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Dr. John Terwilleger, MD

Dr. John Terwilleger, MD

Pediatrics*
40+ years of experience

Dr. John Terwilleger, MD is a pediatrician in Deltona, FL and has over 40 years of experience in the medical field. He graduated from Vanderbilt University School of Medicine in 1980. He is affiliated with medical facilities such as HCA Florida Lake Monroe Hospital and Halifax Health Medical Center. He is accepting new patients.

3.9 Star Rating
Based on 28 reviews 3.9 Star Rating (28 reviews)

Practice

1565 Saxon Blvd Ste 202 Deltona, FL 32725

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Dr. Terwilleger's Reviews

Likelihood to recommend Dr. Terwilleger

3.9
28 ratings, 10 with a written review
5 star
71%
71%
4 star
0%
0%
3 star
0%
0%
2 star
0%
0%
1 star
29%
29%

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Amazing
Both of my daughters had gone there from birth, I've always loved and respected him and his staff. We've moved now and oh how I miss them.
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
Tricia – Apr 11, 2024
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great staff, patient Dr
We've been going here for over 14 years with our 2 children, and we've always had the nicest staff. Dr. T is always patient, and will listen to your concerns. Very down to earth and matter of fact.
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
Nov 14, 2023
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Viola Office Manager is the rudest lady on this planet! Avoid at all cost! Go where you will be treated like a Human. This lady is Horrible!
What went well
No results
What could be improved
No results
1 other person found this helpful
Helpful
Sep 12, 2018
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We love Dr. T and his wonderful staff!!!
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
1 other person found this helpful
Helpful
Kelly in Orange City, FL – Aug 28, 2017
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Dr T is an awesome pediatrician! We have been going to him for 12 years now! I've NEVER seen him get upset like some of these other reviews say. He has always been patient and undersatanding and always answers my questions. Once you get to know him, you get to see his great sense of humor as well. His office is and waiting room is always spotless and his office staff and nurses are incredible! I highly recommend this practice!
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
Helpful
Longwood, FL – Jul 20, 2017
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Dr. Terwilleger is a wonderful doctor. Both of my children go to him. He is always patient and kind. He explains everything to me fully. He is so helpful answering all my questions. I feel he really pays attention to my children's medical needs.
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
Helpful
Deltona, FL – Jun 11, 2017
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Dr T is a wonderful physician!!! I cannot say enough about him! He's been my family's pediatrician for over 20 years. Recently my 2 year old was hospitalized and he called me daily to check on him... he truly cares for his patients and it shows! I wouldn't trust my kids with anyone else!
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
Helpful
Kristi in Deltona, FL – Apr 10, 2017
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Worst DR. Didn't knock on the door before entering. My daughter told him she had a bump on her ear. Its something in the inside. He said that it could be her acne, it could be an ear infection, it could be a lot of things and he was already almost done. I told him that as a mom I don't want to live with the it could be this or that. I would like answers. He then started screaming you want surgery they can cut you open took the laptop and slammed the door and shouted to the nurses the situation.
What went well
  • Appointment scheduling
  • Wait times
What could be improved
  • Office environment
  • 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
5 others found this helpful
Helpful
Deland, FL – Feb 22, 2017
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This is the worst pediatrician I have ever taken my children to. I never write reviews and but I feel that everyone should know how terrible this doctor is.I feel I have given him a fair chance and even though he is completely rude and has the personality of a stick I have still continued to go to him. But this was the last straw...He failed to diagnose a serious ear infection telling me her ear was fine. I took her to Nemours urgent care next day and was told it was a 9/10 in severity, in both.
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
7 others found this helpful
Helpful
Amanda in Debary, FL – Jun 07, 2016
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After trying to cram my son's 4 and 6 months vaccinations in one day, I asked to have them spaced out because my son is having surgery in 30 days and is very small. He got very angry, slammed his laptop shut and told me that he'd give my son 1 shot today and that I'll have to go elsewhere from now on. He slammed the door and shouted to his nurses about my situation. The nurse gave me a letter stating that he is no longer my children's pediatrician. He refused to see me and give me an explanation
What went well
  • Office environment
  • Staff friendliness
  • Wait times
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
11 others found this helpful
Helpful
Angel in deltona – Dec 17, 2015
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About Me

biography

Dr. John Terwilleger, MD is a pediatrician in Deltona, FL and has over 40 years of experience in the medical field. He graduated from Vanderbilt University School of Medicine in 1980. He is affiliated with medical facilities such as HCA Florida...read more
  • Pediatrics

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

  • Portsmouth Naval Hospital

    Internship Hospital, 1981
  • Vanderbilt University School Of Medicine

    Medical School, 1980
American Board of Medical Specialties®
American Board of Pediatrics®
Pediatrics
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

Southwest Volusia Medical Assoc.1565 Saxon Blvd Ste 202 Deltona, FL 32725
1

Affiliated Hospitals

  • Orlando Health Orlando Regional Medical Center

    52 Underwood St
    Orlando, FL 32806
    Recipient of 34
    hospital awards

    America's 250 Best Hospitals Award™ (2024, 2023)

    Top 5% in the nation for consistently delivering clinical quality

    View all awards

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

    82%
    Patients said they were given information about recovering at home

    2% lower than the national average

    75%
    Patients said that doctors always listened to them and explained things well

    1% lower than the national average

    View all patient feedback
  • Halifax Health /Uf Health Medical Center of Delton

    3300 E Halifax Crossing Blvd
    Deltona, FL 32725

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

    81%
    Patients said they were given information about recovering at home

    7% lower than the national average

    71%
    Patients said that nurses always listened to them and explained things well

    11% lower than the national average

    View all patient feedback
  • HCA Florida Lake Monroe Hospital

    1401 W Seminole Blvd
    Sanford, FL 32771
    Recipient of 8
    hospital awards

    Patient Safety Excellence Award™ (2025, 2024, 2023)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

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

    80%
    Patients said they were given information about recovering at home

    4% lower than the national average

    74%
    Patients said that nurses always listened to them and explained things well

    1% lower than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality