Our Doctors

Naheed Rahman, MD, F.A.A.P.

Naheed Rahman, MD, F.A.A.P.

Naheed Rahman, MD, F.A.A.P., is the founding physician of Steeplechase Pediatric Center. She completed her pediatric studies at the Tulane Medical School and did two additional years of fellowship in Pediatric Nephrology. Dr. Rahman is Board Certified in Pediatrics and is a Fellow of the American Academy of Pediatrics. She has been in private pediatric practice in Northwest Houston and the Greater Houston area for the past 34 years. Dr. Rahman is currently a part of the Medical Staff of North Cypress Medical Center and Willowbrook Methodist Hospital. She is married, and has 3 adult children. They used to come to her office and help during summer months, saw her interaction with patients and their families and as a result all of them are physicians now. Dr. Rahman loves to cook, enjoys gardening and takes great pleasure in taking care of all 8 of her grandchildren. She is well versed in all aspects of pediatric care from newborn to eighteen years of age. Dr. Rahman enjoys the fact that she is able to see second generation patients. She speaks Hindu and Urdu. At this time Dr. Rahman sees patients at our NCMC and Cypress locations.

Mario Garza Jr., MD, F.A.A.P.

Mario Garza Jr., MD, F.A.A.P.

Mario Garza Jr. MD, F.A.A.P., is a native Houstonian who lives in the Cypress area. He received his medical degree from the University of Texas Medical School-Houston in 1984, and continued with his 3 year Pediatrics residency there. Upon completion of his training in 1987, he joined Steeplechase. He is a Fellow of the American Academy of Pediatrics-board certified by the American Board of Pediatrics. Dr. Garza has served as Chairman of the department of pediatrics at both North Cypress Medical Center and Cypress Fairbanks Medical Center, and currently serves on the Board of Governors at North Cypress. He is married to Lisa, and has 2 daughters, Andrea and Hannah. Dr. Garza is fluent in Spanish. At this time he sees patients at our NCMC and Cypress locations.

Paul S. Herman, MD, F.A.A.P.

Paul S. Herman, MD, F.A.A.P.

Paul S. Herman, MD, F.A.A.P., is a native Houstonian who lives in the Cypress area. He received his medical degree from the Autonomous University of Guadalajara, Mexico. Following an internship at the University of Maryland affiliated South Baltimore General Hospital, he completed his pediatric residency at the University of Texas at Houston in 1987. He has been with Steeplechase Pediatric Center since 1990. Dr. Herman is a Fellow of the American Academy of Pediatrics and is certified by the American Board of Pediatrics. He has admitting privileges at North Cypress Medical Center and Cypress Fairbanks Medical Center. Dr. Herman is married to Julie, and they have 2 adult children. In his spare time Dr. Herman enjoys going to theater, bird watching and spending time with family. At this time he sees patients at our NCMC and Cypress locations.

Farah Mamedov, MD, F.A.A.P.

Farah Mamedov, MD, F.A.A.P.

Farah Mamedov, MD, F.A.A.P., has been with Steeplechase Pediatric Center since 2005. She completed her medical studies at the Azerbaijan State Medical University, where she graduated with honors. Dr. Mamedov obtained her pediatric residency at Baylor College of Medicine. After completion of her residency in 2004, she was a Fellow at the Neonatal and Perinatal Medicine Department at Baylor College of Medicine until joining Steeplechase Pediatric Center. She is Board Certified in Pediatrics, a Fellow of the American Academy of Pediatrics and is a member of Harris County Medical Society and American Medical Association. Dr. Mamedov has admitting privileges at North Cypress Medical Center and Cypress Fairbanks Medical Center. She is married, has 2 daughters, Aliya and Aileen, and lives in the Houston area. Dr. Mamedov loves traveling and exploring new cultures and cuisines. She also enjoys spending time outdoors with her kids. Dr. Mamedov speaks Azeri and Russian. At this time she mainly sees patients at our NCMC and Cypress locations.

Veronica K. Goytia,M.D.,F.A.A.P.

Veronica K. Goytia,M.D.,F.A.A.P.

Veronica K. Goytia, M.D.,F.A.A.P., was born in New York and raised in Buenos Aires, Argentina. She received her B.A. in Pre-Med/Biology from Baylor University in Waco, Texas and received her medical degree from St. George’s University School of Medicine, in Grenada, W.I. in 2001. Dr. Goytia completed her residency training in Pediatrics at Scott & White Memorial Hospital in Temple, Texas in 2004. She is certified by the American Board of Pediatrics and is a Fellow of the American Academy of Pediatrics. In 2008, she completed her Pediatric Infectious Diseases Fellowship training at Baylor College of Medicine and Texas Children’s Hospital in Houston, Texas. She has admitting privileges at North Cypress Medical Center, Cypress Fairbanks Medical Center and Methodist Willowbrook Hospital. Dr. Goytia is fluent in Spanish, and also speaks French. She lives in Cypress area and enjoys spending time with her daughter Aileen, and traveling the world. At this time she sees patients at our NCMC and Cypress locations.

Grace Leonardo, MD, F.A.A.P.

Grace Leonardo, MD, F.A.A.P.

Grace Leonardo, MD, F.A.A.P., completed her medical studies at the Cebu Institute of Medicine, Philippines, where she graduated with honors. She then obtained her Pediatric residency at the University of Illinois at Chicago. Before relocating to Houston, TX, she spent the next 5 years in Dover, Delaware in a busy pediatric practice. She is Board Certified in Pediatrics and is a Fellow of the American Academy of Pediatrics. She has been with Steeplechase Pediatrics since 2003 and presently has privileges at North Cypress Medical Center and Cypress Fairbanks Medical Center. She is married, has 2 children and lives in West Houston. Dr. Leonardo speaks Filipino (Tagalog and Cebuano), Chinese (Mandarin and Fukien) and is proficient in medical Spanish. At this time Dr. Leonardo sees patients at our Katy location.

Rosabelle McConkey, MD, F.A.A.P.

Rosabelle McConkey, MD, F.A.A.P.

Rosabelle McConkey, MD, F.A.A.P., was born in Michigan but grew up in Northwest Houston. She attended Eisenhower High School, where she met her husband, David. She received her B.A. in Chemistry at the University of St. Thomas in Houston and stayed in town to complete medical school and a pediatric residency at the University of Texas Health Science Center. She has been with Steeplechase Pediatrics since 2010. She has privileges at North Cypress Medical Center and Cy-Fair Medical Center. She is Board Certified in Pediatrics and is a Fellow of the American Academy of Pediatrics. She enjoys spending quality time with her 2 sons and daughter. Her hobbies include DIY home projects, crafts, cooking and trying new foods. Dr. McConkey speaks Vietnamese. At this time she sees patients at our NCMC and Cypress locations.

Margaret McPherson, MD, F.A.A.P.

Margaret McPherson, MD, F.A.A.P.

Margaret McPherson, MD, F.A.A.P., was born and grew up in Northeast Texas. She received her B.S. in Biology from Texas A&M University in College Station and went on to attend medical school at the University of Texas Medical Branch in Galveston. She completed her pediatric residency at the University of Texas Health Science Center in Houston. Dr. McPherson lives in Richmond with her husband and their two daughters, Lillian and Elizabeth. She is affiliated with Memorial Herman, Katy, North Cypress Hospital and Cypress Fairbanks Hospital. She is Board Certified in Pediatrics, a Fellow of the American Academy of Pediatrics, and is a member of the Texas Medical Association and Harris County Medical Society. At this time she see patients at our new Fulshear location.

Mark A Lorenzen, MD, F.A.A.P.

Mark A Lorenzen, MD, F.A.A.P.

Mark A Lorenzen, MD, F.A.A.P., is a native Texan. He graduated from Texas A&M University and then completed medical school and residency training at the University of Texas Medical Branch in Galveston in 1980. He practiced Pediatrics for 27 years in Waco, Texas before moving to Katy in 2008. Dr. Lorenzen is board certified in Pediatrics and a member of the American Academy of Pediatrics, the Texas Pediatric Society, the Texas Medical Association, and the Harris County Medical Society. He is on the staff of Memorial Hermann Katy Hospital. Dr. Lorenzen is married to Regina and has raised 6 children. He has 8 grandchildren in the Katy area and 2 more in Waco. He is well versed in caring for patients from newborns through the teenage years. At this time Dr. Lorenzen sees patients at our Katy location.

Tracey Y. Louie, MD, F.A.A.P

Tracey Y. Louie, MD, F.A.A.P

Tracey Y. Louie, MD, F.A.A.P, was born and raised in New York. She received her B.A. in Biology from New York University, and her medical degree from Stony Brook University School of Medicine, which is part of State University of New York system. Dr. Louie completed pediatric residency at the Children’s Hospital at Montefiore in New York, and is Board Certified in Pediatrics and a Fellow of the American Academy of Pediatrics. Prior to relocating to Texas for her husband’s job, she practiced at a busy pediatrics establishment in New York for 2 years. She lives with her husband and daughter in The Woodlands. Dr. Louie is fluent in Chinese (Cantonese, Mandarin, Taishanese) and is proficient in medical Spanish. At this time Dr. Louie sees patients at our NCMC and Cypress locations.