Home Find a Doctor Johnna Gemelos, DO Back to search results COVID-19 update: If you think you have COVID-19 symptoms or are looking to be tested, please use our free symptom checker. Do not schedule an in-person appointment. Johnna Gemelos, DO Hospital Medicine Internal Medicine 5 patients recommend this provider age-group-adults-color Treats adults Contact 435 H St Chula Vista, CA 91910 Get directions Phone Number 619-862-6673 See More Locations OverviewOffice Locations (1) Expertise Internal Medicine Hospital Affiliations Scripps Mercy Hospital Languages English Board Certifications American Board of Internal Medicine, Internal Medicine, 2016 Medical Education West Virginia University School of Medicine, DO, 2013 Residencies Scripps Mercy Hospital San Diego, Internal Medicine, 2016 435 H St Chula Vista, CA 91910 Get directions Phone Number 619-862-6673 If you see an error or omission on a provider’s profile page, please contact us.