Nisha Viswanathan, MD

Nisha Viswanathan, MD

(she/her)
  • Internal Medicine
Average rating: 5.0
 
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:
5.0
79 total ratings | 47 reviews
5.0
September 30, 2025
When a doctor takes time to explain the test results to you better than you're just reading the results it means everything to a patient we can see those numbers high low what does it really mean doctor tell you and she did just that she explained it to me very well I appreciate that from her
5.0
September 25, 2025
Dr. Viswanathan is a really incredible physician. I’m a complex medical patient and I always feel like she leaves enough time for me, that she educates me and we make decisions together, and that all my concerns are taken into account
5.0
September 24, 2025
Excellent!
5.0
September 22, 2025
My doctor responded immediately to my message in the Eye MyChart, and called me at home to see how I was progressing. She was extremely helpful. She asked all detailed questions which helped me explain and helped her diagnose better. I was so relieved at the reply of my doctor and her expert care!
5.0
September 17, 2025
Dr. Viswanathan has been my saving angel after my Long Covid. Thanks to her care I have been able to resume my life. She’s helping me treat all of the sequelae of Covid such as insomnia, high BP, tachycardia and more.