Our care team
Our Providers
Meet the physician, physician assistants and nurse practitioner who care for adults at Lifecare Primary Medical in Richmond, TX.
Who will I see at Lifecare Primary Medical?
Our practice is led by Samira Khan, MD, a board-certified internal medicine physician. She works with two physician assistants and a family nurse practitioner, so patients can be seen promptly, including for walk-in and same-day visits. Physician assistants and nurse practitioners are licensed clinicians who diagnose and treat illness, order tests and prescribe medications, working as a team with the physician.

Physician
Samira Khan, MD
Internal Medicine
Dr. Khan is a board-certified internal medicine physician focused on preventive healthcare, annual physicals, adult primary care, and the long-term management of conditions such as hypertension and diabetes. She is affiliated with Memorial Hermann Katy Hospital and speaks English, Hindi, Punjabi and Urdu.

Physician assistant
Tanveer Khan, MPAS, PA-C
Physician Assistant
Tanveer Khan graduated from the University of North Dakota School of Medicine and Health Sciences. He is certified by the National Commission on Certification of Physician Assistants (NCCPA), licensed by the Texas Medical Board, and a member of the American Academy of Physician Assistants (AAPA).

Physician assistant
Sadaf Siddiqui, MPAS, PA-C
Physician Assistant
Sadaf Siddiqui graduated from the University of Texas Medical Branch. She is certified by the NCCPA, licensed by the Texas Medical Board, and a member of the American Academy of Physician Assistants and the Texas Academy of Physician Assistants.
She brings experience as a hospitalist with a focus on internal medicine and cardiology, and as a clinician in primary care, women’s health and geriatrics. She practices a team-based approach that actively involves patients in their own care.
Nurse practitioner
Nettah Ndungu, FNP-C
Family Nurse Practitioner
Nettah Ndungu is a board-certified family nurse practitioner who joined the practice in November 2020. She began her nursing career at Memorial Hermann-TMC in 2008 and earned her master’s degree from The University of Texas Health Science Center at Houston (UTHealth).
She is a member of the American Academy of Nurse Practitioners (AANP) and AMDA – The Society for Post-Acute and Long-Term Care, with a background that includes internal medicine, oncology and gastroenterology. She works collaboratively with patients to improve their quality of life.
Patient reviews
What patients say about our providers
Reviews from our Google Business Profile, shown as patients wrote them. Surnames are shortened to an initial for privacy.
Dr. Khan and the entire staff at Lifecare Primary Medical are outstanding. The team is professional, caring, and always takes the time to listen to my concerns. Appointments are efficient, and I never feel rushed. Dr. Khan provides thorough care and explains everything clearly. I highly recommend Lifecare Primary Medical to anyone looking for a knowledgeable and compassionate primary care provider.
Dr. Khan and her team of associates and the rest of her staff are extremely knowledgeable and professional. She takes her time to completely address patient concerns thoroughly without missing a beat. I would not hesitate in recommending her to my family and friends. Thank you Dr. Khan!
I had a great experience at Life Care Primary Medical Care. The staff was friendly, professional, and very caring. The provider listened to my concerns and made me feel comfortable throughout the visit. Highly recommend!
Have a good experience with this facility, clean and organize. Staff attentive and accommodating, very helpful. Physician gave ample time and listen to my concerns. I highly recommend this clinic.
The clinic is well organised. Dr. Samira Khan always show great care for my family members. She managed to get my dad’s blood pressure and weight down a lot. Their staff are fast and make us feel welcomed every visit.
Amazing group of highly-qualified, dedicated, passionate and caring physicians in the greater Houston area!! I had a followup visit- 2 weeks ago- and i was provided the utmost care and compassion but every staff member, especially by Dr Khan. Her delicate, charismatic approach and disease management is really amazing. I feel so much better now about my health in their hands !!
One of the best clinics I’ve come across! Doctors are very knowledgeable and attentive bedside manner. Office staff are very friendly! Had a great experience for my annual check up, very detailed and listened to all my concerns. Would recommend this clinic to all my friends and family!
Dr Samira Khan was very caring and helpful. I am glad that the office staff was so friendly and got me in the same day for check up. Everyone was very nice, and it is nice to be treated well since you are the patient in need of help. Caring for patients creates a good atmosphere . I will continue to come here. I was very well taken care of
I would like to express my sincere gratitude to Dr. Samira Khan, M.D., and her incredible team at LifeCare Primary Medical Associates. Their exceptional care, dedication, and expertise have made a profound difference in my health and well-being. I am truly grateful for their guidance and support every step of the way.
The best primary care doctor in town! She addressed all my concerns and did a detailed physical examination. She answered all of my questions. Her staff is also very cooperative.
I had a wonderful experience with this Life Care primary medical company. The staff was professional and caring. Everyone treated me with kindness and respect, and it was clear that they genuinely care about the people they serve. The team did an outstanding job, and I truly appreciate their dedication and hard work. I would highly recommend this company to anyone looking for quality care and exceptional service. Thank you to the entire staff for everything you do!
Lifetime Medical center, is a perfect place to go for your medical appointment, the doctor and the nurses very friendly, welcoming, and professional in all what they do. She is my family Doctor ,they are just awesome.
Our location
Visit Our Richmond Clinic
All of our providers see patients at our Richmond clinic on South Peek Road. We do not have other office locations.
Lifecare Primary Medical
7103 South Peek Road, Suite 520
Richmond, TX 77407
281-712-7757
Office hours
| Monday – Friday | 8:30 AM – 5:00 PM |
| Saturday – Sunday | Closed |
Common questions
Questions about our providers
What is a physician assistant (PA-C)?
A physician assistant is a nationally certified, state-licensed clinician who examines patients, diagnoses and treats illness, orders tests and prescribes medications, working in collaboration with a physician.
What is a family nurse practitioner (FNP-C)?
A family nurse practitioner is an advanced practice registered nurse with graduate training who provides primary care, including diagnosis, treatment and prescribing.
Can I choose which provider I see?
Yes. Let our staff know your preference when you call 281-712-7757. For same-day visits, you will usually see the first available provider.
Do your providers see children?
Our practice focuses on adults.
Schedule with our care team
Request an appointment or call our office. Our office will contact you to confirm your visit.