Board Certification

  • American Board of Family Medicine 2020

Areas of Expertise

  • Mental Health: Depression, Anxiety, Bipolar, ADHD, Addiction
  • Pediatrics
  • Women’s Health
  • Adult preventative medicine


Internship & Residency

Centra Medical Group – Lynchburg Family Medicine Residency
Family Medicine
Lynchburg, VA

Medical School

St. George’s University School of Medicine
Doctorate of Medicine
Grenada, West Indies

Undergraduate School

University of Virginia
Bachelor of Arts in Biology
Charlottesville, VA

Professional Associations

American Academy of Family Physicians
Lynchburg Academy of Medicine


  1. “Combination Targeted Therapy with Sorafenib and Bevacizumab Results in Enhanced Toxicity and Antitumor Activity” NS Azad, EM Posadas, VE Kwitkowski, SM Steinberg, L Jain, CM. Annunziata, L Minasian, G Sarosy, HL Kotz, EC. Kohn et al (Acknowledgement S Tiwari) Journal of Clinical Oncology 2008 26:22, 3709-3714
  2. “Hand-Foot Skin Reaction Increases with Cumulative Sorafenib Dose and with Combination Anti-Vascular Endothelial Growth Factor Therapy” NS Azad, JB Aragon-Ching, EC Kohn, HH Kong, et al (Acknowledgement S Tiwari) Clin Cancer Res February 15 2009 (15) (4) 1411-1416
  3.  “Effects of Volatile Anesthetics on the Direct and Indirect Protein Kinase C-Mediated Enhancement of α1E-Type Ca2+Current in Xenopus Oocytes” GL Kamatchi, SN Tiwari, ME Durieux, C Lynch, Journal of Pharmacology and Experimental Therapeutics May 1, 2000 293 (2) 360-369

Personal Interests

Dr. Tiwari likes fostering dogs, hiking/camping/trekking, playing Ultimate Frisbee, and traveling.