Nisha Viswanathan, MD

Nisha Viswanathan, MD

(she/her)
  • Internal Medicine
Average rating: 4.9
 
Santa Monica Internal Medicine |

About

Dr. Nisha Viswanathan is a primary care and extensivist physician who practices in Santa Monica and Westwood. She works with medically complex patients and coordinates their care between the inpatient/hospital setting and the outpatient/clinic setting. She is Co-director of the UCLA Health COVID-19 ambulatory monitoring program and Director of the UCLA Long COVID program. She is a Fellow in the American College of Physicians, and is board certified in internal medicine.

Dr. Viswanathan received her medical degree from the University of Arkansas for Medical Sciences. She then completed her internal medicine residency at Mount Sinai Hospital in New York City. She earlier received her Bachelor of Science degree in biology from the University of Miami.

Dr. Viswanathan is a clinical instructor in the David Geffen School of Medicine at UCLA and is involved in resident education. She also researches gender-based differences in the medical profession, such as barriers that keep women from reaching leadership positions and why female physicians are promoted at a lower rate.

Dr. Viswanathan was raised in Little Rock, Arkansas. She speaks fluent Tamil and conversational Spanish. When not working, she enjoys outdoor activities, such as hiking and swimming, as well as traveling, reading, and hanging out with her husband and fluffy Shih Tzu.

Languages

English, Tamil

Education

Medical Board Certification

Internal Medicine, American Board of Internal Medicine, 2015

Residency

Internal Medicine, Mount Sinai Medical Center, 2015

Degree

MD, University of Arkansas for Medical Sciences, 2012

Recognitions

  • Super Doctors® Southern California Rising Stars, 2023, 2024, 2025

Hospital Affiliations

Ronald Reagan UCLA Medical Center

UCLA Santa Monica Medical Center

Areas of Focus

Research

Publications

  • Factors Associated with Post-Acute Sequelae of SARS-CoV-2 (PASC) After Diagnosis of Symptomatic COVID-19 in the Inpatient and Outpatient Setting in a Diverse Cohort. Link to pubmed.gov

Insurance

  • Aetna
  • Anthem Blue Cross
  • Blue Shield of California
  • Centivo
  • Cigna
  • First Health
  • Health Net of California
  • Interplan (part of HealthSmart)
  • Medicare Advantage
  • MultiPlan
  • UFCM Health System
  • Prime Health Services
  • Private Healthcare Systems (PHCS)
  • TRICARE
  • UnitedHealthcare

The list of health care plans above may not be comprehensive and could change. 
Please contact your benefits coordinator or health insurance company directly to verify coverage.

Visit our health insurance information page for more details.

Recognitions

  • Super Doctors® Southern California Rising Stars, 2023, 2024, 2025

Reviews

Overall Rating:
4.9
70 total ratings | 42 reviews
5.0
July 29, 2025
Always professional, informative, and good vibes
5.0
July 28, 2025
I always have an excellent experience with Dr. Viswanathan. She has helped me so much throughout my journey with Long Covid. She’s kind, caring and very professional.
5.0
July 24, 2025
The news on the doctors were very carefully examined me and explain everything about my blood pressure
5.0
July 21, 2025
Dr. Viswanathan called me immediately after I wrote in my chart how my new medication’s were affecting me and my blood pressure. I had a productive professional help from her immediately. She is excellent and caring and brilliant.
5.0
July 3, 2025
Efficient compassionate