Dr. Melissa Martinez-Diaz, MD | San Antonio, TX | Internist

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Dr. Melissa Martinez-Diaz is an internal medicine physician who brings 26 years of clinical experience to her practice. She earned her medical degree from Universidad Autonoma de Guadalajara and completed her residency at Elmhurst Memorial Healthcare in 2004. Dr. Martinez-Diaz provides care in English to patients throughout her community.

Dr. Martinez-Diaz practices in San Antonio, Texas, and maintains an affiliation with Valley Baptist Medical Center Brownsville. She specializes in managing diabetes, including Type 2 diabetes in both adults and younger patients. Her expertise extends to treating chronic kidney disease and performing glucose monitoring procedures. Patients have given Dr. Martinez-Diaz an average rating of 5.0, reflecting their confidence in her care.

Overview based on verified provider data

accepting new patients
5

21 Ratings
26 years of experience
37 insurance plans accepted
speaks English
Elmhurst Memorial Healthcare
16 written reviews
1 specialty
7 areas of expertise
1 board certification
1 hospital affiliation
1 office location
Female

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

Based on patient feedback. Read the reviews

Dr. Martinez-Diaz's Ratings and Reviews

5

21 Ratings with 16 written Reviews

Average Wait Time 11 Minutes

How was your appointment with
Dr. Martinez-Diaz?

Patients’ Perspective

Gave an accurate diagnosis: (16) Did WellNeeds Improvement (0)
Had a good bedside manner: (15) Did WellNeeds Improvement (0)
Spent time with me: (15) Did WellNeeds Improvement (0)
Provided follow-up after the visit: (15) Did WellNeeds Improvement (0)
Flexible scheduling: (9) Did WellNeeds Improvement (0)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

21 ratings & reviews

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Showing 1 to 10 of 16 reviews

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Dr. Martinez-Diaz was very thorough. She answered all my questions and she found I was taking the wrong medication. I am very satisfied.

March 24th, 2026

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Dr. Martinez was very knowledgeable about my situation and was able to get me the care that I needed

February 2nd, 2026

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Very Loving and very kind doctor. Bless her and her family for all that she does. She needs a break. She so awesome please treat her to a spa day.

October 30th, 2025

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My visit was great, she is easy to talk with and funny. I am glad to be her patient.

July 16th, 2025

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Doctor Melissa Diaz martinez, is awesome in keeping me in good health, her staff are so caring, nice

May 6th, 2025

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I appreciate my doctor. I wouldn’t have it any other way.

February 18th, 2025

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She is Awesome, Professional, Funny, takes her time to tell you her findings, and always asking if your in pain, what hurts, and when all is said and done I always feel better.

August 27th, 2024

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It was amazing she was very explanatory in all the information I need to know

June 4th, 2024

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So friendly and informative. Answers all questions and concerns.

April 4th, 2024

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I had an excellent and professional visit! Her staff was very approachable and caring. I did not wait long to be seen and I felt very very at ease during the visit. As a health care professional myself , i felt medically my concerns were addressed and my follow up was very appropriate . I felt very included in my treatment options and happy I selected this care team’

January 30th, 2024

Dr. Melissa Martinez-Diaz

720 Pleasanton RdSan Antonio, TX 78214

Tel: (210) 921-3800

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


Dr. Melissa Martinez-Diaz, MD	Dr. Richa Mittal, MD	Dr. Claudia Makhoul, MD	Dr. Chinwe Jane Okafor, MD
Internal Medicine	Internal Medicine	Internal Medicine	Internal Medicine
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
5 (21 Ratings)	0 (0 Ratings)	4.3 (17 Ratings)	4 (4 Ratings)
26 Years of Experience	22 Years of Experience		19 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English	Speaks English, Hindi	Speaks French, Arabic, English	Speaks English, Spanish
San Antonio , TX	Frisco , TX	Houston , TX	SUGAR LAND , TX
Med School: Universidad Autonoma de Guadalajara	Med School: UT Health Science Center at San Antonio		Med School: University Of Texas Medical Branch At Galveston
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Internal Medicine

Check-up
Heartburn
Immunization
Physical
Vaccination
Weight Loss
Weight Loss (non-surgical)

MEDICAL LICENSE

Medical Doctor, Texas, 2026, Active

EDUCATION & TRAINING

Residency

Elmhurst Memorial Healthcare2004

Medical School

Universidad Autonoma de GuadalajaraGraduated in 2000

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Infectious Disease
21 Years Exp | Fort Sam Houston, TX
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Dr. Nidal Jamal Husni Badran, MD
Nephrology
36 Years Exp | San Antonio, TX
(0)
Dr. Thomas Bienen, MD
Hospital Medicine
28 Years Exp | San Antonio, TX
(0)
Dr. Elizabeth Varughese Maani, MD
Radiation Oncology
19 Years Exp | San Antonio, TX
(0)
Dr. Richard Eric Thorner, MD
Infectious Disease
55 Years Exp | SAN ANTONIO, TX
(4)
Dr. Marta Caceres Dahiya, MD
Radiation Oncology
33 Years Exp | Fort Worth, TX
(4)
Dr. Carlos Santiago Restrepo, MD
Diagnostic Radiology
44 Years Exp | Kansas City, MO
(1)
Dr. Stephen Chen Liaw, MD
Diagnostic Radiology
15 Years Exp | Big Spring, TX
(0)

Where is Dr. Melissa Martinez-Diaz's office located?: Dr. Melissa Martinez-Diaz's office is located at 720 Pleasanton Rd, San Antonio, TX, 78214.
What languages does Dr. Melissa Martinez-Diaz speak?: Dr. Melissa Martinez-Diaz speaks English.
Is Dr. Melissa Martinez-Diaz accepting new patients?: Dr. Melissa Martinez-Diaz is accepting new patients on Vitals. View Dr. Melissa Martinez-Diaz's profile on Vitals to make an appointment.
Does Dr. Melissa Martinez-Diaz accept my insurance?: You can see the insurance plans that Dr. Melissa Martinez-Diaz accepts on their Vitals profile.
How can I make an appointment with Dr. Melissa Martinez-Diaz?: You can find contact information for Dr. Melissa Martinez-Diaz here on Vitals.

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