Meet our clinicians

Noah S. Marco, M.D.

Jewish Home Chief Medical Officer (CMO)
Dr. Marco is the son of two Holocaust survivors and is a Los Angeles native. He graduated Magna Cum Laude from UCLA in 1980, and received his M.D. from UC Davis School of Medical in 1985. His Internal Medicine internship and residency were performed at Children’s Hospital of San Francisco (now called California Pacific Hospital). He is board certified in Internal Medicine. After completing his residency, he worked in a six-person Internal Medicine group in Sherman Oaks. Dr. Marco left private practice and went to work at Kaiser Permanente in Woodland Hills in 1994. At Kaiser, he held numerous leadership positions including co-chair of the Bioethics and Quality Committees, and president of the medical staff. In addition, he was Clinical Assistant Professor, Department of Family Medicine, at USC School of Medicine. He was selected to be "Internist of the Year" for the Woodland Hills Medical Center in 1999, and "Teacher of the Year" for 2004. He left Kaiser in 2006 to become the Vice President of Medical Affairs of Northridge Hospital Medical Center (NHMC). At NHMC he had numerous leadership responsibilities and served on a wide range of committees, which included Clinical Operations Improvement, Physician Communication, Palliative Care, and the noted Dignity Health Physician Leadership Development Program. While at NHMC, Dr. Marco collaborated with the Jewish Home on "Care Transitions," an award-winning program created by the Jewish Home to reduce unnecessary hospital re-admissions of seniors. A prolific writer and sought-after speaker, Dr. Marco has presented numerous papers and led workshops on a range of medical issues and topics, which include elder care, doctor-patient communication, and physician training. Dr. Marco is married to the daughter of two Holocaust survivors, and has two daughters and a step-daughter. He and his wife volunteer at the Los Angeles Museum of the Holocaust, and he is a life-long fan of the L.A Dodgers.

Rick L. Smith, M.D.

Jewish Home Medical Director
A San Fernando Valley native, Dr. Smith earned his medical degree at Tel Aviv University, Tel Aviv, Israel (1986). He did his internship and residency in Internal Medicine at the State University of New York at Syracuse (1989). He completed a fellowship in Geriatrics at UCLA (1992). Dr. Smith is board certified in Internal Medicine. He has been a Staff Geriatrician at the Jewish Home since 1992 and the Home’s Medical Director since 1994.

Nallini Gnanadesigan, M.D., M.P.H.

Jewish Home Staff Geriatrician
A native of India, Dr. Gnanadesigan attended medical school at Coimbatore Medical College, India (1966-1972). She did her residency in preventive medicine at UCLA/LA County Department of Health Services (1992-1993); UCLA Multi-campus Program in Geriatric Medicine (1995-1996); and Martin Luther King-Drew Medical Center, Los Angeles (1996-1997). Dr. Gnanadesigan is board certified in Preventive Medicine, Internal Medicine, and Geriatric Medicine. She is an Assistant Clinical Professor of Medicine at UCLA in the Division of Geriatrics. She has a special interest in identifying and managing bursitis pain and clinically important drug interactions. Dr. Gnanadesigan is married and has two children.

Hangnga Vu, M.D.

Jewish Home Staff Geriatrician
A native of Vietnam, Dr. Hangnga Vu earned her M.D. degree with honors at The University of Texas Medical Branch at Galveston (2003). She did her residency at Santa Clara Valley Medical Center, San Jose, California (2003-2006). Board certified in Internal Medicine, Dr. Vu joined the Jewish Home in 2006. She plays music and writes poetry in her leisure time.

Rina Iofel, D.O.

Jewish Home Staff Geriatrician
Rina Iofel, D.O., received her medical degree in 2002 from Touro University College of Osteopathic Medicine in Vallejo, California. She furthered her professional development with postdoctoral training in a Family Medicine Residency at Riverside County Regional Medical Center in Moreno Valley. In addition, Dr. Iofel completed a Fellowship at UCLA in Geriatric Medicine and is now board certified in Geriatric Medicine. Dr. Iofel’s past experience includes working at the Veteran’s Administration Community-Based Outpatient clinics and for QueensCare Family outpatient clinic. She is fluent in Russian and can speak basic Spanish. Dr. Iofel is married and has two children, and likes to travel.

Darla Rae Oak, D.N.P., G.N.P. - B.C.

Jewish Home Nurse Practitioner
Dr. Oak earned her Doctorate of Nursing Practice from The George Washington University. She is licensed in California as a Board Certified Geriatric Nurse Practitioner and Registered Nurse. Dr. Oak received her Master of Science from UCLA and her Bachelor’s Degree from Loma Linda University. Prior to the Jewish Home, she spent more than six years at Glendale Adventist Medical Center working in surgical intensive care. Originally from Duluth, Minnesota, Dr. Oak has a wonderful family and son.

Ann Keren-Zvi, R.N., G.N.P.

Jewish Home Nurse Practitioner
Ms. Keren-Zvi received her Master of Science in Nursing, Clinical Nurse Specialist (Pulmonary) from UCLA (1980), and earned her Post Master’s Certificate as a Family Nurse Practitioner from UCLA (1997-1998). With more than 30 years’ experience as a Registered Nurse, she is trained as a wound care specialist and serves as a consultant at the Jewish Home. She is married with two grown children.

Doreen Delgado, MSN, ANP-BC

Jewish Home Nurse Practitioner

Ms. Delgado received her undergraduate degree from California State University, Long Beach and earned her M.S.N. at California Lutheran University. Ms. Delgado originally joined the Jewish Home staff as the Home's first nurse practitioner (1987-1992). Before returning to the Home again in 2015, she gained more than 20 years of experience at the Motion Picture and Television Fund and Facey Medical Group. When she's not at the Home, Ms. Delgado works as a clinical professor at UCLA and as an instructor at California State University, Dominguez Hills. She also enjoys spending time at home with her husband and their many critter companions - four cats, one dog, and several koi fish.

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