CELEBRATING 20 YEARS OF AMERICAN BOARD OF INTERNAL MEDICINE/NEPHROLOGY DIPLOMATE
Nephrology, internal medicine
Nephrology conditions and services
Acute kidney injury diagnosis and management
Chronic kidney disease diagnosis and management
Kidney stone analysis and prevention
Urinary abnormalities proteinuria and hematuria
Nephrotic syndrome
Glomerulonephritis
Hypertension, primary and secondary hypertension
Critical Care Nephrology
Fluid and electrolyte imbalance
Acid base disturbances
Hemodialysis
Continuous Renal Replacement Therapy (CRRT)
Peritoneal dialysis (CAPD and CCPD)
Plasmapheresis/Plasma exchange
Kidney transplant referral and management post transplant
(living related and autologous)
Geriatric nephrology
These conditions are managed by kidney doctors (nephrologists)
Dr. Katneni brings in her vast experience in both clinical and clinical research nephrology to Newport Beach, Orange County where she started her own private medical practice.
Hospital affiliations
Hoag hospital Newport Beach, Hoag Hospital Irvine
She provides dialysis care in hospitals as well as consultations as a nephrologist (kidney doctor) in Newport Beach, Orange County.
Office location
20241 Southwest Birch St, Suite104, Newport Beach, CA 92660
PHONE: 949-490-4044
Hours of operation
.Monday-Friday: 10 AM to 5 PM
For after hour care: call 949-490-4044 and leave a message. We will get back to you as soon as possible.
Please call 949-490-4044 for a routine appointment to leave a message, we will get back to you within next business day.
Contact Us
The care you deserve.
Hoag Newport Beach and Hoag Irvine affiliated nephrologist ((kidney doctor) with more than 20 years of experience providing most comprehensive and one and one care for kidney and dialysis patients in Orange County.
Ratnaja Katneni MD, Internal Medicine & Nephrology
20241 Southwest Birch St, Suite 104, Newport Beach, California 92660, United States
Phone: 949-490-4044
Hours
Monday : 10:00 AM - 5:00 PM
Tuesday::10: 00 AM - 5:00 PM
Wednesday: 10:00 AM - 5:00 PM
Thursday: 10:00 AM - 5:00 PM
Friday: 10:00 AM - 5:00 PM
Office staff is available to take appointments and calls.
Please leave a voicemail and our office staff will contact you at the earliest.
Saturday: Office is closed
Sunday: Office is closed
Call 949-490-4044 during office hours for appointment
If you are experiencing a medical emergency, please contact 911
What our patients are saying about us:
OUR PATIENT EXPERIENCE (COMMENTS FROM YELP, SHARECARE AND HEALTHGRADES)
- Dr Katneni and her staff are on top of it and listened to my condition.
I feel I was heard and Dr Katneni is taking additional precautions to monitor for my future health as well.
Very easy to talk to , caring and knowledgable.
She also had all my records available to ask about other medications I had and know my full work up.
Patty at the front desk helped facilitate appointments and getting me dialed in.
I am very happy I chose their practice.
Sincerely
Kurt 
- C S.
- HUNTINGTN BCH, CA
- 0 friends
- 2 reviews
1/26/2024My husband is being treated by doctor Katneni. I am always present during the time he is being cared for as he has problems communicating. I am an RN by profession and can tell you that Dr Katneni is very efficient, has excellent ways of communicating and cares truly for her patients. Patty at the front desk is one of the most professional medical assistant I have seen and ensures that all is going well during the visits and follow up. I HIGHLY recommend this doctor and her staff.
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- Judy F.
- Irvine, CA
- 0 friends
- 3 reviews
- 10/30/2023Dr. Katneni has went above and beyond to help my mother Virginia Purmort as a kidney specialist. I highly recommend her. She cares for my mom like it was her own. My mom adores her. She always finds a solution for her kidney care. She takes her own personal time to call my mother at home at anytime. We continue to see my mom health improving with her help.
- Comment from Ratnaja K. of Ratnaja Katneni MD
Business Owner11/14/2023 Dear Judy,
Thank you for taking the time to leave us a review and we appreciate your feedback. … Read more
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- Stacey B.
- Carlsbad, CA
- 0 friends
- 8 reviews
- 13 photos
- 10/26/2023Dr. Katneni is one of the most caring, thorough and physicians I have ever encountered. She takes the time to really talk to you and to understand your condition holistically. She is solution oriented and willing to take the time to communicate with your team of physicians to coordinate care. I would highly recommend her and couldn't be more grateful for the excellent care she has offered.
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- Christy C.
- San Clemente, CA
- 0 friends
- 10 reviews
- 10/25/2023Dr KATNENI is one of the most caring and supportive doctor I've met in a very long time.
I met her as the Nephrologist on staff at Hoag Irvine.
I continued to see her for 4 months after being discharged. She kept a very close eye on me about every two weeks, with ordering different labs. My blood pressure was not consistent until today. She was very happy with my numbers. I have continued to feel so much better than ever before!
She spent a lot of time with me on each visit. Returning my calls promptly and taking care of my need's immediately via my pharmacy.
He office manager is very friendly and always took my calls. Quality of service from all affected with her practice is friendly and professional. I was very scared when entered the hospital but I met Dr KATNENI and she will be my nephrologist forever!!
Thank you Dr Katneni for getting me back to a healthy and happy life
Christy C
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- Esperanza B.
- Garden Grove, CA
- 0 friends
- 1 review
- 4/4/2023DR.Ratnaja Katneni is incredible. Not only has she taken great care of my heath, but also she is lovely to speak with at every appointment, it's rare to find a doctor that combines such personal touch and care for patients as a person with outstanding quality of medical care. I highly recommend becoming her patient!.
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- Suzie B.
- San Francisco, CA
- 0 friends
- 1 review
- 1/19/2023Dr. Katneni is kind, compassionate and genuinely cares about her patients. You can expect her full attention and a thorough examination. She is an internist that specializes in nephrology (kidneys) and hypertension (high blood pressure). Her office is small and cozy and there is always ample parking available. The office staff is friendly and attentive. Whether you are looking for a primary care physician, a kidney specialist, or even just a second opinion, you can't go wrong here. Dr. Katneni is accepting new patients. Do yourself a favor and start here.Report review
10/30/2023Dr. Katneni has went above and beyond to help my mother Virginia Purmort as a kidney specialist. I highly recommend her. She cares for my mom like it was her own. My mom adores her. She always finds a solution for her kidney care. She takes her own personal time to call my mother at home at anytime. We continue to see my mom health improving with her help.
10/26/2023Dr. Katneni is one of the most caring, thorough and physicians I have ever encountered. She takes the time to really talk to you and to understand your condition holistically. She is solution oriented and willing to take the time to communicate with your team of physicians to coordinate care. I would highly recommend her and couldn't be more grateful for the excellent care she has offered.
10/25/2023Dr KATNENI is one of the most caring and supportive doctor I've met in a very long time.
I met her as the Nephrologist on staff at Hoag Irvine.
I continued to see her for 4 months after being discharged. She kept a very close eye on me about every two weeks, with ordering different labs. My blood pressure was not consistent until today. She was very happy with my numbers. I have continued to feel so much better than ever before!
She spent a lot of time with me on each visit. Returning my calls promptly and taking care of my need's immediately via my pharmacy.
He office manager is very friendly and always took my calls. Quality of service from all affected with her practice is friendly and professional. I was very scared when entered the hospital but I met Dr KATNENI and she will be my nephrologist forever!!
Thank you Dr Katneni for getting me back to a healthy and happy life
Christy C
4/4/2023DR.Ratnaja Katneni is incredible. Not only has she taken great care of my heath, but also she is lovely to speak with at every appointment, it's rare to find a doctor that combines such personal touch and care for patients as a person with outstanding quality of medical care. I highly recommend becoming her patient!.
1/19/2023Dr. Katneni is kind, compassionate and genuinely cares about her patients. You can expect her full attention and a thorough examination. She is an internist that specializes in nephrology (kidneys) and hypertension (high blood pressure). Her office is small and cozy and there is always ample parking available. The office staff is friendly and attentive. Whether you are looking for a primary care physician, a kidney specialist, or even just a second opinion, you can't go wrong here. Dr. Katneni is accepting new patients. Do yourself a favor and start here.
Kimberly C.12/18/22
Dr Katneni has made me feel so incredibly comfortable and well taken care of. I was in awe of how she and her office helped me navigate getting bloodwork and new insurance. They guided me every step of the way and i am certain i am in the best of hands with Dr K as my doctor!
Daniil K. 7/29/22
She's really good and accessible quite easily. I was able to make a next day appointment with her just before she was to close. She's also great at human relationships and extremely friendly. Highly recommend
HEALTHGRADES:
https://www.healthgrades.com/physician/dr-ratnaja-katneni-277qv
SHARECARE:
Education and Support
We believe that education and support are key to managing kidney disease. That's why we offer a range of resources, including support groups, educational materials, and one-on-one counseling, to help our patients and their families understand and cope with the challenges of kidney disease.
Meet Our Experts
Our team of nephrologists are experts in the field of kidney care, with years of experience and training. Get to know our team and learn more about their areas of expertise.
Patient Stories
Hear from our patients about their experiences at Ratnaja Katneni MD Nephrology. From diagnosis to treatment and beyond, our patients share their stories and offer hope and encouragement to others.
Contact Us
If you have questions or would like to schedule an appointment, please get in touch. Our team is here to help you manage your kidney disease and improve your quality of life.
ORANGE COUNTY KIDNEY DOCTOR SERVING NEWPORT BEACH KIDNEY PAT
LOCATED IN NEWPORT BEACH
WE SERVE OUR KIDNEY PATIENTS IN ORANGE COUNTY--NEWPORT BEACH, NEWPORT COAST, LAGUNA BEACH, SAN CLEMENTE, LAGUNA NIGUEL, LAKE FOREST, MISSION VIEJO, HUNTINGTON BEACH, IRVINE, TUSTIN, SANTA ANA, ANAHEIM, ANAHEIM HILLS Kidney doctor Dialysis Nephrologist