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Dr. Gregg Santilli, MD

Dr. Gregg Santilli, MD

Allergy & Immunology*
35+ years of experience

Dr. Gregg Santilli, MD is an allergist-immunologist in Allen, TX and has over 35 years of experience in the medical field. He graduated from Ohio State University College of Medicine in 1989. He is affiliated with medical facilities such as Baylor Scott & White Medical Center-McKinney and Texas Health Presbyterian Hospital Plano. He is accepting new patients and telehealth appointments.

4.9 Star Rating
Based on 59 reviews 4.9 Star Rating (59 reviews)

Practice

1101 Raintree Cir Ste 200 Allen, TX 75013
Telehealth available
(469) 656-1057

At a Glance

  • Area of Expertise
    Dr. Santilli specializes in the area of Allergy & Immunology. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    America's 100 Best Hospitals Award™ • See hospitals
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Dr. Santilli's Reviews

Likelihood to recommend Dr. Santilli

4.9
59 ratings, 48 with a written review
5 star
98%
98%
4 star
0%
0%
3 star
0%
0%
2 star
2%
2%
1 star
0%
0%

Your trust is our top concern.

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Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

Quality and Kindness
It's been 3 years since my last visit and the physicians and staff are nothing short of amazing.
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
Apr 13, 2022
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Very knowledgeable and friendly
Dr. Santilli Is very knowledgeable and friendly. I have full confidence in my allergy treatment plan. The policies and procedures at Southwest can get tedious and ridiculous at times but Dr. Santilli is the best part about Southwest.
What went well
  • Listened & answered questions
  • Trusted the provider's decisions
What could be improved
  • Office environment
  • Long wait times
Helpful
Jesse – Mar 03, 2022
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Dr Santilli
I am a long standing patient of SWAAC. I am in the maintenance phase after 5 years of allergy shots and can’t say enough about Dr. Santilli. There is 2 way communication about current and future care. He is attentive and is very thoughtful when discussing what needs to be done and when, especially since I am highly allergic to Penicillin/Amoxicillin and treating something as simple as a sinus infection. If you deal with allergies and want an honest recommendation and treatment options, he is the right person for you.
What went well
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Difficult to schedule appointment
Helpful
Tatiana – Mar 03, 2022
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Got my questions answered and visit was productive.
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Glenn Billingsley – Jan 18, 2022
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The best!
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
Yvette Robinson – Dec 10, 2021
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Super friendly and efficient!
What went well
  • Office environment
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Wait times
What could be improved
No results
Helpful
Cathy – Oct 19, 2021
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Doc is very personable, gets to the point and does a great job of explaining the diagnosis and treatment regimen. Would highly recommend to others.
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
Mrrk C – Oct 15, 2021
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Dr. Santilli is thorough and provides many options to one problem. We have severe allergies to food as well as the normal ragweed, etc. and he is able to navigate these areas fantastically for my small kids.
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
Oct 02, 2021
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Dr. Santilli helped me to significantly improve my understanding of my condition and better plan my rehabilitation. He exceeded my high expectations.
What went well
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Difficult to schedule appointment
Helpful
Allen K. – Sep 25, 2021
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Dr. Santilli is a wonderful doctor! Informative, personable, and forms great relationships with his patients.
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
Melissa P. – Sep 25, 2021
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Friendly staff and Dr. Santilli is very knowledgeable and listens to you.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
What could be improved
No results
Helpful
Sep 23, 2021
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Dr. Santilli is caring and knowledgeable and he has excellent and friendly 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
Helpful
Fareed Hussain – Sep 21, 2021
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Dr. Santilli and office staff were very professional and helpful.
What went well
No results
What could be improved
No results
Helpful
Chandler – Aug 10, 2021
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Dr Santilli is very caring and thorough. Strong desire to put corrective action in place to address allergy issues.
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Staff friendliness
What could be improved
No results
Helpful
Jay Isaacs – Aug 10, 2021
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Great doctor with excellent bedside manner. A real professional.
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
Phillip Allbritten – Aug 10, 2021
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Dr. Santilli is an amazing doctor and kind person. When he came in he broke down everything I was concerned about, talked us through the test process, and when it came time to make a plan of action he was very clear and ensured I understood everything. I feel so confident in his findings and treatment. His staff are also all very friendly, from check-in to check-out it was a great experience.
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
Jazz Chavez – Jul 01, 2021
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Refreshing to go to Doctor who wants to find answers versus a shrug and a prescription. Excited for next appointment!
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
Helpful
Ted – Jun 25, 2021
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I like Dr. Santilli. He's friendly, personable, and listens when I answer his questions.
What went well
No results
What could be improved
No results
Helpful
Jun 22, 2021
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Dr Santilli reviews past visits, reconfirms with me “is that correct?”, and “how can I help you today?”. He thoroughly covers everything, is patient, kind, and gives all alternatives and solutions - with this recommendation of which is best.
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
Cyndi – May 21, 2021
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Dr. Santilli and his staff were fantastic. Highly recommend to anyone looking for an allergist.
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
CM – Apr 16, 2021
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Leave a review

How was your experience with Dr. Santilli?

Know Before You Go

About Me

Watch Dr. Santilli's Video

care philosophy

Modern Allergy treatments allow us to modify the long term course of asthma and allergies for both children and adults.

biography

``I find the practice of Allergy highly rewarding as we continue to provide successful treatment options to cure bothersome seasonal and persistent allergies, recurrent sinus infections and even asthma in some cases. I truly enjoy caring for both...read more

  • Allergy & Immunology

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

  • University Of Cincinnati And Cincinnati Children's Hospital Medical Centers

    Fellowship Hospital, 1995

  • University Of Cincinnati College Of Medicine

    Residency Hospital, 1992

  • University Of Cincinnati College Of Medicine

    Internship Hospital, 1990

  • Ohio State University College Of Medicine

    Medical School, 1989

  • Ohio State University

    Undergraduate School, 1985
American Board of Medical Specialties®
American Board of Allergy & Immunology®
- 
Allergy & Immunology
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.

Learn more about medical license public record check

  • Texas Monthly Magazine, Texas "Super Doctors List; 2010, 2008, 2005, 12/2010, 2

Focus on Nasal Polyps

Locations

Practice

Gregory Alan Ennis M.D. P.A.1101 Raintree Cir Ste 200 Allen, TX 75013
1
Trinity Pediatrics PA6100 Windcom Ct Ste 101 Plano, TX 75093
2
  • Call
  • Fax
  • Hours
    • Mon: 8:30am - 5:00pm
    • Tue: 8:30am - 6:00pm
    • Wed: 8:30am - 6:00pm
    • Thu: 8:30am - 5:00pm
    • Fri: 7:30am - 2:00pm
  • Directions

Air Care

Allergy, Immunology and Respiratory Care, PA3600 Communications Pkwy Ste 675 Plano, TX 75093
3

Air Care

Air Care915 W Exchange Pkwy Ste 160 Allen, TX 75013
4

Air Care PA

Air Care8440 Walnut Hill Ln Ste 350 Dallas, TX 75231
5

Practice

Southwest Allergy & Asthma Center5012 S US Highway 75 Ste 150 Denison, TX 75020
6

Southwest Allergy and Asthma Center, Plano, TX

Southwest Allergy and Asthma Center1101 Raintree Cir Allen, TX 75013
7

Affiliated Hospitals

  • Baylor Scott & White Medical Center-McKinney

    5252 W University Dr
    McKinney, TX 75071
    Recipient of 7
    hospital awards

    America's 100 Best Hospitals Award™ (2025)

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

    America's 250 Best Hospitals 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.

    86%
    Patients said they were given information about recovering at home

    2% higher than the national average

    77%
    Patients said that doctors always listened to them and explained things well

    1% higher than the national average

    View all patient feedback

  • Texas Health Presbyterian Hospital Plano

    6200 W Parker Rd
    Plano, TX 75093
    Recipient of 14
    hospital awards

    America's 250 Best Hospitals Award™ (2025)

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

    Patient Safety Excellence Award™ (2025, 2024)

    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.

    84%
    Patients said they were given information about recovering at home
    75%
    Patients said that doctors always listened to them and explained things well

    1% lower than the national average

    View all patient feedback

  • Medical City Plano

    3901 W 15th St
    Plano, TX 75075
    Recipient of 49
    hospital awards

    America’s 50 Best Hospitals for Surgical Excellence Award™ (2025, 2024)

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

    America's 250 Best Hospitals 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.

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

    2% lower than the national average

    75%
    Patients said that nurses always listened to them and explained things well
    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality