Telehealth Now Available
  • In-person Appointment and Virtual Visits
    We remain focused on caring for our patients by providing high-quality healthcare services when you need them. Our practice is open, and continues to see patients for health care needs.

    We are taking proactive steps to keep our patients and staff safe while serving the needs of our community. Telehealth is enabling everyone to stay at home and communicate with physicians through virtual channels, helping to reduce the spread of the virus.

    • If your provider determines that an office visit is in the best interest of your healthcare needs, an in-person visit will be scheduled.
    • When able to do so, patients arriving at our facility please follow the screening questions posted on the front door to protect our staff and patients.
    • If an existing scheduled appointment can be deferred, it is likely we will be calling to convert your appointment to a telephone consultation or virtual visit.
    • Newly scheduled appointments that can safely and effectively be held virtually will be scheduled for telephone consultation or virtual visit.
  • Welcome to Florida Cardiopulmonary Center!

    Florida Cardiopulmonary Center maintains exceptionally high quality standards for comprehensive Adult Cardiovascular, Pulmonary, Critical care and Sleep medicine care through a compassionate, professional and efficient manner offering the very best in treatment options and procedures in Central Florida.

    Patient Education

    Florida Cardiopulmonary Center patient education materials provided here will help educate our patients about their conditions, tests and procedures. This is for information only and does not replace any medical advice. Our site is not updated regularly so please do discuss your problems or questions with your family physician or our providers.

    Welcome to Florida Amputation Prevention Institute

    Florida Amputation Prevention Institute at Florida Cardiopulmonary Center is one of its own kind. Our goal is to prevent limb amputations by achieving the best patient outcome.We have highly trained, compassionate, board-certified cardiovascular specialists who are fully dedicated to work and passionate for saving limbs and prolonging lives of patients.

    Request an Appointment


    Cardiovascular Specialist

    Dr. Ratan K. Ahuja is a Cardiovascular Specialist; Board Certified in Internal Medicine, Cardiovascular Diseases and Interventional Cardiology. He is Assistant Professor in Internal Medicine at University of Central Florida College of Medicine. Dr. Ahuja is also a fellow of American College of Cardiology and The Society for Cardiovascular Angiography and Interventions.

    Dr. R. K. Ahuja is in practice in Orange City, FL since 2002. He is the Founder and President of Florida Cardiopulmonary Center and Florida Amputation Prevention Institute.


    Pulmonary/CCM/Sleep Medicine

    Dr Karuna Ahuja, MD, FCCP, DABSM is ABIM Board Certified in Internal Medicine, Pulmonary diseases, Critical Care Medicine and Sleep Medicine. She is Assistant Professor of Internal Medicine at University of Central Florida College of Medicine.

    Dr. K. Ahuja is the Director of the AASM accredited state of the art “Central Florida Sleep Institute”, located in Lake Mary that treats patients with sleep apnea, insomnia, excessive sleepiness, restless leg syndrome and narcolepsy, among other issues. The institute provides high-tech testing in most luxuriant settings for the patient comfort.

    • 915 Harley Strickland Blvd
    • Orange City, FL 32763
    • (386) 456-0300
    • Fax: (386) 456-0303
    • 1319 South International Parkway
    • Lake Mary, FL 32746
    • (407) 268-3660
    • Fax: (386) 456-0303


    What People Say About Dr. Ratan Ahuja

    Dr.Ratan Ahuja is my movie star! Great procedures, Great staff, wonderful experience! Absolutely recommend his facilities and services.

    W. Gordon Dick – April 2024

    I am patient of Dr.Ratan Ahuja from 2013; he is efficient, very caring and attentive. I highly recommend his facility.

    Rajina H – April 2024

    Doctor and staffs are wonderful! He treats patients very friendly. Highly recommend his facility to anyone!

    Victor Silvestry - April 2024

    I took my mother to see Dr Ratan Ahuja, very pleased with service, and staff very professional.

    Mary DeJesus- February 2024

    Doctor is the best, staff is impeccable. I would highly recommend to Dr. Ahuja group to anyone. I have no complaints in any locations.

    Ed Pine – 2023

    The new Orange City office is a major improvement and much more comfortable than the old. Wait times seem less and definitely more comfortable. These small but vital issues are crucial in eliminating stress, especially for heart patients. I am not an easy person to develop a trust due to my PTSD after military service. Dr. Ahuja always makes me comfortable, explains things clearly, and answers my questions. I feel comfortable and confident in his care. Dr. Ahuja’s staff is accommodating, and I wish to give a little extra recognition to Ms. Prabha (? spelling) at the front counter for her added attention to challenges when organizing appointments and resolving administrative issues. Also, Jennifer for her outstanding ability as a technician and keeping me in my happy place.

    John Paul – Mar 24, 2020

    Excellent care from a first class doctor. The best as far as I'm concerned

    Frank Stein – Jan 03, 2020

    Staff is always helpful and kind, specially front desk check out.

    Barbara Linton – Dec 19, 2019

    Great physician, he did listen and explain all medical conditions and treatment options. Awesome staff, office very clean and nice environment.

    Thomas Cramer – Dec 17, 2019

    A while back I had an OCTO Pass, ( 8 way cardio by-pass graf ). Being able to attend with Dr. R. Ahuja and his Staff, I feel in my situation, was a lifesaving experience. His Staff and others had to have their A Game ready for that morning's procedures. I still see him for follow-ups and couldn't felt better doing so! Thanks again A Team; this is your Cmdr. & Chief over and out.

    Nov 19, 2019

    I would rate Dr. Ahuja very high on his expertise and his patient concerns. Always a pleasure to see him. He operated on me and I can't say enough about his level of care. His staff are first rate and even though I only come once a year they know me by my first name and treat me with respect and the utmost courtesy.

    John Brown in Debary, fl – Sep 26, 2017

    "Very pleased" is the description which depicts my immense satisfaction with Dr. Ahuja. A heart cath confirmed a blocked circumflex artery. Dr. Ahjua explained in detail the surgical placement of two stents in the artery. The stents were run through the groin into the artery and up to the heart region. It was painless. Dr. Ahuja was present in follow-up to to assure all was seamless and problem free. I was in skillful, competent and knowledgeable hands throughout. Strongly recommend: A+

    STEVEN L. BARCUS, Attorney-at-Law in Lake Mary, FL – Oct 01, 2016

    TVery Knowledge physician with many years of experience, kind, gentle and trustful. Staff is great, welcoming and wonderful.

    AP in Sanford, FL – Jul 12, 2016

    Excellent clinician. Very thorough.

    Michael Donnelly Jr. in Orange City, FL – Jul 09, 2016

    He is a good doctor

    Idelisa Soberal Gutiérrez in Orange City, FL – Jul 09, 2016

    Dr. Ahuja took excellent care of my mother. She had been seen by many doctors before and Dr. Ahuja is the only one who has been able to keep her issues under control.

    Debary , fl – Jul 08, 2016

    Very knowledgeable. Took excellent care of me. Highly recommended.

    Deltona, fl – Jul 08, 2016

    Great doctor and his staff highly recommend

    Deltona, fl – Jul 08, 2016

    Amazing care every time!

    Sarah Jones

    Great service and friendly staff, highly recommended

    Dylan Kinlock

    You guys have such an amazing team of doctor and grate care felt welcomed.

    Yeni Diaz

    Amazing care from a first class Doctor! Would Recommend!

    Brad Smith

    Great Cardiology office in the area. Love how they give back to the community.

    Tina Huynh

    Great service, incredible staffing; highly recommend!

    Dan Hooley

    I highly recommend Dr. Ahuja and his staff!!

    Donald James

    We wish he could be our doctor for everything! He’s the best!!

    Mary Clark

    “You guys are the best!”.

    Clarke Simms

    “You are the best. Thank you for saving me”.

    Sheila Wesley

    “Terrible cramping in my legs that is now gone. Thank you Dr. Ahuja. Great work!”.

    Renee Loger

    “Thank you for working with the VA”.

    William Oconnor

    “Doctor Ahuja is very thorough and kind. He has taken care of me and my husband as well for a very long time. We trust his expert decisions”

    Sonja Scali

    “I love the doctors”

    Paola Benevento

    What People Say About Dr Karuna Ahuja

    Dr. Ahuja is a top notch, 5 star physicians. She has been my pulmonary Dr for many years and has provided me outstanding care. She cares about her patients and knows how to figure out complicated health issues. Thank you

    Brad Brammer – April 2024

    Dr. Ahuja is the most compassionate, caring doctor I’ve ever had the privilege of meeting. She always goes above and beyond for her patients. If it wasn’t because she believed me when no other doctors would because what I had was very hard to diagnose I don’t know if I would be here now “alive”! I owe this woman my life. I truly wish that more doctors would be as dedicated to her patients as Dr. Ahuja.

    Sandy Rocha – April 2024

    Dr. Karuna Ahuja is a wonderful pulmonologist and person. She should be teaching her skillful practice of medicine at a medical school! She is very thorough, taking her time to get an accurate patient history and she is very detailed when analyzing test results. Dr. Ahuja even noted that some of my lab results (outside of her specialty) were out of range, and her advice improved my overall health. She treats the whole patient. I respect that she dictates her clinical notes while she is with you in the exam room, which ensures an accurate medical record and patient comprehension. She takes time to listen and answer questions, a trait that is sadly lacking in many physicians. I do not give five-star ratings to many physicians, but she has earned them. I highly recommend her to anyone seeking pulmonary care!

    Bruce Johnson - May 2024

    Dr. Ahuja has been my pulmonologist for many years. Not only is she a good medical doctor but she's also interested in other aspects of your life. She believes in treating the total person, very caring. The staff has always been very competent and a pleasure to work with.

    Jean Warthen – Sept 2023

    When I had COVID and my general practitioner wouldn't see me, Dr. Ahuja's office got me in immediately. Because of their intervention, I avoided a hospital stay. She did a thorough history and exam. She and her staff were very kind and sympathetic. They got the meds I needed and continue to follow up.

    Angie Gautney – 2023

    I have gone to Doctor Ahuja for years. She is very knowledge and cares about her patience’s. She goes into detail about your condition and the treatment you will be receiving. My wife and I both know she is one of the best. I would recommend her to anyone with pulmonary problems. She spends quality time with you. Thank you Dr Ahuja.

    Ronald Dreibelbis – Jul 28, 2019

    Good Doctor

    Idelisa Soberal Gutiérrez in Debary City, FL – Jul 16, 2016

    have worked in the healthcare industry for over 20 years in that time I have interacted with many clinicians none of which showed the expertise and caring as Dr. Ahuja. She takes her time with her patients looking to solve issues that may not be under her purview to guide them to achieve better health. She is proficient in her specialty and communication going above and beyond expectations. In addition, I found her staff a mirror image of her compassion and understanding.

    Michael Donnelly in Orange City,FL - Jil 08, 2016

    Very professional. Friendly staff.

    Jul 08, 2016

    Dr. K. Ahuja took her time and was very through. She answered all questions and gave information in an understandable manner. She asked for my understanding of what I was told.

    Michael Donnelly in Orange City, FL – Jul 08, 2016

    Very professional. Friendly office staff.

    Orange city, FL – Jul 08, 2016

    Simply the best Dr. of the ones I deal with period! Very caring and compassionate.

    Dale Callahan in Deltona, FL – May 26, 2016

    The best!! Gentle, caring, thorough. Eager to help. Takes time to listen. Great follow up care. Am very grateful to have found a good Doctor who cares and finds solutions.

    Ana Torres in Sanford, FL – Jan 27, 2016

    She is excellent doctor. So caring, compassionate, kind and knowledgeable.

    Mary Vazquez.

    She is a wonderful caring doctor. I recommend her always!!

    William and Michelle Welch

    Always so extremely thankful for all of you at the office.

    David Coody

    Love the staff and doctors every time I come here. I get treated very well, the staff is very kind and the doctors worry about you.

    Vionette Oar

    “Staff is always great! Thank you.

    Michelle Adamets