Primary Care

Dr. Wainscott, Dr. Adams, Dr. Shen, Dr. Madni, Dr. DeSimone, and Dr. Colletti are board certified and experienced in treating adult illnesses. Amid providing care for chronic diseases like diabetes and hypertension, our providers treat acute problems such as coughs, colds, and the flu. Patients that require specialized care will be referred to specialists and co-managed care will happily take place. As a patient centered medical home, we strive to incorporate you into your care management. You can expect comprehensive, coordinated, team based care from our providers and staff. We hold ourselves to the highest level of commitment to your well-being and expect you to do the same. For this reason, we provide a number of preventative care services such as vaccine administration, annual wellness visits, and colorectal cancer screening.

We are excited to offer Chronic Care Management (CCM) and Remote Patient Monitoring (RPM) services for our Medicare and Medicare Advantage patients living with diabetes, high blood pressure, heart disease, lung disease, arthritis, and other long-term health conditions. These services provide you with a personal care coordinator that will assist you with medication refills, scheduling appointments, and coordinate other aspects of your care like transportation, community resources and medical equipment. Additionally, our RPM service provides you with a blood pressure monitor that connects directly to our systems via the cloud which allows us to seamlessly monitor your vitals from the comfort of your home. Please contact our enrollment department at 281-769-5256 to learn more!

Sports Medicine

Board certified as family physicians, Dr. Shen, Dr. DeSimone and Dr. Colletti specialize in sports medicine. They provide passionate care, treatment, and prevention of sports related injuries. Both see patients for a variety of problems like concussions, muscle strains, and cramps. Dr. Shen, Dr. DeSimone, Dr. Paul Bing, Dr. Adams, and Dr. Colletti all back the Katy Independent School District Football squads as dedicated team physicians. They also provide deeply discounted sports physicals for KatyISD students at the district's biannual sports physical drive.

Pulmonary Medicine

Pulmonologists specialize in the diagnosis and treatment of respiratory disease and other problems with the lungs. At Medical Colleagues of Texas, patients are seen for asthma, COPD, emphysema, chronic bronchitis, and more. Procedures such as bronchoscopies are performed locally at Memorial Hermann Katy Hospital.


Medical Colleagues of Texas screens, diagnoses, and treats a suite of gastrointestinal conditions. We have over twenty years of experience in providing colorectal cancer screening and caring for a variety of problems including colitis, ulcers, reflux, and irritable bowel syndrome. We recommend our patients receive routine colorectal cancer screening and colonoscopies according to CMS’s standards.

Women’s Health

Our OBGYN physicians provide a comprehensive suite of services ranging from annual preventive screenings to obstetrical care. While delivering hundreds of Katy babies each year, we also conduct well woman exams, gynecologic surgeries, treatment of hormonal disorders, bone density scans, and ultrasounds. We strive to make your woman’s health experience as comfortable as possible. With friendly staff and a cozy atmosphere, Medical Colleagues of Texas will provide you with the professional, compassionate treatment that you deserve.

Our services extend further through clinical trials in partnership with Elligo, an integrated research organization. Please feel free to ask your doctor about what is available or call our office and ask to speak with our study manager.

Additionally, Dr. McCullagh and Dr. Mullin are excited to offer a new cutting edge treatment for women. FemiLift, a 15 minute noninvasive, in office procedure treats symptoms such as: Vaginal Dryness, Painful Intercourse, Urinary Leakage, Postpartum Laxity, Menopausal Symptoms, Recurrent Bladder Infections, and Breast Cancer Treatment Effects. For more information, please call our office.

Clinical Research

One of the many ways we serve our community is by participating in groundbreaking clinical research to find new ways to prevent, detect, or treat disease. Clinical trials are at the heart of all medical advances which offer hope for many people. More information about our program and a list of current our studies can be found by following this link to our research page.



Monday-Thursday: 8:15-5pm, Closed for lunch 12:30-1:30pm

Friday: Main Office 8:15-3pm, Ob/Gyn Office 8:15-12pm

Special Hours: Closed: 5/27/24


Main Office: 281-398-7954

Ob/Gyn Office: 281-398-8639


21700 Kingsland Blvd Suites 201 & 202

Katy, TX 77450

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