
At BTHealth Bayspring, a team of dedicated health care providers strive to build rich, life-long relationships with patients–starting with quality primary care. The practice offers a comprehensive range of primary care services and treats a variety of conditions, from the common cold to acute illnesses such as COPD, diabetes and heart disease.
The BTHealth Bayspring patient experience is designed to meet the needs of both men and women. This includes educational services and early detection screenings that aim to prevent illness from occurring in the first 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.

Leah F. Tessler, MD
Dr. Leah Tessler is a primary care internist with a special interest and expertise in preventive care. She earned a medical degree at McGill University in Montreal and completed a residency and internship in internal medicine at UCSF Medical Center…
Dinna Getachew, DO
Dr. Dinna Getachew specializes in primary internal medicine care. She is a respectful and articulate communicator who is particularly skillful in handling sensitive medical issues with patients from diverse backgrounds. Dr. Getachew completed an internship and residency in internal medicine…
Sumatt Kamal, MD
Dr. Sumatt Kamal specializes in internal medicine with a particular focus on preventive care. She partners with and educates her patients to help them reach and maintain their optimum health. Dr. KamaI completed a residency at Summa Health Systems in…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.

Jenna Keohane
Nurse Practitioner

Karlee Johnson
Physician Assistant
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.
Specialties
Internal Medicine & Gynecology
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.
Patient Feedback
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