4.9
235 Ratings with 234 written Reviews

Overview based on verified provider data
Preferred Provider badge recognizes providers that are committed to transparency, responsiveness and great service to patients, and have earned a high patient satisfaction rating.
![]() | ![]() | ![]() | ![]() |
| Johnny Yik Shum, DO | Atul S. Vellappally, DNP, CRNP, FNP-BC | Dr. Sathish Karmegam, MD | Helix Virtual Care |
| Family Medicine | Family Medicine | Family Medicine | Family Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 15 Years of Experience | 5 Years of Experience | 24 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English | Speaks English, Spanish, Tamil, Arabic, Malayalam | |
| Seattle , WA | Philadelphia , PA | Denton , TX | Boca Raton , FL |
| Med School: Nova Southeastern University | Med School: Stanley Medical College | ||
Current Profile | View Profile | View Profile | View Profile |
Johnny Yik Shum holds an active medical license in the state of Washington.
Doctor Of Osteopathy with an active medical license in the state of Washington that expires in 2026.
Completed their residency at Valley Medical Center Family Medicine in 2014 and Valley Medical Center Family Medicine Residency Program in 2014.
Completed their internship at Valley Medical Center in 2012 and Valley Medical CenterResidency Program in 2012.
Graduated from Nova Southeastern University in 2011 and Nova Southeastern University College of Osteopathic Medicine in 2011.
Johnny Yik Shum's NPI number is 1407140056.










Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.