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Tariq Dayah, MD, MPH, FACC is a renowned cardiologist at Memorial Katy Cardiology Associates in Houston, Katy, and Cypress, Texas. 

Dr. Dayah is board-certified in internal medicine, cardiovascular disease, interventional cardiovascular disease, nuclear medicine, and echocardiography. He offers expertise in preventative medicine (blood pressure, heart rate, and cholesterol control), transradial and transfemoral coronary artery interventions, interventional cardio-oncology, peripheral artery interventions, repair of congenital heart defects, such as percutaneous atrial septal defects, and the latest technology involving structural heart interventions.

Dr. Dayah is skilled in numerous noninvasive cardiac imaging modalities such as PET scans, nuclear medicine, and ultrasound imaging. He has been in practice since 2012. He is interested in the latest advancements in coronary artery disease therapies, transcatheter aortic valve replacement, and cardio-oncology. Dr. Dayah currently serves as the Director of Structural Heart at Houston Methodist West Hospital.

A fellow of the American College of Surgeons, Dr. Dayah conducts research into transcatheter aortic valves and energy drink-induced endothelial vascular dysfunction. He has published several journal articles on these research topics.

Asim Khawaja, MD, is a board-certified internal medicine physician practicing at CareOne Internal Medicine and Primary Care. Dr. Khawaja offers high-quality, patient-centered care to those in and around Houston and Katy, Texas.

Dr. Khawaja completed his medical degree at Ross University School of Medicine in Bridgetown, Barbados, in 2012. In 2015, he completed his residency program in internal medicine at Allegheny University Hospital in Pittsburg, Pennsylvania, through the Allegheny University of Health Sciences, now affiliated with Drexel University College of Medicine. After finishing his residency, he worked as a traveling physician for two years, and recently relocated back to the Houston area to join the team at CareOne. In addition to serving patients at CareOne, Dr. Khawaja is affiliated with Memorial Hermann Katy Hospital and Houston Methodist West Hospital.

When he’s not practicing medicine, Dr. Khawaja is a motorsports enthusiast, an avid skier, and enjoys spending time with his friends and family.

Mubarak Khawaja, MD, is a board-certified internal medicine physician with training in pulmonary medicine, and has over 30 years of experience in acute and chronic health care management. He currently practices at CareOne Internal Medicine and Primary Care, and aims to provide compassionate, high-quality care for all patients in and around Houston and Katy, Texas.

Dr. Khawaja received his medical degree from Liaquat University of Medical & Health Sciences in Sindh, Pakistan, in 1987. In 1994, he completed his residency in internal medicine at Mercy Catholic Medical Center in Philadelphia, Pennsylvania, through the Medical College of Pennsylvania, now known as Drexel University College of Medicine, where he also served as chief resident in 1995. General Hospital in Pittsburgh, Pennsylvania, also through Allegheny University of Health Sciences (now part of Drexel University College of Medicine) in 1997.

After his training, Dr. Khawaja served as a Clinical Assistant Professor for the Department of Family Medicine at the University of New Mexico for seven years. He then relocated to Katy, Texas, in 2006. Dr. Khawaja is affiliated with Memorial Hermann Katy Hospital and Methodist West Houston Hospital. He is a member of the Texas Medical Association, the Harris County Medical Society, and the American College of Physicians. To better serve more patients in his community, Dr. Khawaja is fluent in Spanish, Hindi, Urdu, and Gujarati.

Dr. Khawaja currently lives in Sugar Land, Texas, with his wife Sakina, and their two children. In his spare time, he enjoys philanthropy and traveling.

Dr. Caroline Mbogua, the newest addition to the Katy Wellness Center Family. 

Dr. Caroline Mbogua is a board-certified internal medicine physician with 20+years of experience in diagnosing and treating a wide range of medical conditions.

Dr. Caroline Mbogua has dedicated her career to providing comprehensive care to patients.

Whether you’re bringing your child for their first check-up or scheduling a Pap smear, our compassionate team is here to support you every step of the way.

Dr. Dilawar Ajani is a dedicated and experienced internist based in Houston, Texas, committed to providing comprehensive, patient-centered care to adults at every stage of life. With a strong background in internal medicine, Dr. Ajani focuses on preventive care, early diagnosis, and effective management of both acute and chronic conditions. His clinical approach emphasizes listening closely to patients, understanding their unique health concerns, and developing personalized treatment plans that promote long-term wellness.

Dr. Ajani has extensive experience managing complex medical conditions such as diabetes, hypertension, and cardiovascular disease, while also prioritizing routine health maintenance and preventive screenings. Known for his compassionate bedside manner and attention to detail, he strives to build lasting relationships with his patients, empowering them to take an active role in their health.

Serving the greater Houston area, Dr. Ajani is dedicated to delivering high-quality, evidence-based care in a supportive and welcoming environment. His goal is to help patients achieve optimal health, improve their quality of life, and feel confident in their care every step of the way.

As an adult Psychiatrist, Neha Patel, DO, understands just how essential outstanding health services are in reshaping lives and improving patient outcomes. As part of the team at Endocrine and Psychiatry Center, Dr. Patel gets to know those in her care, building trusting bonds with residents of Houston, Texas.

Education has always shaped Dr. Patel’s life. She earned her medical degree from the University of Texas Medical Branch in Galveston. Dr. Patel went on to complete her residency in psychiatry at the same institution. 

Dr. Patel enjoys the challenges and complexity of working in psychiatry and especially loves helping those in her care find a path toward enhanced stability and mental health. She strives to build lasting bonds with patients. 

Residents of the greater Houston region who are 18 and older and want to make the most of their daily mental health and wellness are welcome to come in and meet with Dr. Patel to discuss treatment structure and planning. Book a visit online or by phone to learn more about her approach to mental health.  

Elina Shakya, MD, is a skilled, board-eligible endocrinologist at Endocrine and Psychiatry Center in Katy and Houston, Texas. 

Dr. Shakya earned her medical degree at the Nepal Medical College and Teaching Hospital in Gokarneshwor before relocating to the United States for her residency and fellowship. She studied at the prestigious Cleveland Clinic in Ohio for her residency. For her fellowship, Dr. Shakya worked under skilled physicians and medical professionals at Oshsner/Louisiana State University Health Shreveport. 

Certified by the American Board of Internal Medicine, Dr. Shakya has practiced as a primary care physician since 2011 and brings her expertise in endocrinology, diabetes care, and metabolism to the patients at Endocrine and Psychiatry Center. 

Dr. Shakya is proficient in English, Nepali, Hindu, and Urdu to better serve her patients. She maintains membership in the Endocrine Society, the American Association of Clinical Endocrinologists, and the American Board of Internal Medicine. 

Call the office nearest to you today to book an appointment with Dr. Shakya. 

Kumari Iyer, MD is one of the newest providers who joined Magnolia Family Medicine in the summer of 2025. She sees patients at the Cypress location around the Copperfield community at 15322 Copper Grove Blvd, Houston, TX 77095.

Dr. Iyer brings with her a wealth of experience from having worked in different healthcare fields in California and Tennessee, such as emergency medicine, urgent care, hospice and palliative care, and geriatric and outpatient primary care—her personal passion.

Dr. Iyer graduated from East Tennessee State University in 1998 and is board certified in internal medicine. She is fluent in both English and Tamil. As a mother of three, she enjoys time with her family aside from spending time in her kitchen and tending her garden. 

With years of dedication and service under her belt, Dr. Iyer is committed to delivering compassionate, personalized medical care to you and your family members. You may call (281) 356-1945 or click the “Schedule Appointment” button to select your desired date and time. For your convenience, she sees patients on Tuesdays and Thursdays until 7 pm at the Cypress location and on Wednesdays she sees patients at the Walk-in location until 7 pm.

Allison Walworth, DO, is a board-certified Internal Medicine physician who joins Magnolia Family Medicine with years of experience. Dr. Walworth completed her internal medicine residency at Medical City Arlington in Arlington, TX and earned her medical degree from Burrell College of Osteopathic Medicine in Las Cruces, NM.

She is committed to evidence-based care with a patient-centered focus and welcomes adult patients with a personalized touch. Outside of work, Dr. Walworth enjoys reading--especially Golden Age science fiction and watching classic movies.

Schedule a visit with Dr. Walworth today by clicking on the Schedule Appointment button or call our office at (281) 356-1945 to reserve your slot at your ideal day and time. 

Dileep Puppala, MD, FCCP, FAASM, is a pulmonologist at Texas Multi-Specialty Group, located in Houston and Cypress, Texas. Dr. Puppala is board certified in pulmonary, critical care, and sleep medicine. He has been in practice for 12 years throughout northwest Houston. 

Dr. Puppala earned his medical degree from Andhra Pradesh University Of Medical Sciences in India. He completed his residency in internal medicine at Saint Vincent's Catholic Medical Center in New York City. Following residency, Dr. Puppala completed a sleep fellowship at Sleep and Wake Disorder Center at New York Hospital - Cornell University, and two pulmonary and critical care fellowships at Memorial Sloan-Kettering and The New York Hospital Medical Center of Queens.

Dr. Puppala has extensive experience in medical leadership. He served as the Medical Director of the medical and surgical intensive care department, the Medical Director of respiratory therapy, and the Chairman of the critical care committee at Houston Methodist Willowbrook Hospital. Since 2004, Dr. Puppala has held the position of Medical Director of the sleep disorder center at Cypress Fairbanks Medical Center in Harris County, Texas. He is also a member of Infection Control and Pharmacy and Therapeutics, Co-Director of Critical Care Services and Respiratory Therapy Departments, and Co-Chairman of Critical Care Committee at North Cypress Medical Center in Cypress, Texas.

Dr. Puppala remains active in his field and holds memberships with many professional organizations. He is a member of the American College of Chest Physicians, the American Medical Association, the Texas Medical Association, the American Academy of Sleep Medicine, and the American Association of Physicians of Indian Origin. 

Dr. Puppala has special interests in complicated sleep-disordered breathing, narcolepsy, parasomnias, pulmonary hypertension, pulmonary embolism, interstitial lung diseases, lung cancer, pneumonia, asthma, and more. He performs specialized procedures including bronchoscopy with transbronchial lung biopsies, complicated airway management, percutaneous tracheostomy, chest tube placement, and pulmonary artery catheter placement. He interprets pulmonary function tests, methacholine challenge tests, cardiopulmonary stress tests, diagnostic sleep studies, CPAP titration studies, and multiple sleep latency tests. 

When he’s not working, Dr. Puppala enjoys spending time with his wife and two sons. His hobbies include traveling, tennis, reading about world affairs, and cooking.

Lakshmy V. Ayyar, MD, FCCP is a pulmonologist at Texas Multi-Specialty Group with one office in Cypress and two in Houston, Texas. Dr. Ayyar is board certified in internal medicine, pulmonary disease, critical care, and sleep medicine. Her special interests include pulmonary disease and sleep medicine.

A native of India, Dr. Ayyar’s path to her medical career began at MGM Institute of Health Sciences in Kamothe, Navi Mumbai, where she earned her medical degree. She then came to the United States to complete residency training at the University at Buffalo, The State University of New York. She rounded out her postdoctoral clinical education with a fellowship at Baylor College of Medicine in Houston.

Dr. Ayyar enjoys helping her patients at Texas Multi-Specialty Group. When she isn’t practicing medicine, she is active in medical and professional societies, including the Texas Medical Association and the Harris County Medical Society.

Srinivas Vodnala, MD, FCCP, is a pulmonologist at Texas Multi-Specialty Group with offices in Cypress and the Methodist Willowbrook and Fallbrook neighborhoods of Houston, Texas. Dr. Vodnala is board certified in internal medicine, critical care, and pulmonary disease.

Dr. Vodnala began his medical career at Kasturba Medical College in Manipal, India, where he earned his medical degree. He then completed his residency training at Saint Vincent's Catholic Medical Center in New York City. He finished his postdoctoral clinical education with fellowships at Saint Vincent's Catholic Medical Center and Albert Einstein Medical Center.

Dr. Vodnala is a member of the American College of Chest Physicians, the American Thoracic Society, and the Society of Critical Care Medicine. He is also a member of the Harris County Medical Society and the Texas Medical Association, the largest county and state medical associations in the nation.

For top-quality, evidence-based care in the Houston area, call one of the offices or schedule an appointment today.

Harman Kular, MD specializes in critical care and pulmonary medicine. He is board certified in internal medicine and pulmonary medicine and board eligible in critical care. Dr. Kular completed all of his medical educaton and training through Baylor College of Medicine, which allowed him to practice in a wide variety of settings within the Texas Medical Center, including the Harris Health System and the Veterans Affairs Health System. He believes in providing evidence-based, patient-centered care and has experience with a full spectrum of pulmonary conditions including infectious diseases as well as pleural and lung malignancies. 

Dr. Kular was born and raised in South Texas. He is a proud Houstonian, a faithful Astros fan and a Tex-Mex connoisseur. He lives in Houston with his wife, Sonia, and puppy, Sammy. 

Ali El-Halwagi, MD, MPH, is double board certified in Internal Medicine and Rheumatology. He is dedicated to delivering compassionate, personalized care to every patient he serves. Dr. El-Halwagi graduated summa cum laude from Texas A&M University with a Bachelor of Science in Chemical Engineering. He then relocated to Houston to attend Baylor College of Medicine, where he earned his medical degree with honors. In addition, he holds a Master of Public Health from the University of Texas, reflecting his commitment to understanding and addressing the diverse needs of the community.

Dr. El-Halwagi completed his residency in Internal Medicine at Baylor College of Medicine, where he also served as chief resident. During this time, he gained valuable experience as a hospitalist at Ben Taub General Hospital and Baylor St. Luke’s Medical Center. He went on to complete his fellowship in Rheumatology at Baylor College of Medicine.

Throughout his training, Dr. El-Halwagi has been recognized with multiple honors for his humanistic approach to medicine, dedication to teaching, and excellence in patient care. He is a member of the Alpha Omega Alpha Honor Medical Society and the Gold Humanism Honor Society. He remains actively engaged with the American College of Rheumatology, participating in networking, conference planning, and ongoing professional development.

Dr. El-Halwagi is passionate about improving patient outcomes and building lasting relationships with his patients. Outside of medicine, he enjoys spending time with his family and traveling.

Keilah Ford, DNP, FNP-C, PMHNP-BC, is a skilled, practiced, and compassionate Psychiatric Nurse Practitioner. Keilah sees patients at KADDs Wellness in Houston, Texas.

She always takes a holistic approach to understanding the mental health challenges people of all ages face and is passionate about treating the whole person — mind, body, and spirit. 

Keilah has over 20 years of experience in psychiatric nursing. She is deeply committed to embracing holistic mental health care.

Since a young age, Keilah has felt a calling to nurture and assist others, which led me to pursue nursing. She strongly desired to make a difference in mental health and pursued a Doctor of Nursing Practice (DNP). She specialized in psychiatric care, alongside obtaining certification as a Family Nurse Practitioner (FNP-C).

Her treatment philosophy revolves around integrating spiritual, mental, social, physical, and emotional aspects, fostering open communication and trust with patients.

As a mental health advocate, Keilah equips patients with knowledge and combats stigmas for the benefit of people everywhere. Her motto, 'Be kind to your mind,' reflects an unwavering dedication to promoting mental well-being and fostering a compassionate society.

Keilah’s journey serves as a shining example of compassionate health care, inspiring hope and healing for a healthier world.