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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.

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.

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.

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. 

Andrew Martin, MSN, APRN, FNP-C, is a board-certified family nurse practitioner at Southern Secrets Med Spa and Clinic in Conroe, Texas. He takes a integrative approach to healing that avoids overreliance on pharmaceuticals.

Andrew earned an associate’s degree at the Lower Columbia College, College of Nursing in Longview, Washington, before completing his Bachelor of Science in nursing with honors at the University of Texas College of Nursing in Arlington. He fulfilled a master’s degree and post-graduate program at the University of Texas Health Science Center in Houston to earn the family nurse practitioner credentials and certification in emergency and trauma. 

Before joining Southern Secrets Med Spa and Clinic, Andrew worked as an emergency center staff nurse in the busiest Level III trauma center in Texas and as a charge nurse in a chemical detox unit. He is a member of the American Academy of Emergency Nurse Practitioners, the American Association of Nurse Practitioners, and the Sigma Theta Tau.

When he’s not at work, Andrew enjoys spending time with his wife and four children. He likes being outdoors, hiking, hunting, fishing, and hopes to obtain his pilot’s license someday.

Ruby Samuel John, MD, is a board-certified internal medicine physician dedicated to providing compassionate, patient-centered care. She provides expert care to patients at Magnolia Family Medicine in Magnolia, Texas.

Dr. John earned her medical degree from Windsor University School of Medicine in 2005 and completed her residency at Rutgers NJ Medical School in Newark, where she was honored with the Most Humanistic Award in 2009. She went on to serve as Chief Resident and later as an Assistant Clinical Professor at University Hospital until 2011.

Dr. John devoted ten years to the Primary Care Clinic of North Texas, a non-profit organization serving the uninsured. Her commitment to underserved populations was recognized at the Lone Star Cares Fundraising Gala, where she received the Care and Compassion Award in 2014.

Dr. John’s philosophy of care emphasizes listening, trust, and prevention. She believes that effective medicine begins with understanding the whole patient, not just treating symptoms. By encouraging healthy lifestyle choices and focusing on preventive care, she helps her patients reduce the risk of both acute and chronic illness while improving overall wellness.

Outside of her practice, Dr. John enjoys spending time with her husband and their three active boys. She can often be found running outdoors or serving her local church community.