Oncology Care

Prostate Cancer

Prostate cancer is extensively prevalent among men, with abnormal cells rapidly proliferating within the prostate gland, leading to uncontrolled growth. This condition poses a significant health concern and requires heightened medical attention for effective management and treatment.

Breast Cancer

A woman’s breasts consist of specialized tissues supported by blood vessels, lymph nodes, and nerves. Breast cancer is the uncontrolled growth of cells in the breast, forming an abnormal mass called a tumor. It can occur in both genders, but it’s more prevalent in women.

Lung Cancer

Cancer is caused by abnormal cell growth and division in the body’s tissues and organs. Normally, cells reproduce to maintain tissue health, but when growth control is lost, a tumor forms.

Gastrointestinal Cancer

Gastrointestinal cancer is cancer that affects the organs in the digestive system including the esophagus, stomach, pancreas, gallbladder, liver, small and large intestine, anus and rectum. It is characterized by the uncontrolled growth of normal cells that make up the digestive tract.

Gynecological Cancer

Cancer is the abnormal and progressive growth of cells in any part of the body. Gynecological cancers affect the female reproductive system, including the uterus, ovaries, fallopian tubes, peritoneum, cervix, vulva, and vagina.


Shannon Johnson

Shannon Johnson, NP


Samina Asfandiyar APRN, MSN, FNP-C

Oncology Care
Saleha Sajid

Saleha Sajid MD

Jonathan Lu

Jonathan Lu, MD

Jonathan Cheng

Jonathan Cheng, MD

David P Ellent

David P Ellent MD

Oncology, CEO and Founder
Closer to Home

Services Available

Primary Care Physicians

Primary Care Doctors, Physical Wellness Examinations, Family Medicine, Internal Medicine, Physical Therapy, and Nutrition

Senior Care

Accepted Medicare & most insurances. Care centered around you, beyond the doctors' office. Dedicated team approach.

Oncology Care

Prostate Cancer, Breast Cancer, Lung Cancer, Gastrointestinal Cancer, Gynecological Cancer.


Experience cutting-edge radiation therapy with Varian Clinac 2 liX at Genesis Baytown and Tomball.


Osteoarthritis, Bursitis, Tendonitis, Rheumatoid Arthritis, Ankylosing Spondylitis, Reactive Arthritis, Psoriatic Arthritis, and more.

General Surgery

Hiatal Hernia Repair, Breast Lumpectomy and Mastectomy, Benign Breast Disease Treatment, Colon and Rectal Surgery. and more.


Whether you're facing head & neck cancer, thyroid disease, or simpler concerns like ear pressure and allergies.

Pain Management

The evaluation, diagnosis, and treatment of pain to put you on a path towards a better quality of life.


Orthopedic and Spine Surgery, Hip Care and Replacement, Knee Specialists & Treatment, Shoulder and Foot and Ankle Care, and more.


Fractures and sprains, Bunions and hammertoes, Plantar warts/ verrucas, Nail disorders, Arthritis treatment, Nerve problems, and more.


We are committed to help our patients get properly diagnosed to help treat diabetes and help prevent other health problems and disease.

Urgent Care Centers

Asthma Attacks, Laceration & Stitches, Sprains, Strains & Breaks, Vomiting & Diarrhea, Ear Infection, Urinary Tract Infection, STD's, and more.

Diagnostic Testing

Rapid COVID-19 Testing, PET/CT, Ultrasound, Bone Density, X-Ray, Lab Testings, Holter Monitors, Sleep Studies, MRI, Ambulatory Blood Pressure Monitors, and more.

In-House Laboratory Testing

Genesis Medical Group is pleased to offer In-House Laboratory Testing for the convenience of our patients in our CLIA-certified laboratory.

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