What patients are saying
Overall rating
4.94
Average wait time
4.43
Bedside manner
4.96
“Dr Raj is the absolute best. He is compassionate, listens intently and communicates with genuine care.”
Patricia P.December 24, 2025
“Everything was so easy to do. Booking the appointment, checking in, everything.
The nurse was thorough when gathering information. I wasn’t asked the same questions over and over like a lot of doctor’s offices do.
Dr. Raj was friendly, listened, didn’t talk down to me or dismiss my concerns like a lot of doctors do. He addressed everything, helping to find a new plan of action and when I accidentally left some papers behind they called me about it and emailed them to me so I would have them.
I was exceptionally pleased with the practice and am glad I found my new PCP. ”
Frances P.August 29, 2025
About Dr. Rajasekaran Annamalai
Dr. Raj is our experienced Internal Medicine physician, board certified by the American Board of Internal Medicine, and has been in private practice since 2008. He earned his Bachelor of Medicine, Bachelor of Surgery from Stanley Medical College and completed his Residency in Internal Medicine at University of Missouri, University Hospital.
The guiding principle of his practice has always been to go the extra mile for the care of his patients. Whether carefully listening to your concerns, clearly explaining the treatment plan, or discussing your medications, you can be assured of his meticulous attention to detail in every aspect of your care.
Coming from a research background with a PhD in Biochemistry, Dr. Raj strives to bring the same spirit of scientific inquiry into the care of his patients. In this era of rising health care costs, he understands the pressing need for cost-effective, high-quality care. Dr. Raj looks forward to working closely with you to help you achieve your health goals.
Dr. Raj is fluent in English and Tamil. He lives with his lovely wife and their beloved son in the South Tomball area.
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In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
UnitedHealthcare
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Developmental disabilities
Upper respiratory Infection (URI)
Underactive thyroid
Chronic nose and throat inflammation due to allergies
Chronic high blood pressure
Coronary Artery Disease
Developmental disabilities
Upper respiratory Infection (URI)
Underactive thyroid
Chronic nose and throat inflammation due to allergies
Office location
North Houston Internal Medicine & Pediatric Clinic
11011 Northpointe Blvd, Ste C, Tomball, TX 77375
Education and background
Practice names
Hospital affiliations
- Tomball Regional Medical Center
Board certifications
- American Board of Internal Medicine
Education and training
- Medical School - Stanley Medical College, Bachelor of Medicine, Bachelor of Surgery
- University of Missouri, University Hospital, Residency in Internal Medicine
Languages spoken
- English
- Tamil
Provider's gender
Male
NPI number
1932210234
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.94
Wait time
4.43
Bedside manner
4.96
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
456 reviews
Most relevant
Dr Raj is the absolute best. He is compassionate, listens intently and communicates with genuine care.
December 24, 2025Patricia P.Verified patient
Had my first appointment and was pleased the way the staff treated me. Dr was very patient and listened to my concerns.
March 4, 2025Helen A.Verified patient
Dr. Raj is very knowledgeable and he is amazing. I been going for a few years now, shows he care about his patients.
April 1, 2025Bridgett P.Verified patient
Dr. Raj was very nice, knowledgeable and professional. He listened to my concerns and answered all of my questions.
September 23, 2023Initials hidden
Very thorough and took his time to listen and address any of my concerns I’m so thankful I found Dr. Raj. Thank you!!
October 2, 2022Christy G.Verified patient
Dr. Raj introduced himself right off, he listened to my concerns, and looked a images of my issue.
September 3, 2024Kathy B.Verified patient
Dr. Raj is amazing. My family and my parents now drives nearly an hour to see him; he's that great of a doctor.
June 29, 2023Cynthia J.Verified patient
He was very thorough, professional, and a great listener. I am going back in 4 weeks to get my diabetes in-check.
August 9, 2022Initials hidden
Great Doctor! He’s very understanding and listened to my concerns. He took the time to explain my health conditions.
December 29, 2021Wynn B.Verified patient
Love this doctor, no funny business with billing, always addresses my concerns and moves us in the right direction.
November 20, 2021Eric D.Verified patient
The Doctor and the PA were great. Spent a good amount of time with me going over symptoms and what to expect.
March 28, 2022Jennifer L.Verified patient
He was thorough and asked questions. Wasn't quick to assume and write a prescription to send me on my way.
More than 1 year agoInitials hidden
I would highly recommend this Doctor Rajasekaran Annamalai, MD
for all my family members and friends.
February 14, 2023Adian A.Verified patient
Dr Raj and his staff were very friendly and knowledgeable! Clean and friendly environment.
March 11, 2024Leah W.Verified patient
Dr. Raj always cares what’s going on with his patients. He checks up on you and asks how you’re doing
June 12, 2022Aaron R.Verified patient
The nurse was very nice and helpful, the doctor was great too. He showed a real concern for my health
March 28, 2022Priscila E.Verified patient
Dr Raj was referred to me by my cardiologist & he’s just an awesome Dr!
December 28, 2024Paige W.Verified patient
It was a pleasant visit. Dr. Paid full attention to my issue and prescribed solutions
January 3, 2024Masil M.Verified patient
Excellent knowledgeable Dr. I will recommend him to anyone. He is very good in follow up
July 18, 2023Zubaida B.Verified patient
I love coming to Dr. Raj. He really listens to you and tries to help you as best he could.
November 19, 2022Aaron R.Verified patient
I have always had great visits all questions answered and diagnosed and felt better afterwards.
More than 1 year agoYM
Great dr and very clear on explaining and answering any questions
More than 1 year agoInitials hidden
Depending on the day it be a bit of a wait but this time my time was 15 mins
January 26, 2023Felicia W.Verified patient
very friendly and a great listener! definitely recommend him
February 20, 2024Dana A.Verified patient
He was very professional. Listened to my concerns and got to the point.
More than 1 year agoYvonne E.Verified patientVideo visit
Great Doctor who really listens and is Very Thorough !!!
May 6, 2021Amzy H.Verified patient
Dr Raj is great doctor, good listener clean office
September 23, 2021Irfan A.Verified patient
Friendly
February 10, 2026Noorjahan M.Verified patient
No comment
February 5, 2026Javier D.Verified patient
good experience except for the long wait time,
October 30, 2025Soniya C.Verified patient
Everything was so easy to do. Booking the appointment, checking in, everything.
The nurse was thorough when gathering information. I wasn’t asked the same questions over and over like a lot of doctor’s offices do.
Dr. Raj was friendly, listened, didn’t talk down to me or dismiss my concerns like a lot of doctors do. He addressed everything, helping to find a new plan of action and when I accidentally left some papers behind they called me about it and emailed them to me so I would have them.
I was exceptionally pleased with the practice and am glad I found my new PCP.
August 29, 2025Frances P.Verified patient
It was all good and fine. No issues.
August 15, 2025Sivakumar A.Verified patient
Great experience!
May 16, 2025Vanessa D.Verified patient
yes
February 26, 2025Ronald C.Verified patient
Dr Raj is the best! He has a fantastic bedside manner. Even when he has patients waiting in other rooms, he's never let me feel as if he's in a hurry. He takes his time with me and makes me feel as if I matter.
December 24, 2024Angela C.Verified patient
I trust Dr. Raj
December 17, 2024Michael G.Verified patient
Dr. Raj was extremely helpful in diagnosing my condition. He did all the relevant to root out any causes for an efficient course of action.
November 8, 2024Muhammad G.Verified patient
I do not hesitate to recommend Dr Raj. He has never made me feel rushed and has always taken the time to listen to my concerns and thoroughly explains everything in detail.
October 29, 2024Ashley C.Verified patient
I am a caregiver and I care for Three adults. Dr. Raj. Is very personable and on top of their needs. He is very wise when it comes to medication choices. He will not have a problem giving out a referral for a specialist if needed. His assistant Kim is in sink with Dr. Raj. And most helpful team. They work above high demands to help people.
Highly recommended!!!
October 28, 2024Kennith E.Verified patient
Would recommend this doctor hundred percent it’s always listening and looking out for my best interest and provides full medical help and very friendly ?
October 15, 2024Jose G.Verified patient
Dr. Raj is by far the most caring and scientific healthcare provider I've ever had. He is extremely responsible and how he dispenses Healthcare advice and recommendations. Not to mention that he's just a great person overall!
October 7, 2024Rodney B.Verified patient
Dr. Raj is a very personable and professional doctor. He always greets you immediately as he enters the exam room with a smile and a hand shake.
Important to my visit that I felt heard and seen. I'd only been to him one time before and he remembered our visit and concerns.
More than 1 year agoInitials hidden
Great dr
August 22, 2024Mohammad A.Verified patient
Lots of overbooking and longer wait times. I had a 945am appointment but wasn’t seen until 1020.
Dr Raj is great as he’s friendly and listens to my issues. I also like the fact that they have Labcorp onsite for bloodwork.
August 6, 2024Felicia W.Verified patient
Positive, would go back.
July 17, 2024Initials hidden
Great doctor def recommend
May 10, 2024Dana A.Verified patient
Efficient Doctor. Very good staff
February 26, 2024Masil M.Verified patient
They Called to confirm appt. The dr and his staff are amazing. They have lab core right in the office. I didn’t feel rushed. They called the next day with my lab results. Love this office!!
February 14, 2024Theresa S.Verified patient
The staff was kind and friendly. Dr. Raj listened to my history and was patient allowing me to answer his questions. He explained his treatment plan for me very clearly. I appreciated the care I was given.
More than 1 year agoLaura C.Verified patient
Very nice people and very understanding.
January 26, 2024Emilio C.Verified patient
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How soon can I make an appointment with Dr. Rajasekaran Annamalai?
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Is Dr. Rajasekaran Annamalai accepting new patients?
Dr. Rajasekaran Annamalai generally accepts new patients on Zocdoc. You can see Dr. Annamalai's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Rajasekaran Annamalai accept my insurance?
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Which hospital is Dr. Rajasekaran Annamalai affiliated with?
Dr. Rajasekaran Annamalai is affiliated with Tomball Regional Medical Center.
What practice does Dr. Rajasekaran Annamalai work with?
Where is Dr. Rajasekaran Annamalai's office located?
Dr. Rajasekaran Annamalai's office is located at 11011 Northpointe Blvd, Tomball, TX 77375.
Which board certifications does Dr. Rajasekaran Annamalai have?
Dr. Rajasekaran Annamalai is certified by American Board of Internal Medicine.
What are common reasons for patients to see Dr. Rajasekaran Annamalai?
Dr. Rajasekaran Annamalai frequently sees patients for Annual Physical, Arthritis, Illness, Sleep Problems, and Weight Loss Consultation. You can see other visit reasons for Dr. Rajasekaran Annamalai on their profile.
What languages does Dr. Rajasekaran Annamalai speak?
Dr. Rajasekaran Annamalai speaks English and Tamil.
How do patients rate Dr. Rajasekaran Annamalai in reviews?
456 patients have reviewed Dr. Rajasekaran Annamalai. The overall rating for this doctor is 4.94/5. They have a 4.96/5 rating for bedside manner and a 4.43/5 rating for wait time. You can read individual reviews and ratings on their profile.