
- Mount Sinai Doctors
- Treats Adults
- Accepting New Patients
Niraj Kothari, MD
Nephrology
About Me
Niraj Kothari, MD, is an Associate Professor in the Department of Medicine, Division of Nephrology at the Icahn School of Medicine at Mount Sinai. He is board certified in Internal Medicine and Nephrology, and is a member of the American Society of Nephrology and the National Kidney Foundation.
Dr. Kothari is a graduate of the University of Missouri—Kansas City School of Medicine and completed residency training in Internal Medicine at Saint Louis University. Following this, he completed his clinical fellowship in Nephrology at Duke. He cares for patients with a wide spectrum of kidney diseases, and his clinical interests include acute kidney injury, chronic kidney disease, and dialysis care. He is interested in the mitigation of healthcare disparities and has been a lecturer and invited panelist on this topic.
Prior to joining Mount Sinai, he was an Assistant Professor at the Virginia Commonwealth University School of Medicine, where he served as Ambulatory Medical Director for the Nephrology Division and Co-Director of the Renal Course for second year medical students, winning the Best Teacher award for his dedication to education. He remains involved in the education of medical students, residents, and fellows rotating on the Nephrology services at The Mount Sinai Hospital, and serves as Medical Director of the inpatient dialysis unit at Mount Sinai Queens and the Mount Sinai Kidney Center – East River Plaza, one of the largest outpatient dialysis units in Manhattan.
Dr. Kothari sees patients hospitalized at The Mount Sinai Hospital. His clinic is located at Mount Sinai Faculty Practice Associates, and he cares for dialysis patients at the Mount Sinai Kidney Center — East River Plaza. In his free time, he enjoys cooking, playing tennis, and watching Chiefs football.
Language
English
Position
ASSOCIATE PROFESSOR | Medicine, Nephrology
Hospital Affiliations
- Mount Sinai Morningside
- Mount Sinai Beth Israel
- Mount Sinai Brooklyn
- Mount Sinai Queens
- The Mount Sinai Hospital
- Mount Sinai West
Clinical Focus
- Acute Kidney Injury
- Acute Renal Failure
- Adrenal Hypertension
- Alkalosis
- Chronic Kidney Disease
- Chronic Renal Failure
- Congenital Kidney Disease
- Diabetic Kidney Disease
- Dialysis
- End Stage Renal Disease
- Hematuria
- Hydronephrosis
- Hypokalemia
- Hyponatremia
- Kidney Disease (Acute Or Chronic)
- Kidney Failure
- Kidney Infection
- Kidney Stones
- Kidney Stones-Adult
- Kidney Ultrasound
- Membranous Nephropathy
- Nephritis
- Nephrotic Syndrome
- Peritoneal Dialysis
- Polycystic Kidney Disease
- Renal Ultrasound
Education
MD, University of Missouri School of Medicine-Kansas City
Internship, Internal Medicine
St. Louis University Hospital
Residency, Internal Medicine
St. Louis University Hospital
Fellowship, Nephrology
Duke Graduate Medical Education
Certifications
American Board of Internal Medicine
Insurance Information
Accepted insurance may vary by the doctor’s office location. Please contact the office directly to obtain the most up-to-date insurance information.
- 1199 SEIU
- 32BJ Health Fund
- AETNA - Commercial
- AETNA - Medicare
- Amidacare Medicaid
- Anthem/Empire Blue Cross Blue Shield - Commercial
- Anthem/Empire Blue Cross Blue Shield - HealthPlus Medicaid
- CIGNA Healthcare
- Centivo
- Elderplan
- EmblemHealth - GHI-PPO
- EmblemHealth - HIP
- EmblemHealth - HIP-Medicaid
- EmblemHealth - HIP-Medicare
- Fidelis Health Care
- HealthFirst Medicaid
- HealthFirst Medicare
- Horizon NJ
- Magnacare-Health Care
- Metroplus
- Multiplan PHCS
- Oscar
- Oxford - Freedom and Liberty
- United Health Care - Commercial
- United Health Care - Empire Plan
- United Health Care - Oxford Care
- United Health Care - Top Tier
- VNSNY Choice Medicare
- VNSNY Select Health Medicaid
- VillageCareMax
Physicians who provide services at hospitals and facilities in the Mount Sinai Health System might not participate in the same health plans as those Mount Sinai hospitals and facilities (even if the physicians are employed or contracted by those hospitals or facilities).
Information regarding insurance participation and billing by this physician may be found on this page, and can also be obtained by contacting this provider directly. Because physicians insurance participation can change, the insurance information on this page may not always be up-to-date. Please contact this physician directly to obtain the most up-to-date insurance information.
Insurance and health plan networks that the various Mount Sinai Health System hospitals and facilities participate in can be found on the Mount Sinai Health System website.
Patient Experience Star Ratings and Comments
The Patient Experience Star Rating reflects our patients’ perception of how well their Mount Sinai provider communicated with them during an office visit. The Star Rating is based on patient responses to three questions on a patient experience survey, a standardized questionnaire sent to verified patients and distributed by a third party vendor, Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score.
Good
Dr K was really good with my mother also, she's is hard of hearing and he made sure to still include her in the conversation. Everyone was professional and courteous. Great clinic visit.
Dr. Kothari is very knowledgeable, can break down complex matters into good bite sized patient pieces, and has a great bedside manner. He spent a lot of time with my son and I and I feel we got excellent care.
Industry Relationships
Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device, biotechnology companies, and other outside entities to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their outside financial relationships.
Below are financial relationships with industry reported by Dr. Kothari during 2025 and/or 2026. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.
Consulting or Other Professional Services
Examples include, but are not limited to, committee participation, data safety monitoring board (DSMB) membership- Evidera, Inc.
- The Dedham Group
- HealthCentral, LLC
Mount Sinai’s faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.