Cardiologists near you

Cardiologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Chicago, IL
  4. Dallas, TX
  5. Denver, CO
  6. Detroit, MI
  7. Houston, TX
  8. Los Angeles, CA
  9. Miami, FL
  10. Minneapolis, MN
  11. New York, NY
  12. Orlando, FL
  13. Philadelphia, PA
  14. Phoenix, AZ
  15. Riverside, CA
  16. San Antonio, TX
  17. San Diego, CA
  18. San Francisco, CA
  19. Seattle, WA
  20. St. Louis, MO
  21. Tampa, FL
  22. Washington, DC

Chiropractors near you

Chiropractor providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC

Dentists near you

Dentist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC

Dermatologists near you

Dermatologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Chicago, IL
  5. Dallas, TX
  6. Denver, CO
  7. Detroit, MI
  8. Houston, TX
  9. Los Angeles, CA
  10. Miami, FL
  11. Minneapolis, MN
  12. New York, NY
  13. Orlando, FL
  14. Philadelphia, PA
  15. Phoenix, AZ
  16. Riverside, CA
  17. San Antonio, TX
  18. San Diego, CA
  19. San Francisco, CA
  20. St. Louis, MO
  21. Tampa, FL
  22. Washington, DC

Family Physicians near you

Family Physician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC

OB-GYNs near you

OB-GYN providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC

Ophthalmologists near you

Ophthalmologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Diego, CA
  19. San Francisco, CA
  20. St. Louis, MO
  21. Tampa, FL
  22. Washington, DC

Orthopedic Surgeons near you

Orthopedic Surgeon providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. New York, NY
  13. Orlando, FL
  14. Philadelphia, PA
  15. Phoenix, AZ
  16. Riverside, CA
  17. San Antonio, TX
  18. San Diego, CA
  19. San Francisco, CA
  20. Seattle, WA
  21. St. Louis, MO
  22. Tampa, FL
  23. Washington, DC

Pediatricians near you

Pediatrician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC

Physical Therapists near you

Physical Therapist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC

Podiatrists near you

Podiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC

Psychiatrists near you

Psychiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC
Dr. Deepak Thiagarajan, MD, Internist

Dr. Deepak Thiagarajan, MD

Internist

7974 Haven Avenue,
Suite 210
Rancho Cucamonga, CA 91730

Overall rating

Top reviews

I recently had my first visit, and I was very impressed. The doctor was incredibly attentive and caring, making me feel heard and valued as a patient. They took the time to understand my concerns and provided clear, thoughtful expShow morelanations. Tina was very friendly and professional, she does her work and got back to me right away which made the overall experience very pleasant. I'm looking forward to continuing my care here! Hopefully this service continues as is.

Claudia L • January 23, 2025

I had my first appointment with Dr. Thiagarajan today, 2/12/25. Finally, I was able to discuss everything about my health! I now have a medical professional I can trust, to discuss issues that have been bothering me for so long wiShow morethout getting the attention or correct treatment from my previous providers. Besides his knowledge and excellency, Dr. Thiagarajan is compassionate, kind and trustworthy!

Clarisa C • February 13, 2025

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Got questions for
Dr. Deepak Thiagarajan, MD?


Location

Deepak Thiagarajan MD

7974 Haven Avenue,
Suite 210
Rancho Cucamonga, CA, 91730


More About Dr. Deepak Thiagarajan, MD

Practice

Deepak Thiagarajan MD

Hospital Affiliations

  • Saint Bernardine Medical Center
  • Community Hospital of San Bernardino
  • San Antonio Regional Hospital

Specialties

  • Internist

NPI Number

1205052990


Background and Education

Years practicing

21 years

Education

  • Brown University, 2007
  • Yale University, 2006
  • Saint George's University, 2002

Awards

  • International Peace Scholarship

Reviews

4.99
111 Reviews

Dr Deepak Thiagarajan really cares about his patients. He listens and answers your concerns regarding your healthcare. He explains your diagnosis and gives the best health care recommendations to gain better health and to be healthier. I’m very fortunate to have found Dr Thiagarajan. His medical staff are outstanding and very professional.

Tanya M • March 07, 2025

This was my first visit and I was very pleased with the care I got from Dr. T.

Michael S • February 18, 2025

This was my first visit to Dr. DT. and I was very impressed. Both the office personnel and Dr. DT exhibited professionalism throughout the time I was there. The appointment was on time, and Dr. DT was as thorough with his examination as he was with his demeanor. I look forward to retaining him as my Primary Care physician.

Nana D • February 14, 2025

He listens to my concerns, pays attention to details, very helpful.

Moni D • February 13, 2025

I had my first appointment with Dr. Thiagarajan today, 2/12/25. Finally, I was able to discuss everything about my health! I now have a medical professional I can trust, to discuss issues that have been bothering me for so long without getting the attention or correct treatment from my previous providers. Besides his knowledge and excellency, Dr. Thiagarajan is compassionate, kind and trustworthy!

Clarisa C • February 13, 2025

Excellent first visit. Receptionist very cordial and sweet. Dr Thiagarajan exemplary first impression. Very Attentive and involved.

Ernesto F • February 13, 2025

I recently had my first visit, and I was very impressed. The doctor was incredibly attentive and caring, making me feel heard and valued as a patient. They took the time to understand my concerns and provided clear, thoughtful explanations. Tina was very friendly and professional, she does her work and got back to me right away which made the overall experience very pleasant. I'm looking forward to continuing my care here! Hopefully this service continues as is.

Claudia L • January 23, 2025

Great

Afsheen J • December 04, 2024

I've been seeing Dr. Deepak for about 2 years now. He is very knowledgeable and caring. I would recommend him very highly.

Alfred C • October 29, 2024

Dr Rajan is always very thorough and professional. Very lucky to have him as my doctor

Carolyn T • October 03, 2024

Dr Deepak is a wonderful doctor. Dr Deepak genuinely cares about his patients and their needs. Dr Deepak staff are very kind. Especially Vanessa. She a terrific nurse.

Johnny V • August 27, 2024

The most caring and understanding doctor I’ve ever met. He takes his time with me every time. He wants the best for me and that’s something rare these days.

Erin K • August 08, 2024

Accessible: I called in after a notification regarding a lab result. Dr. Deepak made an appointment for me for the following Monday. Thorough: After reviewing all of the data and discussing my situation he took the initiative to locate and refer me to a specialist for my condition. Professional: Dr. Deepak followed through to insure that the referral met with the Insurance carrier's requirements for my care.

Frank H • August 06, 2024

We the patients love dr. Deepak. He is a seasoned, and highly skilled Physician. As one of his regular patients l feel that I'm blessed to have come across an elite Physician

Richard H • August 02, 2024

I recently visited Dr. Thiagarajan and had a great experience. He was attentive, listened to my concerns, and provided clear explanations about my condition. The staff was friendly, and the office had a welcoming atmosphere. I left feeling confident in my treatment plan. Highly recommend!

Clarence J • July 31, 2024

Waiting to get seen was really fast doctor took time to listen to my concerns. Work on my referral being closer to my home. Really satisfied.

Edgar B • July 15, 2024

I love Dr. ThiagaRajan’s service he’s always so comprehensive. I love that he gives his individual attention and really listens to you and your needs. He’s very charismatic and very reassuring.

Valeria F • July 14, 2024

He is a great doctor and responsive to your health needs.

Anne A • April 25, 2024

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 !

Juan C • April 12, 2024

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 !!

Juan C • April 05, 2024

Doctor paid attention to all our concerns

Mariakutty I • March 29, 2024

I can't thank Dr. Deepak Thiagarajan enough for the special excellent care he provided. He's a unique gift to his patients.

Richard H • February 27, 2024

I can't thank Dr. Deepak Thiagarajan enough for the special, excellent care he provided. He's a unique gift to his patients.

Richard H • February 27, 2024

Dr. Deepak ThiagaRajan was very attentive and thorough.

Marisela Z • February 25, 2024

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.

Debra S • February 16, 2024

The most thorough Dr. I’ve seen in years. I loved him!

Bonnie M • February 13, 2024

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.

Debra S • January 13, 2024

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.

Debra S • January 13, 2024

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.

Shirley L • January 13, 2024

Professional and friendly! Takes the necessary time to understand my issues. Never a long wait to be seen.

David E • January 04, 2024

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