Niraj Karki

Niraj Karki MD

Specialties:

Infectious Disease and Internal Medicine
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4.8 / 5 (based on 105 Reviews) View 24 Comments
  • Group

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562.904.5000 ext. 25315

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Niraj Karki MD is committed to providing excellent care to his patients, especially in the form of clear and detailed communication with both patients and their families alike. His detailed oriented personality and ingrained passion for medicine inspired his special interest for infectious diseases, particularly HIV. He earned his medical degree from Kathmandu University, in Nepal, and completed his residency with New York University, Woodhull Medical Center in Brooklyn, New York, where he was elected Best Resident of his class. Dr. Karki also completed a clinical fellowship in Infectious Disease at Baystate Medical Center in Springfield, Massachusetts. Dr. Karki worked as a Hospitalist and Infectious Disease specialist at The Aroostook Medical Center in Maine, and served as Medical Director of their Intensive Care Unit.

Office Information

Hospital/Group Affiliation

PIH Health Downey Hospital

PIH Health Physicians

Profile

Gender

Male

Specialties

  • Infectious Disease
  • Internal Medicine

Education

Medical School

Nepal Medical College

Internship

Woodhull Medical and Mental Health Center (New York)

Residency

Woodhull Medical and Mental Health Center (New York)

Fellowship

Baystate Medical Center (Massachusetts)

Board Certifications

  • Infectious Disease

Patient Reviews

June 18, 2026
Nice, and friend staff, and do take the time to call you back after leaving a message. Thank you.
June 18, 2026
I think Dr. Karki is the best doctor at PIH. You really need to have more doctors like him. The quality of his care is exceptional.
June 18, 2026
I waited 2 1/2 hours to get my blood drawn because your office had only one person drawing labs due to the second person not able to be there. I understand being alone is stressful but having an attitude and being rude is not except-able. PIH is a huge company and shouldn't have only one person for a busy clinic.
June 18, 2026
Dr. Karki is so caring and knowledgeable he listen to all my questions and got honest answers. He's a great doctor and an amazing human being. I would definitely recommend him to my family and friends.
June 15, 2026
I had to get blood drawn on 6/15/2026 and the nurse (name removed) her disposition was horrible, if she was my first nurse with PIH I would never come back I have been with PIH for years and never have I experienced that kind of rudeness, when I ask her are you having a bad day she bluntly replied yes, I said you have never been like this, her reply was I'm not talking to you and my reply you will talk to someone about today. If she can't work to the standard that she's trained to do she shouldn't be there. I have been in treatment for eight years with cancer and have been in the best care of my life with PIH, when I left yesterday my blood pressure was up and she made me feels has if I was nothing, cancer doesn't discriminate, it attacks anyone from new born babies to 80 and 90 year elderly. I hope someone speaks to her and gets an understanding what she was going through, she chose to come to work and operate in a way that's nothing PIH stands for.
June 04, 2026
Dr Karki was professional and explained in detail Great bed side manner and was very kind and understanding.
June 01, 2026
They were very kind and attentive.
May 21, 2026
Dr. Karki and his assistant Dr. (name removed) were extremely kind with me
May 05, 2026
The Dr and office staff were great. The office location and parking are horrible.
April 22, 2026
He was very informative, and answered all my questions and concerns. Above and beyond!
March 26, 2026
The front office staff can be off putting but the nurse and the doctor are amazing.
March 24, 2026
The doctor was very kind and listened to all my questions. I think he was very understanding of my situation and made me feel good, like he was listening and paying attention. I think he did an excellent job with me, and I would definitely recommend him to anyone looking for this service. Thank you so much.
March 24, 2026
Dr. Karki makes me feel like I'm his only patient, like his best patient. He sits down, he's interested in what I have to say, and he always helps me problem solve. I've never experienced a doctor like this in all of my years of receiving healthcare.
March 10, 2026
This is all good, but don't waste my time with a phone call and an email.
January 14, 2026
Dr. Karki was able to not just show me why I should continue taking certain medication, but was able to recommend me to the appropriate specialist to find the actual cause of certain headaches that I was receiving. And I'm just so grateful that he took the time to listen and to understand my needs to get me to the appropriate place to get the results that I have today. Thank you.
January 13, 2026
Dr. Karki was very patient about answering my questions and concerns. He was very clear and very kind and I liked it a lot.
December 16, 2025
Dr. Karki and his staff were great! I loved the personal attentiveness I received from both doctor and his staff. I was so relieved to have my problems explained to me in a manner I could completely relate to and understand...I had nothing but a fantastic experience!
December 02, 2025
Doctor was great!
November 06, 2025
Dr. Karki was very professional, with a lot of information, and he listened very carefully. So he was very, very professional. Thank you.
September 26, 2025
Dr. Karki explains things to you almost like an alien intern so you can understand everything he's saying. He's a very good communicator and I would recommend him to anybody.
September 26, 2025
Good.
September 08, 2025
absolute confidence in Dr. Karki and trust his abilities and could not ask for a better
August 25, 2025
The only problem I had was when I was put in the room, the doctor didn't know I was in there. I had to go open the door, and they didn't even know. The doctor said, oh, nobody told me that you were in there. So it was mainly his assistant that was the issue for me. She put me in the room, and he didn't know about it. And he apologized, and he was a great doctor. I feel like I don't want to go back because of the treatment that has been provided. Thank you.
August 25, 2025
Dr. Karki listened to my concerns, frustrations and Dr. Karki spoke of different options available to my care. I was at ease, comfortable and my questions were answered. I made a next day Appt. For a voiding Ultrasound and I am so Happy with PIH Hospitals, and Radiology and surgical Departments. Thank you for the much needed information Dr. Karki; I feel like there is hope for my situation. I am very Pleased so far.
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