We offer high quality primary care to our members.

At Nivano Health, we offer primary care that fits your needs. Whether you are looking for a referral or just a casual check up we are here for you. Nivano will give you exceptional care where and when you need it. With locations all across Northern California, when you choose Nivano Health, you choose a higher level of caring.

Lorna Adolfo, MD

Internal Medicine

Dr. Adolfo graduated from the University of Santo Tomas Faculty of Medicine and Surgery, Manila, Philippines in 1968. She works at one of our Roseville clinics and specializes in Cardiovascular Disease and Internal Medicine.


1101 Smith Lane
Roseville, CA 95661


Phone (916) 407-2222
Fax (916) 797-0343

Venugopal Bellum, MD

Internal Medicine

Dr. Bellum completed his medical school education at Kakatiya Medical College in Warangal, India. He is board certified with the American Board of Family Medicine. He has been practicing family medicine for over 14 years. Dr. Bellum joined Nivano Health as a founding member and is Nivano’s Chief Medical Officer.


1101 Smith Lane
Roseville, CA 95661


Phone (916) 407-2222
Fax (916) 797-0343

Richard Chun, MD

Internal Medicine

Dr. Chun graduated from Temple University in Philadelphia, Pennsylvania. He went on to Buffalo General Hospital for his Internship and then to Henry Fold Hospital in Detroit, Michigan to complete his Residency. Dr. Chun was is a Board Certified MD who came to us from Sutter Health and was our first Primary Care doctor to start seeing patients in 2014.


1101 Smith Lane
Roseville, CA 95661


Phone (916) 407-2222
Fax (916) 797-0343

Julian Delgado, MD

Family Medicine

Dr. Delgado is a family medicine doctor in Colusa, California. His specialty is family medicine and he treats pediatrics, adults and geriatric patients, and provides prenatal care. He received his medical degree from University of California Davis School of Medicine and has been in practice for more than 20 years.


2967 Davison Court, Suite A
Colusa, CA 95932


Phone (530) 458-8050
Fax (530) 458-2044

Michael Goodman, MD

Family Medicine

Dr. Goodman graduated from Virginia Common University School of Medicine in Richmond, Virginia where he got his Doctor of Medicine. He completed his undergraduate degree from University of North Carolina at Chapel Hill in Chapel Hill, North Carolina. Dr. Goodman comes to Nivano from the North Valley Family Physicians Medical Group in Williams, California. His specialty is family medicine and he treats pediatrics, adults and geriatric patients, and provides prenatal care.


2967 Davison Court, Suite A
Colusa, CA 95932


Phone (530) 458-8050
Fax (530) 458-2044

Hung Hoang, MD

Internal Medicine

Dr. Hoang graduated from the Medical School in Ho Chi Minh City, Vietnam. He works in multiple locations and specializes in Family Medicine as well as General Practice. Dr. Hoang is affiliated with Dignity Health Mercy General Hospital, Dignity Health Sierra Nevada Memorial Hospital, Methodist Hospital Sacramento and Sutter Health Roseville Medical Center.


1101 Smith Lane
Roseville, CA 95661


Phone (916) 407-2222
Fax (916) 797-0343

Sen Jone, MD

Internal Medicine

Dr. Jone graduated Medical School from Kaohsiung Medical College in Taiwan and continued on to complete his internship at Augustana Hospital. Dr. Jone went on to complete his residency at Lincoln VA Hospital in New England. He came to Nivano as General Surgeon from Sutter Health. He is currently working out of Folsom in one of our highly rated clinics.


1710 Prairie City Road, Suite 125
Folsom, CA 95630


Phone (916) 229-6112
Fax (916) 985-4205

Darlene Junk, PA-C

Family Medicine

Darlene graduated from UC Davis from the PA/FNP program. She also has a Bachelor’s degree in Health Science. Darlene has practiced in more than one practice and her main emphasis is in pediatrics. She also treats adults and geriatric patients. She was nominated for Primary Care Physician of the Year for Nivano Health in 2016. She has volunteered for different clinics for sports physicals and updating immunizations.


2967 Davison Court, Suite A
Colusa, CA 95932


Phone (530) 458-8050
Fax (530) 458-2044

Simin Kharazi, MD

Internal Medicine

Dr. Kharazi is a Family Practice Specialist in Folsom, California. She graduated with honors from medical school in 2003 from Isfahan University of Medical Science, Iran. She has more than 14 years of diverse experiences. Dr. Kharazi won Primary Care Physician of the year for Nivano Health in 2016.


1710 Prairie City Road, Suite 125
Folsom, CA 95630


Phone (916) 229-6112
Fax (916) 985-4205

Holly Leeds, MD

Family Practice

Dr. Leeds is a surgeon in Auburn, California and is affiliated with Sutter Auburn Faith Hospital. She received her medical degree from the University of Massachusetts Medical School and has been in practice for more than 20 years. Dr. Leeds did her residency at Episcopal Hospital, PA and her fellowship at Boston University Hospital Massachusetts. She is one of 12 doctors at Sutter Auburn Faith Hospital who specialize in Surgery.


3133 Professional Drive, Suite 18
Auburn, CA 95603


Phone (530) 316-1500
Fax (530) 878-5050

Chelsea Nichols, PA-C

Internal Medicine

Chelsea is a nationally-certified physician assistant. Chelsea received a Bachelor of Science in Biology from Southern Illinois University of Edwardsville. She went on to complete her Master of Science in Physician Assistant Studies from South University-Tampa. After graduating, she volunteered at a family practice clinic for a few months at an Air Force clinic in Texas. She practiced at a gastroenterology clinic in Oahu from 2013 to 2015 and started practicing internal medicine with Nivano in February 2016. Chelsea treats both acute and chronic medical conditions and performs well women exams. Chelsea’s main role at the Roseville Clinic is to provide medical care to patients who need to be seen immediately and cannot wait to see their regular primary care provider.


1101 Smith Lane
Roseville, CA 95661


Phone (916) 407-2222
Fax (916) 797-0343

Krista Taylor, FNP

Family Medicine

Krista graduated with a Bachelors of Science degree in Nursing from the University of Alaska. She obtained a Masters degree with focus on being a Family Nurse Practitioner at the University of Texas. Krista has worked as a Nurse Practitioner in Colusa, California for the past 21 years. Initially she worked for Colusa Regional Medical Center and then joined North Valley Family Physicians where she had worked for the past 17 years. She has enjoyed serving this community for the past 21 years.


2967 Davison Court, Suite A
Colusa, CA 95932


Phone (530) 458-8050
Fax (530) 458-2044

Lynne Wittekind, PA-C

Family Practice

Lynne graduated from Stanford University Medical Center in Palo Alto, California. She went on to work as a Physician Assistant at the Indian Health Center in San Jose, CA. After completing several years at the center she moved on to work for the State of California in the Agnew Development Center. Lynne has more than 25 years experience as a Physician’s Assistant. She specializes in family practice, pediatrics and women’s health. She has extensive knowledge of medical treatment within a managed care organization, including medically indigent and difficult to treat populations.


3133 Professional Drive, Suite 18
Auburn, CA 95603


Phone (530) 316-1500
Fax (530) 878-5050