Hours of Operation

  • Monday7:30am - 5:30pm
  • Tuesday 7:30am - 5:30pm
  • Wednesday7:30am - 5:30pm
  • Thursday7:30am - 7:00pm
  • Friday 7:30am - 5:30pm
  • SaturdayClosed
  • SundayClosed
Patient Portal Login

Secure Patient Portal allows for access to view your Personal Health Record.

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Medical Services

Texas Gulf Coast Medical Group offers many comprehensive medical services.

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Immediate Care

If you are sick today, you can be seen today. Walk In, no appointment necessary.

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Mental Health Services

Texas Gulf Medical Group now offers a comprehensive array of mental health services.

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  • Did you know Texas Gulf Coast Medical Group now offer Psychiatry and Psychology therapy services? Dr. Patricia Corke office joined along with Dan Polk, Jill Gilbert, Carol Milan, Marsha Henderson and with recent arrival of Dawn Drucker. If you are in need of therapy services, make an appointment.

  • Texas Gulf Coast Medical Group is affiliated with Bay Area Regional Medical Center. They are now open and offering full hospital services plus emergency room. For information go to http://www.BARMC.US

  • Employment: Check our employment page for opportunities to work in the medical field.

  • EMD2 Virtual Office Visit is currently down. Our vendor is currently making corrections. Please call to make an in person appointment.

TGCMG Brochure


Our Departments


At Texas Gulf Coast Medical Group (TGCMG) Pediatricians manage the physical, mental and emotional well-being of their patient



Podiatry is the medical specialty devoted to the study, diagnoses and treatment of disorders in the foot (feet), ankle and/or



Infusion Center Now on 1st Floor

Our IV Infusion suite is a Physician-directed, office-based system for providing intravenous (IV) infusion therapy. Close teamwork exists between o

Online Doctor, Clearlake, Texas ...

Your Online Doctor Saves You Time and Money Patients of the Texas Gulf Coast Medical Group are now able to engage in “office visits” without le


  • My children have been seeing Dr. Azim and/or Dr. Mena since they were born and both of them were premature. Seventeen and ten years later - my children are extremely healthy and happy children. It is good to have good partners that actually care about your children and Dr. Azim, and his staff, have been so excellent to work with. I only wish my personal PCP was as wonderful. I hear horror stories that people have with their doctors or waiting forever and I honestly have been blessed enough to not have had that type of experience. I will be sad when my kids are too old to see Dr. Azim. He always greets us with a big smile and the kids know and trust him. I would highly recommend him. Sometimes things are just worth the wait!

    Dona Wingard
  • I will agree with some of the other notions about arriving early and still having to wait, but, generally my experiences have been positive. The staff on the 4th floor are pleasant and Dr. C. Guillermo is very pleasant, positive, and I feel like she really cares about her patients. Instead of trying to come in and diagnose in 2 seconds and leave she always comes in asking questions and getting patient feedback to make them feel comfortable about the any conditions and treatments. It's like you're working together instead of everything being done by the doctor. She is definitely an awesome listener. She keeps an open mind towards what I have to say about why I'm in for the appointment even though I'm obviously not a doctor. Would recommend.

    Christopher Bruce
  • My doctor is Dr. C. Guillermo and has been for quite sometime. All of my family has now chosen her as their PCP based on my reccommendation. She is thorough, a great listener, always with a pleasant personality and very good at what she does.

    Marilyn Jordan
  • Dr. Azim was recommended to me by a life long friend. He is a very good Dr. He is great with the children, very knowledgeable, and is flexible. His office staff is friendly and will never turn you away if you are late which was great for me when I was pregnant and had another small child to carry. I highly recommend Dr. Azim and the staff at Gulf Coast Medical Group.

    Natalie Ann

Meet Our Doctors

Dr. Leila Sim

Dr. Leila Sim earned her medical degree with honors from the University of Santo Tomas in Manila, the Phil

Dr. Mohammad Fouad Azim

Dr. Mohammad Fouad Azim is certified by the Board of Pediatrics. He earned his medical degree from De Sall

Dr. Raquel Mena

Dr. Raquel Mena received her medical degree graduating cum laude from the Universidad Nacional Pedro Henri

Dr. Adelia Brannen

Dr. Adelia Brannen earned her medical degree at the University of Texas Medical Branch, Galveston and comp

Dr. Leticia Cantu

 Dr. Leticia Cantu earned her medical degree from the University of Texas Southwestern Medical School in

Dr. Kathryn Cooke

Dr. Kathryn Cooke earned her medical degree from Southwestern Medical School in Dallas. She completed her

Dr. Benjamin V. Guillermo

Dr. Benjamin V. Guillermo received his medical degree from the University of the Philippines College of Me

Dr. Caryl Guillermo

Dr. Caryl Guillermo received her medical degree from the University of the East Ramon Magsaysay in the Phi

Dr. Steven Kloeris

Dr. Steven Kloeris is a graduate of Clear Lake High School. He earned his medical degree from the Universi

Dr. Di Van Le

Dr. Di Van Le earned his medical degree at the University of Hue Medical School, Vietnam. He served an int

Dr. Michael Lyons

Dr. Michael Lyons is the current President of the Texas Gulf Coast Medical Group. Dr. Lyons, received his

Dr. Kathi McCree

Dr. Kathi McCree is the Medical Director for Texas Gulf Coast Medical Group. She has practiced in the Clea

Dr. Terry Newman

Dr. Terry Newman earned her medical degree at the University of Texas Health Science Center in Houston. Sh

Dr. Rajaswari Rajan

Dr. Rajaswari (Sudha) Rajan has practiced in the Clear Lake area since 1983. Dr. Rajan received her medica

Dr. Ralph Tharp

Dr. Ralph Tharp has been a practicing physician in the Clear Lake area since 1977 where he has been long r

Dr. Dennis Tang

Dr. Dennis Tang earned his medical degree from the University of Texas Medical School – Houston. He comp

Dr. John Turner

Dr. John Turner is a seventh generation Texan. He has also lived in Oklahoma, and graduated from the Unive

Dr. Markus Giacomuzzi

Dr. Markus Giacomuzzi received his Doctorate of Podiatric Medicine (DPM) from the William M. Scholl Colleg

Dr. Patrick Briggs

  Dr. Patrick Briggs earned his Doctorate of Podiatric Medicine from the California College of Podiat

Dr. Muhammad Arian

Dr. Muhammad Ashfaque Arian was born in East Africa and received his medical degree from University of Pun

Dr. Allassia Burns

  Dr. Allassia Burns earned her medical degree from the University of Texas Health Science Center in

Dr. Daniel Whitman

Dr. Whitman was born and raised in Texas, received his medical degree from Baylor College of Medicine in 1

Randal Straach

Mr. Straach joined Texas Gulf Coast Medical Group as Executive Director in January 2014. He is a highly sk

Gabby DeLeon Villarreal

Gabby DeLeon Villarreal, Director of Operations, has been with Texas Gulf Coast Medical Group since June 1

Patricia P. Corke, MD

She graduated Phi Beta Kappa from the University of Texas at Austin. She received her medical degree at th

Dan G. Polk, Ph.D.

Dan G. Polk, Ph.D. has a master’s decree in social work from the University of Wisconsin and a Ph.D. in

Marsha Henderson

Marsha Henderson received her Masters Degree in clinical Social Work from U of H in 1973. She is Board Cer

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