge of Modern Medicine! A most competent doctor! Great bedside manner! You can’t go wrong getting his diagnosis or opinion! ! Wonderful Professional of High Integrity! He is easy to work with as your doctor! My Dad, Mom and I have known him as our family doctor for more than 20 years! Bravo Dr Mongillo!
What went well
  • I felt respected
  • 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
Helpful
Jun 13, 2023
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Dr. Mongillo is a patient and competent physician. He needs to modernize his practice, add an email address for patient contact, address the lack of phone availability for his office, and join/use the Yale MyCharts portal.
What went well
  • Listened & answered questions
  • Appointment wasn't rushed
What could be improved
  • Office environment
  • Difficult to schedule appointment
Helpful
Jeffrey Haney – Dec 15, 2021
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His office staff never answers the phone and they take lunch from 11:00 AM until 2:00 PM and then they resume not answering the phone.
What went well
  • Office environment
What could be improved
  • Difficult to schedule appointment
  • Appointment was rushed
  • Didn't trust the provider's decisions
7 others found this helpful
Helpful
New Haven, CT – Mar 02, 2017
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He admitted me about 10 years ago and thank goodness He did. Things could have gone hill down quickly. I still tell Him that he saved my life
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
2 others found this helpful
Helpful
N BROWN in New Haven, CT – May 26, 2016
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About Me

biography

Dr. Frank Mongillo III, MD is an internist in New Haven, CT and has over 30 years of experience in the medical field. He graduated from George Washington University School of Medicine & Health Sciences in 1994. He is affiliated with Yale New Haven Hospital. He is accepting new patients and telehealth appointments.
  • 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.

  • George Washington University School Of Medicine & Health Sciences

    Medical School, 1994
American Board of Medical Specialties®
American Board of Internal Medicine®
Internal Medicine
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.

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Locations

Practice

Office26 Elm St New Haven, CT 06510
1

Affiliated Hospitals

  • Yale New Haven Hospital

    20 York St
    New Haven, CT 06510
    Recipient of 6
    hospital awards

    America's 250 Best Hospitals Award™ (2025, 2024)

    Top 5% in the nation for consistently delivering clinical quality

    View all awards

    How patients felt about the care they received at this hospital.

    85%
    Patients said they were given information about recovering at home

    1% higher than the national average

    76%
    Patients said that doctors always listened to them and explained things well
    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality