Greg Penilla, MD
Internal Medicine
1345 Smizer Mill Road, Suite 1100
Fenton, MO 63026 Directions
4.9 out of 5
204 verified ratings
204 Ratings, 81 Comments
The following ratings and reviews are based on verified feedback collected from independently administered patient experience surveys. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy.
Apr 21, 2026
We love Dr. Penilla and hope he never retires!
Apr 21, 2026
Dr. Penilla is professional, friendly, and very knowledgeable
Apr 17, 2026
Always very good!!!
Apr 13, 2026
Very knowledgeable on so many health subjects and takes time with us.
Apr 12, 2026
He is an excellent doctor.
Apr 10, 2026
10 star service
Apr 3, 2026
Very good doctor
Apr 1, 2026
always very helpful about my heath and concerns for over 20 years
Mar 11, 2026
Always listens and provides me some options.
Mar 7, 2026
The doctor is very versed in my health information
Mar 7, 2026
I’ve been a patient for many years. He’s the best!
Mar 4, 2026
A very meticulous and excellent physician. Thank you.
Mar 3, 2026
Excellent, caring doctor. Could not ask for more!
Feb 18, 2026
I had an additional question after the check up and Dr Penilla called me right back to provide all the answers I needed. Thank you for the personal touch and quickly responding
Feb 15, 2026
Love his ‘bedside’ manner and attention to my needs.
Feb 13, 2026
He is a great doctor!!
Feb 13, 2026
Dr. Penilla is an outstanding physician. I trust him and his sound recommendations.
Feb 10, 2026
Personable and over all good Dr.
Feb 6, 2026
Not only a great Doctor, but a great person. Everything is put on a personal level so I feel I get the best care there is. Super knowledge as well
Feb 5, 2026
I appreciate Dr. Penilla and his staff very much. They are great.
Feb 3, 2026
A good doctor
Jan 30, 2026
Thanks to Dr P for the confidence has has instilled due to his ability to care for others!
Jan 25, 2026
He cares what you think
Jan 24, 2026
Excellent Dr, feel real good about him being my primary
Jan 23, 2026
Excellent doctor! Listens and treats my concerns.
Jan 23, 2026
Dr. Penilla has been my doctor for more than 20 years.
Jan 22, 2026
Fine care.
Jan 20, 2026
HE IS VERY KNOWLEDGEABLE!!
Jan 17, 2026
He has always been a good Dr my entire time going to him.
Jan 10, 2026
Dr Penilla is always prompt thorough and thoughtful
Jan 9, 2026
He is a great Doctor
Jan 8, 2026
He takes time to listen and care for you as a person not just a number
Dec 31, 2025
He’s a great doctor. He’s been my primary doctor for many years.
Dec 30, 2025
He is very knowledgeable and patient with my questions and concerns. I have been his patient for many years and have suggested him to many of my friends.
Dec 24, 2025
Simply put, the best!
Dec 22, 2025
Doctor is knowledgeable, very concerned about me and my condition. He is kind and personable. We have known him for many years and. trust his judgement and expertise.
Dec 21, 2025
He was well prepared for my appointment. He asked questions that indicated he read my chart.
Dec 21, 2025
Always attentive and thorough with me and my history with him of about 40 years.
Dec 19, 2025
Doc is fantastic! I have had nothing but positive experiences with Dr.Panilla and his staff.
Dec 19, 2025
Dr Penilla is always nice and he has great bedside manner.
Dec 17, 2025
So happy to have Dr Penilla as my care provider!!
Dec 14, 2025
Very good Doctor to see
Dec 10, 2025
I've been with Dr. Penilla for decades and trust him.
Dec 9, 2025
Dr. Penilla always takes time to listen to my concerns. He is always on time and never makes you wait to see him.
Dec 9, 2025
Dr. Penilla is an excellent doctor. Always listens carefully, is very knowledgeable and caring.
Nov 23, 2025
Great experience every visit
Nov 19, 2025
Exceptionally professional
Nov 19, 2025
Dr Penilla addresses any concerns I have.
Nov 14, 2025
We’re Satisfied ! Great physician!
Oct 31, 2025
Always listens to my concerns