Top reviews
After being with the same Dr. and specialists for over 20 years, my husband and I were forced to choose a new primary care Dr because ours was no longer in network. Any doubts or concerns we had going to see a new doctor was erasShow moreed the minute Dr Deepak walked in the room and started asking me what could he do for us today. He immediately put me at ease with his loving and caring attitude and words that he said. He listened attentively and immediately started to work on my many health issues. Dr Deepak is definitely an answer to all our prayers and me and my husband do highly recommend him.
I have been very ill. ER and Urgent Care had been visited. I was able to get in to Dr. Deepak the next day after I called. He was thorough. I was pretty out of it mentally from all the meds I had been taking it but he was able to Show moredo my health review. I am very pleased with this Dr. Will be changing from my Dr. I have had for years which I have not been happy with. Also it appears the labs, pharmacy, ultrasound etc. is in the same building. 5 STAR on professionalism, kindness, and helping me.
Deepak ThiagaRajan, MD, is a highly regarded board-certified primary care internist. Dr. Thiaga Rajan provides primary care and geriatric medicine services at Rajan Medical Group for adults in and around the Inland Empire. He takes a holistic, patient-centered approach to managing acute and chronic health conditions.
Dr. ThiagaRajan earned his medical degree at St. George's University School of Medicine in Grenada, West Indies. He continued his internal medicine training with a residency at Norwalk Hospital - Yale School of Medicine in Norwalk, Connecticut. Dr. ThiagaRajan also received his geriatric medicine fellowship training at The Warren Alpert Medical School of Brown University’s Rhode Island Hospital in Providence, Rhode Island.
Prior to starting his private practice, Dr. ThiagaRajan served as the medical director for several hospitals throughout California. He co-authored multiple published medical articles that outline geriatric health concerns, including chronic disease management and elder abuse. Dr. ThiagaRajan also was a featured speaker at Brown University and Yale University hospitals and area senior centers.
Dr. ThiagaRajan was a recipient of the West Indies International Peace scholarship for multiple years and earned the United Kingdom’s International Award of His Royal Highness Duke of Edinburgh in 1996. When not serving his patients, he volunteers his medical expertise by providing geriatric health assessments to the local community.
At Rajan Medical Group, Dr. ThiagaRajan provides superior health care services that empower people to play an active role in their health. He specializes in the long-term management of chronic conditions that affect the elderly, including diabetes, arthritis, and dementia.
Anemia
Arthritis
Back Pain
Dementia
Diabetes
High Blood Pressure
Primary Care
Weight Loss
Locations (2)
Rajan Medical Group
7974 Haven Avenue,
Rancho Cucaonga, CA, 91730
Deepak V. Thiagarajan, MD
7974 Haven Ave
Suite 210
Rancho Cucamonga , CA, 91730
More About Dr. Deepak Thiagarajan, MD
Practice
Rajan Medical Group
Hospital Affiliations
Specialties
NPI Number
1205052990
Provider's Gender
Male
Background and Education
Years practicing
21.0 years
Education
Awards
Reviews
Dr Deepak is the best doctor ! My grandpa hasn’t wanted to see a doctor in years but he feels confident in being seen by this doctor . Dr Deepak is a good listener and really cares about his patients and he really takes his time with his patients , our appointments are never rushed. I recommend this doctor to all my friends and loved ones who care for the elderly !
Dr. Thiagarajan is very patient and wonderful with his patients . He treated my grandmother until she died and he was the best doctor she’s ever had . He listens to your concerns , is very knowledgeable, and really cares for his patients . I know take my grandpa , he doesn’t like doctors but he likes this one !!
Doctor paid attention to all our concerns
A very good doctor answer all of our questions
This Dr is great he listens to your health problems and treats them or refers you on the spot to a specialist needed. It’s really hard to find a good Dr but I did happy when I pick him. Girl at front desk is also amazing a friendly love it here highly recommend
Dr. ThiagaRajan is a wonderful doctor whom I feel very fortunate to have trusted with my care. He is knowledgeable, compassionate and thorough. I was also impressed by his staff’s knowledge of his practice.
After being with the same Dr. and specialists for over 20 years, my husband and I were forced to choose a new primary care Dr because ours was no longer in network. Any doubts or concerns we had going to see a new doctor was erased the minute Dr Deepak walked in the room and started asking me what could he do for us today. He immediately put me at ease with his loving and caring attitude and words that he said. He listened attentively and immediately started to work on my many health issues. Dr Deepak is definitely an answer to all our prayers and me and my husband do highly recommend him.
I can't thank Dr. Deepak Thiagarajan enough for the special excellent care he provided. He's a unique gift to his patients.
I can't thank Dr. Deepak Thiagarajan enough for the special excellent care he provided. He's a unique gift to his patients.
I can't thank Dr. Deepak Thiagarajan enough for the special, excellent care he provided. He's a unique gift to his patients.
Dr Thiagarajan was great. He was very attentive and thorough. He has very good bed side manners. I am grateful to see there are good drs still.
Dr. Deepak ThiagaRajan was very attentive and thorough.
Office is very clean. Office staff is very nice and helpful. Dr ThiagaRajan is great. Always listens and never rushes you. This office is a very good office.
The most thorough Dr. I’ve seen in years. I loved him!
Friendly staff and Dr Deepak is great he listens when you tell him what’s going on and addresses the problem when able if not he give referrals quick. He’s friendly and I feel comfortable I’m in good hands.
This was my first visit here. Dr ThiagaRajan and his staff were all very nice and helpful. The wait to see the Doctor was very fast. The office is very nice and clean.
This was my first visit here. Dr ThiagaRajan and his staff were all very nice and helpful. The wait to see the Doctor was very fast. The office is very nice and clean.
I switched to Dr. Thiagarajan because he is there five days a week from 9 to 5 available he is attentive he listens. He does not rush the session. He was extremely thorough retested every area of my life where issues were concerned I feel extremely comfortable and confident that it’s 77. I have the medical attention of a great physician if and when I will need it…. I highly recommend him
I am so thankful that I switched my primary to Dr. Thiagarajan ….. he takes time ,he is attentive ,he listens I’m not rushed. I feel very safe very comfortable in his care.
Dr. Rajan is very caring and thorough in addressing needs and concerns. He explains things, and does to meet all the needs presented by the patient.
I really like the video calls. So much easier than going to the office. Of course, cannot be done as much. Dr. Is trying to figure out what is wrong with me after last bout of Covid. I appreciate that.
Dr Deepak is very attentive during consultation. I didn’t feel rushed rather Dr Deepak seems Genuinely concerned with my health and how to best help.
Professional and friendly! Takes the necessary time to understand my issues. Never a long wait to be seen.
DR Deepak, is very attentive during the consultation . Doesn’t make you feel rushed to explain and seems genuinely concerned with my health and the steps to improve it..
Devotion to excellence I appreciate your knowledge doctor Deepack
I have never had to wait. If appointment is 2:00, I am seen at 2. Refreshing. I love the texts and email reminders. Doctor is very nice.
Great professional doctor!
Dr. ThiagaRajan is a very through & caring doctor. Didn't rush through my appointment really took him time and asked a lot. Very professional, great expertise and very knowledgeable. I'm blessed to have him as my doctor.
I really cannot believe how I can make an appointment, get in, and be seen promptly. The last Dr. I had my appointments were cancelled, and I often waited an hour to be put in a room. I am very pleased. I am the sickest I have ever been the last 2 months. Dr. Deepak has been available to help me get well. I am grateful I found this Dr. I had wanted to change for the last several years, but didn’t know if I could find a place that had everything in close proximity. This one does.
Dr Rajan is a very caring and good doctor. Dr Rajan always puts his patients needs first.The office and rooms are always clean Jennifer is always very nice and makes your visit feel comfortable….will always recommend him to family n friends
Are you Dr. Deepak Thiagarajan, MD?
Manage your profile to get more exposure and incoming appointments.
