Dr. Marriam Ali, MD

Dr. Marriam Ali, MD

Endocrinologist
240 Adriatic Pkwy, McKinney, TX
5.00
“Overall excellent! Things weren't exactly on time nor immediate, which I don't think we come to expect at doctors' offices. There was wait time in the lobby and in the room.”
Michael J.April 17, 2026
Highly recommended
100% of patients gave this doctor 5 stars
Excellent wait time
95% of patients waited less than 30 minutes
New patient appointments
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Available appointments

Today, Apr 22 – Tue, May 5
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What patients are saying

Overall rating

5.00

Average wait time

4.71

Bedside manner

5.00
“Overall excellent! Things weren't exactly on time nor immediate, which I don't think we come to expect at doctors' offices. There was wait time in the lobby and in the room.”
Michael J.April 17, 2026
“Dr. Ali was a breath of fresh air. I have been dealing with some complicated health issues and have tried a few different specialists attempting to get answers. I found Dr. Ali on ZocDoc and she was an answered prayer. For the first time, my health problem/diagnoses were explained to me in a way it was easy to understand. She didn’t want to just put me on medication to fix the symptoms, she wanted to figure out the “why” and she was able to with some testing. She also took into consideration all the potential future problems I could have with certain medication’s if we didn’t understand the root cause. She took her time, answered all of my questions didn’t seem as if she was in a rush to get on to the next patient. It was amazing and she actually seemed to care about me as a person which is rare. The staff were all friendly as well! Such a great experience and so thankful I am her patient! ”
Heather S.April 8, 2026

About Dr. Marriam Ali

Dr. Ali is a board-certified endocrinologist with a special interest in diabetes, diabetes technology and bone health. She also enjoys helping patients manage thyroid disorders and PCOS. Dr. Ali was born and raised in Dallas and earned her medical degree from Texas A&M College of Medicine. She completed her Internal Medicine residency at Baylor College of Medicine in Houston, followed by endocrinology fellowship training at Northwestern Memorial Hospital in Chicago. After several years in the Windy City, Dr. Ali and her family were excited to return to the Dallas area. Outside of medicine, Dr. Ali enjoys traveling and cooking healthy meals with her husband and daughter. She values a collaborative approach to care and is excited to work closely with her primary care colleagues as a trusted resource for endocrine-related conditions.

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Areas of expertise

This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Enlarged thyroid
Osteoporosis
Underactive thyroid
Chronic diabetes
Diabetic emergency
Enlarged thyroid
Osteoporosis
Underactive thyroid
Chronic diabetes

Office locations

Doctors of Internal Medicine (1 of 2)
240 Adriatic Pkwy, McKinney, TX 75070
Doctors of Internal Medicine (2 of 2)
5575 Frisco Square Blvd, Ste 210, Frisco, TX 75034
1 of 2

Education and background

Practice names

Board certifications

  • American Board of Internal Medicine
  • Endocrinology, Diabetes & Metabolism (American Board of Internal Medicine)

Education and training

  • Medical School - Texas A&M University Naresh K. Vashisht College of Medicine, Doctor of Medicine
  • Northwestern Memorial Hospital, Fellowship in Endocrinology
  • Baylor College of Medicine, Residency in Internal Medicine

Languages spoken

  • English

Provider's gender

Female

NPI number

1700296191

Patient reviews

All reviews have been submitted by patients after interacting with the practice.
Overall rating
5.00
Wait time
4.71
Bedside manner
5.00
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23 reviews
Most relevant
Dr. Ali was great and explained everything in great detail. She answered all my questions and listened to my concerns
Verified patient
Fantastic doctor's appointment! Im so excited for my journey to health and wellness with Dr. Ali.
Overall excellent! Things weren't exactly on time nor immediate, which I don't think we come to expect at doctors' offices. There was wait time in the lobby and in the room.
Verified patient
Dr. Ali was a breath of fresh air. I have been dealing with some complicated health issues and have tried a few different specialists attempting to get answers. I found Dr. Ali on ZocDoc and she was an answered prayer. For the first time, my health problem/diagnoses were explained to me in a way it was easy to understand. She didn’t want to just put me on medication to fix the symptoms, she wanted to figure out the “why” and she was able to with some testing. She also took into consideration all the potential future problems I could have with certain medication’s if we didn’t understand the root cause. She took her time, answered all of my questions didn’t seem as if she was in a rush to get on to the next patient. It was amazing and she actually seemed to care about me as a person which is rare. The staff were all friendly as well! Such a great experience and so thankful I am her patient!
Verified patient
From the front desk staff to the nurses in the back the experience was incredible Dr Ali was amazing and had the best bedside manner. She is genuinely concerned about my well being and is interested in helping me solve my medical issues. This doctor has given me such hope that I haven’t had in years. Highly recommend. Thank you Dr. Ali and staff.
Verified patient
Dr. Ali, was very patient and listened to all my concerns and I felt heard. I had a lot of questions and concerns with my recent diagnosis. She explained things with easy to understand language. She even allowed me time to take notes. We went over everything from best to worst case scenarios.
Verified patient
Dr Ali was lovely. She listened to my concerns and explained her role in my complex medical situation. Looking forward to continuing to work with her!
Verified patient
I cannot express how great MD Ali is. She's kind and a great listener. I know MD appointments are not great experiences, but she made me feel heard and seen, and at no point did I feel she was rushing to leave the room. I STRONGLY RECOMMEND HER.
Verified patient
I’ve been to a couple of doctors, but never went back because their bedside matter was horrible. They didn’t listen to me and simply just wanted to either give me a pill or the opposite and just send me on my way. Not really listening, but Doctor Ali was amazing. She listened to everything I had to say, didn’t jump to conclusions and really wanted to find out what the root cause was for my symptoms. I would say she’s very much conservative, which I appreciate.
Verified patient
She’s amazing! She is very knowledgeable and has been the kindest doctor I’ve been to in ages. She didn’t make me feel rushed or dumb for asking questions and wants followups to monitor my condition which I absolutely love. I’ve had doctors rush me out the door or push me toward a certain treatment without providing me all the info, Dr. Ali is wonderful, I’ll be a long-time client for years!
Verified patient
Looooved Dr. Ali, she’s Brilliant!!! Very professional and polite, listen to all my concerns and took great care of me!! Entire staff was wonderful!!
Verified patient
Dr Ali is one of the best endocrinologists I have seen over the years for my thyroid disease, if not the best. She is friendly, professional and extremely knowledgeable about my medical conditions. She made me feel heard and understood my concerns. her passion for endpoint tonality and helping her patients strongly comes through. I literally breathed a sigh of relief during my consultation with her. I’m so glad I finally found a great endocrinologist which I struggled to find when moving to the area a couple of years ago. Highly recommend Dr Ali!
Verified patient
The doctor was friendly. She explained her background and got to know her patient. She was thorough and answered ALL of my questions and my concerns.
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Frequently asked questions

How soon can I make an appointment with Dr. Marriam Ali?

Generally, Dr. Marriam Ali has appointments available on Zocdoc within 1 week. You can see Dr. Ali's earliest availability on Zocdoc and make an appointment online.

Is Dr. Marriam Ali accepting new patients?

Dr. Marriam Ali generally accepts new patients on Zocdoc. You can see Dr. Ali's earliest availability on Zocdoc and schedule an appointment online.

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Can I make an appointment with Dr. Marriam Ali online?

Yes, you can make an appointment online with Dr. Ali using Zocdoc. It’s simple, secure, and free.

What practice does Dr. Marriam Ali work with?

Where is Dr. Marriam Ali's office located?

Dr. Marriam Ali has 2 office locations, including in Frisco and McKinney, view full addresses on Dr. Ali's profile.

Which board certifications does Dr. Marriam Ali have?

Dr. Marriam Ali is certified by American Board of Internal Medicine and Endocrinology, Diabetes & Metabolism (American Board of Internal Medicine).

What are common reasons for patients to see Dr. Marriam Ali?

Dr. Marriam Ali frequently sees patients for Acne, Birth Control / Contraception, Endocrinology Consultation, Prescription / Refill, and Weight Loss Consultation. You can see other visit reasons for Dr. Marriam Ali on their profile.

What languages does Dr. Marriam Ali speak?

Dr. Marriam Ali speaks English.

How do patients rate Dr. Marriam Ali in reviews?

23 patients have reviewed Dr. Marriam Ali. The overall rating for this doctor is 5/5. They have a 5/5 rating for bedside manner and a 4.71/5 rating for wait time. You can read individual reviews and ratings on their profile.

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ZocdocHouston, TX EndocrinologistsDr. Marriam Ali, MD