Guillermo Madero, M.D.

Practice: Gonzaba Medical Group

Specialty: Internal Medicine: Geriatrics

Office locations: San Antonio, TX

Most recent review: 3 days ago New
4.9 out of 5
1.5K Ratings
637 Comments

Dr. Guillermo Madero graduated from the University of Monterrey Mexico, where he received his medical degree. After living in Mexico for 25 years, and with only two pieces of luggage, Dr. Madero moved to New York City for his residency and fellowship at Staten Island University Hospital. Dr. Madero started with Gonzaba Medical Group in 2021.

4.9 out of 5
1.5K Ratings
637 Comments

Dr. Guillermo Madero graduated from the University of Monterrey Mexico, where he received his medical degree. After living in Mexico for 25 years, and with only two pieces of luggage, Dr. Madero moved to New York City for his residency and fellowship at Staten Island University Hospital. Dr. Madero started with Gonzaba Medical Group in 2021.

The reviews listed below were collected independently of Gonzaba Medical Group through rater8. Each review represents an authentic and verified patient experience.

The dr answered all my questions so that l could understand.

Rated 5 out of 5 stars
(3 days ago) Oct-2026

Very good Doctor. Did help me alot.

Rated 5 out of 5 stars
(4 days ago) Oct-2026

Very good. Excellent

Rated 5 out of 5 stars
(5 days ago) Oct-2026

Excellent caring and through

Rated 5 out of 5 stars
(1 week ago) Oct-2026

Excellent !!!

Rated 5 out of 5 stars
(2 weeks ago) Oct-2026

very informative

Rated 5 out of 5 stars
(3 weeks ago) Oct-2026

Great doctor very attentive..

Rated 5 out of 5 stars
(1 month ago) Oct-2026

My First Visit it was Amazing I felt very Welcomed and I Appreciate all your Hard Work Thank You🙏🏼

Rated 5 out of 5 stars
(1 month ago) Oct-2026

All went well with my vitals. Just need a couple of things to get done Very positive outlook.

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Top notch Dr. Very through and listens. I highly recommend.

Rated 5 out of 5 stars
(1 month ago) Sep-2026
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