ducis now Carbon Health

Carbon Financial District Primary Care

Primary Care In-Clinic and Video Appointments

55 Pacific Ave, San Francisco 94111 CA
55 Pacific Ave,San Francisco94111CA
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Insurance accepted
  • Anthem Blue Cross
  • Aetna
  • Anthem
  • Blue Shield CA
  • Hill Physicians
  • United Healthcare
Carbon's doctors are your first point of contact and will guide you throughout your care. Our Primary Care team includes board-certified and experienced doctors for the whole family, and our growing nursing team.
Our Healthcare Team
Elizabeth McKoy, FNP
Family Nurse Practitioner
Elizabeth McKoy joins Carbon as a Family Nurse Practitioner. She believes successful care depends on collaboration and trust between provider and patient, and is excited about the role of technology in more personalized care. Since receiving her Masters and Nurse Practitioner degrees from the University of Pennsylvania, she has worked in primary care, weight management, drug rehabilitation, and student health.
Linda Dubins, MD
Internal Medicine
Dr. Dubins comes to Carbon with more than 20 years of experience at Kaiser Permanente and at her private practice in Berkeley, CA. She brings a breadth of experience in primary care, as well as routine dermatology, office gynecology, and orthopedics.
Jenny Choo, NP
Nurse Pracitioner
My goal in the field of nursing and medicine is to optimize health through maintenance care and treat patients through routine life events such as annual physical checkups as well as through unexpected health conditions. I am a board-certified acute care nurse practitioner and have also completed specialized training in evaluation and treatment of infectious diseases, particularly HPV-related conditions of the anus. I am actively involved in research studies and professional societies with the goal of improving health outcomes for my patients. I am an experienced nurse practitioner in managing both acute and chronic medical conditions, including diabetes, asthma, high blood pressure, cardiac care, HIV care, anal cancer screening (high resolution anoscopy), HIV PrEP, inflammatory bowel diseases, PRP joint injections, sphenopalatine block as well as having 20+ years of expertise as a registered nurse in intensive care, critical cardiac care and held a teaching position at UCSF, Master Entry in Nursing Program.
Sonia Sadarangani, MD
Internal Medicine
Dr. Sadarangani comes to Carbon with several years of experience at 2 large medical groups in the Bay Area. She has special interests in preventive care, geriatrics, women's health, and management of chronic diseases. She is excited about new opportunities to integrate technology in her practice of medicine.
Greg Burrell, MD
Internal Medicine
Dr. Burrell is Carbon’s founding physician and Director of Medicine. He takes a holistic approach to care, with an emphasis on making it easier for patients to maintain a healthy lifestyle. He is especially interested in chronic illness management. Dr. Burrell also holds an appointment as Assistant Professor of Clinical Medicine at UCSF.
Hours open
Open daily from09:00 AMto06:00 PM
Book an Appointment
Tue, Sep 18th (Today)
Accepted Payment Methods
  • PPO
  • HMO
  • Medicare
  • Self-Pay
Clinic Services
  • videoVideo Appointments
  • emergencyChronic Disease Management
  • prescriptionsPrescription Delivery Option
  • fluVaccineVaccination Administration
  • creditAccepts Direct Pay
Next appointments (today)
  • 4:00 pm
  • 4:30 pm
  • 5:00 pm