Mario Alcantara, MD | San Antonio, TX | Colorectal Surgeon

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Mario Alcantara works in San Antonio, TX and 1 other location and specializes in Colorectal Surgery. Mario Alcantara is affiliated with Baptist Medical Center.

accepting new patients
4.4

72 Ratings
61 insurance plans accepted
speaks English
28 written reviews
1 award
1 specialty
10 areas of expertise
2 board certifications
1 hospital affiliation
2 office locations
Male

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me

Based on patient feedback. Read the reviews

Mario Alcantara's Ratings and Reviews

4.4

72 Ratings with 28 written Reviews

Average Wait Time 18 Minutes

How was your appointment with
Mario Alcantara?

Patients’ Perspective

Gave an accurate diagnosis: (34) Did WellNeeds Improvement (1)
Had a good bedside manner: (32) Did WellNeeds Improvement (2)
Spent time with me: (33) Did WellNeeds Improvement (2)
Provided follow-up after the visit: (30) Did WellNeeds Improvement (2)
Flexible scheduling: (38) Did WellNeeds Improvement (3)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

72 ratings & reviews

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Showing 1 to 10 of 28 reviews

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Very caring and concerned

March 16th, 2026 | Source: Partner

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He is an excellent doctor, very friendly and attentive in his work.0

March 16th, 2026 | Source: Partner

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The doctor was very caring and took his time explaining, he never acted rushed to leave.

February 27th, 2026 | Source: Partner

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Excellent

February 17th, 2026 | Source: Partner

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Good experience Like doctor

January 23rd, 2026 | Source: Partner

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Excelent service and very kind Doctor

August 7th, 2025 | Source: Partner

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Dr. Alcantara is an Excellent surgeon. I will be happy to recommend him to my family and friends. His office staff was more than happy to help me, especially Joe. Dr. Alcantara has a positive and confident bedside manner. He did a great job explaining the procedure I had, to me, and answered my questions. I did not feel rushed during my appointment. He came and saw me before my surgery to see if I had any questions. I asked if I could go home after surgery instead of staying in the hospital and that was fine with him. The hospital staff at Northeast Baptist Hosp. was great, especially the RN who was able to start my IV with only one poke. The Anesthesiologist he uses on Tuesday was very good, I had no pain after surgery. I picked up my pain medicine and antibiotics at 5:30 pm on the day I had surgery. Thank you Dr. Alcantara and everyone for taking such good care of me. Cheryl Rowwll

July 29th, 2021

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Quick to order a surgery and sent me home without pain meds as promised. Called several times to ask and was lied to when they dropped the ball. The next day after up all night in severe pain, they finally called one in after lying to us that they had. Staff treated me like dirt and brushed me off and hung up on me. These people actually performed a surgery and sent me home with NOTHING for 24 hours. They do not care about patients, only covering their own. Worst experience from a doctor’s office ever. I didn’t even get to see Dr. A the day of surgery for questions. Patients beware.

April 30th, 2020

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Quick to order a surgery and sent me home without pain meds as promised. Called several times to ask and was lied to when they dropped the ball. The next day after up all night in severe pain, they finally called one in after lying to us that they had. Staff treated me like dirt and brushed me off and hung up on me. These people actually performed a surgery and sent me home with NOTHING for 24 hours. They do not care about patients, only covering their own. Worst experience from a doctor’s office ever. I didn’t even get to see Dr. A the day of surgery for questions. Patients beware.

April 30th, 2020

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Dr.Alcantara is a excellent Surgeon I trust him with my Life I referred severally family members and Friends has excellent Bed side manners is very caring and concerned of your health and needs of his patients

March 17th, 2019

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Click for our Methodology

South Texas Colorectal Center

225 E Sonterra Blvd Ste 215San Antonio, TX 78258

Tel: (210) 212-6202

South Texas Colorectal Center

311 Camden St Ste 501San Antonio, TX 78215

Tel: (210) 212-6202

Mon8:00 am - 5:00 pm

Tue8:00 am - 5:00 pm

Wed8:00 am - 5:00 pm

Thu8:00 am - 5:00 pm

Fri8:00 am - 5:00 pm

SatClosed

SunClosed


Mario Alcantara, MD	Dr. Serena Murphy, MD	Dr. William Brian Perry, MD	Dr. James Hernan Prieto, MD
Colorectal Surgery	Colorectal Surgery	Surgery	Colorectal Surgery
Accepts New Patients
4.4 (72 Ratings)	0 (0 Ratings)	0 (0 Ratings)	4.3 (68 Ratings)
	10 Years of Experience	36 Years of Experience	23 Years of Experience
No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option
Speaks English		Speaks Spanish, English	Speaks English, Spanish
San Antonio , TX	Fort Sam Houston , TX	San Antonio , TX	New Braunfels , TX
	Med School: Louisiana State University School Of Medicine In New Orleans	Med School: Duke University School Of Medicine	Med School: University Of Miami Leonard M Miller School Of Medicine
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Colorectal Surgery

Abdominal Pain
Banding
Bowel Resection
Colon Cancer
Colonoscopy
Diverticulitis
Hemorrhoidectomy
Hemorrhoids
Rectal Bleeding
Rectal Pain

Mario Alcantara holds an expired medical license in the state of Texas. They are board certified in Surgery by the American Board of Surgery.

Board Certifications

Board certified in Surgery by the American Board of Surgery.

Medical License

Medical Doctor with an expired medical license in the state of Texas that expired in 2026.

NPI Number

Mario Alcantara's NPI number is 1609039049.

Dr. Jaime Lopez Mayoral, MD
Colorectal Surgery
41 Years Exp | San Antonio, TX
(35)
Dr. Vincent August Caldarola, MD
Surgery
46 Years Exp | San Antonio, TX
(34)
Dr. Randall David Rogers, MD
Colorectal Surgery
49 Years Exp | San Antonio, TX
(58)
Dr. Richard Blair Jackson, MD
Colorectal Surgery
41 Years Exp | San Antonio, TX
(36)
Dr. Clark Michael Kardys, MD
Colorectal Surgery
22 Years Exp | San Antonio, TX
(5)
Dr. Michael A Keller, MD
Colorectal Surgery
21 Years Exp | San Antonio, TX
(8)
Dr. John Henry Winston, MD
Colorectal Surgery
32 Years Exp | San Antonio, TX
(84)
Dr. Katharine Elizabeth Markell, MD
Colorectal Surgery
24 Years Exp | San Antonio, TX
(0)
Rachel Lynn Stein
Nurse Practitioner
| San Antonio, TX
(0)
Dr. Stephen Ellery Ranney, MD
Colorectal Surgery
10 Years Exp | Fort Sam Houston, TX
(0)

Which hospitals is Mario Alcantara affiliated with?: Mario Alcantara is affiliated with Baptist Medical Center.
Does Mario Alcantara accept my insurance?: You can see the insurance plans that Mario Alcantara accepts on their Vitals profile.
What languages does Mario Alcantara speak?: Mario Alcantara speaks English.
Where is Mario Alcantara's office located?: Mario Alcantara's office is located at 225 E Sonterra Blvd Ste 215, San Antonio, TX, 78258.
Is Mario Alcantara accepting new patients?: Mario Alcantara is accepting new patients on Vitals. View Mario Alcantara's profile on Vitals to make an appointment.

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