Northbay Health Primary Care – Green Valley Crossing brings compassionate, expert primary care services to your neighborhood.
Our primary care team is the central resource for all of your healthcare needs. Northbay Health is here when you’re injured, sick or facing a chronic health condition, and our preventive services help you stay healthy for the long term.
At Northbay Health’s Green Valley Crossing primary care location, we offer a wide range of medical services for patients of all ages, including:
- Care for minor illnesses and injuries, such as viruses, sprains, rashes and infections
- Preventive care, such as annual wellness visits and health screenings
- Ongoing care for chronic conditions like hypertension, diabetes and asthma
- Vaccinations for children and adults
- Procedures, such as injections and wound dressings
- Physicals for sports, work and camp participation
- An on-site lab and imaging services
If your optimal treatment plan includes the input of specialized experts, we will collaborate with our specialty providers throughout the extensive Northbay network to coordinate your care.
Meet the Green Valley Crossing primary care team
We know your health is your top priority, but your health is our priority too. Our providers deliver expert specialization, collaboration and customized treatment plans.
Mark Brown, FNP-C Accepted Health Plans Advanced Health Practitioner, Primary Care
Mark R. Brown, FNP-C, is a Family Nurse Practitioner with more than 20 years of experience in emergency medicine, hospital leadership, and primary care. He believes great care starts with listening and that every patient’s story matters. Mark is committed to creating a welcoming environment where patients feel heard, supported, and comfortable asking questions. He provides clear, practical guidance and works with each patient to develop a care plan that fits their needs and goals—whether addressing a new concern, managing a chronic condition, or staying healthy.
Noor Sandhu, MD Accepted Health Plans Family Medicine, Primary Care
Dr. Sandhu will start seeing patients mid-October.
Dr. Noor Kaur Sandhu is a compassionate family medicine physician who believes great care starts with listening. She enjoys building lasting relationships with patients and caring for people at every stage of life. Her clinical interests include women’s health, preventive care and chronic disease management. Patients appreciate her approachable, attentive style and her commitment to helping them feel heard, informed and confident in their care.
What Sets Our Green Valley Crossing Location Apart?
Northbay Health’s Green Valley Crossing location combines the expertise of a comprehensive health system with personalized care, right in your Fairfield neighborhood.
Our care team is interested in learning about your unique health goals, conditions and preferences. This helps us develop a customized care plan, directly in partnership with you.
At Northbay Health, we’ll help you take charge of your health for the rest of your life, not just when you’re sitting in the exam room.
Meet your new primary care provider at Green Valley Crosssing
Convenient care without the commute. Most health insurances accepted.

