Medical Group Clinic | Katy
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Memorial Hermann Medical Group Katy

23920 Katy Fwy
Ste 500
Katy, TX 77494
Clinic Hours:
Monday - Thursday: 7:30am - 5:00pm
Friday: 7:30am - 3:00pm

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Meet The Katy Family Practice Medical Providers

Satterfield MHMG Rosenberg

Dr. Robert Satterfield, M.D.
Internal Medicine

ScheduleNow Memorial Hermann Medical Group(1)


Dr. Indira Vanguru

Dr. Indira Vanguru. M.D.
Family Medicine

ScheduleNow Memorial Hermann Medical Group

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About Your MHMG Katy Family Medicine Clinic

Memorial Hermann Medical Group (MHMG) Katy provides highest-quality primary care for patients in the fast-growing Katy area. Our family medicine specialists focus on precise diagnosis and up-to-date treatment, but the heart of our medical  practice is caring and empathetic relationships with patients of all ages – newborns to seniors.

Why should MHMG be your first choice for health care? As an MHMG Katy patient, you have access to:

  • State-of-the-art primary care, diagnosis and treatment at a conveniently located doctor’s office for patients in Katy, Woodcreek, Williamsburg, West Memorial, Cinco Ranch, Pine Mill Ranch and nearby communities, including Brookshire and Sealy
  • The wealth of clinical resources provided by the Memorial Hermann Medical Group – one of the Houston area’s largest and most experienced physician networks
  • MHMG’s convenient 24/7 online patient portal

Our physicians, who have years of experience in family medicine, focus on building long-lasting relationships with their patients. They are specially trained in diagnosis, treatment and prevention of disease and skilled in managing diabetes, hypertension, infectious diseases, kidney disorders and other chronic conditions.

Dr. Rocio D. Allison earned her medical degree from the Universidad Colegio Mayor de Nuestra Señora del Rosario in Bogotá, Colombia, and completed her residency in the Memorial Family Residency Program in Houston. Board certified in family medicine, Dr. Allison is experienced in caring for patients in both hospital and outpatient settings. Her clinical interests include healthcare for all ages, dermatology, skin-cancer prevention and well-woman exams. She is fluent in Spanish.

Dr. Indira Vanguru earned her medical degree from Guntur Medical College in India. She completed her family medicine residency at Natividad Medical Center, in Salinas, California. Board certified in family medicine, Dr. Vanguru treats patients of all ages. Among her primary clinical interests are women’s health and managing hypertension, diabetes and high cholesterol. She is experienced in treating patients of varied cultural backgrounds and speaks Telugu, Hindi and Spanish.

Memorial Hermann Medical Group (MHMG) Katy is conveniently located on the Katy Freeway (Interstate 10), just west of the Grand Parkway (Texas 99). The office can be accessed from the I-10 frontage road or Mercantile Parkway off the Grand Parkway.

Patient Testimonials

I enjoy going to medical appointments with Dr. Rocio Allison. She is friendly, courteous, respectful and empathetic to my needs (condition). I would highly recommend her to all my friends. - Patient of Dr. Rocio

Nurse was very, very nice and explained everything very good and easy to understand. - Anonymous

Maria was excellent! So very helpful! - Anonymous

Dr. DeFriece is awesome! He takes his time to make sure he understands the issues and that you understand treatment and options. - Patient of Dr. DeFriece