Katy Location

705 S. Fry Rd., Suite 115, Katy, TX 77450
Phone: 281.647.9204

West Houston Location

12121 Richmond, Suite 217
Houston, TX 77082
Phone: 832.243.1850

West Grand Parkway South Location

7830 West Grand Parkway South, Suite 260
Richmond, TX 77406
Phone: 832.243.1850


Dr. Rihal image

Dr. Rihal grew up in Michigan. He attended Wayne State University and did his residency at William Beaumont Hospital in Internal Medicine. He is board certified in Internal Medicine. Dr. Rihal then attended the University of California at Irvine where he completed an Allergy/Immunology fellowship. He is board certified in Allergy and Immunology for the treatment pediatric and adult patients. After living in California, Dr. Rihal and his wife, Simran, moved to Houston. He has been in private, solo practice since 1998 in Katy and recently added a full time office at the West Houston Medical Center. Dr. Rihal and Simran have twin boys and reside in Houston

Melissa Rettmann image

Anisha Prabakaran, PA-C is a board certified Physician Assistant who is originally from Malaysia but considers Houston her second home. She received her Bachelors of Science in Nutrition from Texas A&M University in College Station and her Masters of Physician Assistant Studies at the University of Texas Medical Branch in Galveston. Since graduating, she spent some time working in Pediatrics where she worked with many children diagnosed with allergies, asthma and various dermatologic conditions. With an interest in specializing in the field of Allergy/Immunology, she joined our practice in 2016. She is a Fellow of the American Academy of Physician Assistants, a member of the Texas Academy of Physician Assistants and is a member of the American Academy of Allergy, Asthma and Immunology.

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