
BTHealth Campus’ providers are internal medicine specialists, physicians apply scientific knowledge and clinical expertise to diagnose and treat adults with a very broad range of health concerns and diseases. ALL specialize in preventing, diagnosing, and treating a wide variety of diseases and other health issues that affect adults. They are experts in health promotion, disease prevention, and the care of problems both simple and complex, acute and chronic.
Our practice expanded in Jan. 2022,with the addition of Drs. Hom, Omachi and Jennifer Chan, PA. Now located in a large, newly renovated space, patients now have access to more exceptional providers all in one place.
Practice physicians
Our physicians are passionate about primary care and treating you as a person, not just a diagnosis. We think about your health comprehensively and partner with you to help you reach and maintain your optimal wellness.

Kris C. Kealey, MD
Dr. Kris Kealey is an internal medicine specialist who earned her medical degree at Stanford University School of Medicine where she also completed a residence in internal medicine. With more than 31 years of experience, Dr. Kealey was inspired to…
Gerald Hom, MD
Gerald Hom, MD, is an internal medicine specialist at BTHealth Campus who is passionate about providing excellent preventive care. He loves developing lasting and trusting relationships with his patients and enjoys taking time at the end of each visit to…
Ann S. Omachi, MD
Internal Medicine Specialist in Daly City, CA who brings over 43 years of experience in the medical field to BTHealth.Do you have health insurance?
Our providers accept most major health plans. Looking to receive care from one of our BTHealth professionals?
Practice providers
Your primary care teams at BTHealth represent a partnership between your physician and many talented and dedicated team members. These individuals join their talents and experience to support and guide you on your health care journey.

Jennifer Chan
Physician Assistant
Jennifer Chan, PA-C was born and raised in San Francisco. She graduated from the Duke Physician Assistant Program in North Carolina and joined Brown and Toland Health in 2021. She is happy to be back in the Bay Area and looks forward to serving the community.

Jessica Kung
Nurse Practitioner
Jessica graduated from the Adult Gerontology Primary Care Nurse Practitioner Program at UCSF. She prioritizes patient education and her goal is to be a provider that is easy to talk to. She is a San Francisco native and is happy to be working at the Campus location in Daly City.

Therese Grenchick
Nurse Practitioner
Location & Contact Information
Our providers and staff are here to answer your questions, listen to your concerns, and help you on every step of your health care journey. Please call or email with any questions you may have.
BTHealth Campus
901 Campus Drive Suites 210 & 214
Daly City, CA 94015
Phone: 650-993-6300
Specialties
Internal Medicine
For Your Visit
To make your experience as pleasant and efficient as possible, we encourage you to plan to arrive at our practice 15 minutes before your appointment time to complete the registration process. If your insurance requires a referral, please be sure to bring it with you to your appointment. Also, please remember to bring your insurance card(s).
The word on the street…
With so many choices in the Bay Area, our patients keep coming back. Here is what some of them are saying about our providers and our practices!
The physicians, registered nurses, and all office staff at BTHealth Berkeley are always kind, patient, professional, and highly competent. I received excellent care and every member of the team was courteous and attentive to my needs.
Patient Feedback
I love the whole experience at BTHealth Geary and have been a satisfied patient for years. Front staff: friendly, helpful, professional. Dr. Karen Khoo and NP Janet Michelson have really felt engaged and protecting of my health and wellness.
Patient Feedback
Everyone I’ve encountered at BTHealth Campus is fantastic. Always polite and organized. Call backs and follow-ups are timely. I’ve never had any issues with that staff. They are fantastic and I’m glad to have them in my life.