Our Office Staff
The best office staff there is!
Diane Guerrero, R.N.P. (Women's Health Nurse Practitioner) Diane is married to Donald, and they have 2 daughters, Dawn and Dena (they like the letter D). She has a pet Akita dog named Kai. Her personal interests include arts and crafts, gardening, she’s especially proud of her more than 100 plumeria plants and she loves shopping at Michael’s and Home Shopping Network. | ||
Marina Jick, B.S., R.N., Licensed Aesthetician Marina’s offerings include Laser and IPL Hair Removal, Botox® Cosmetic, Juvederm® Dermal Fillers, Photo Rejuvenation (PhotoFacials, OmniLux® Phototherapy), Adult and Teen Skin care (European Spa Facials, Designer Peels, MicroDermabrasion, Dermaplaning), Massage Therapy and Spider Vein Removal. Marina's Oasis also carries professional skin care lines: SkinCeuticals/BioMedic®, Jan Marini® Skin Research, La Roche-Posay®, Kinerase, Vivite®, Clarisonic®, Opal®, Latisse®. Marina will meet with you for a complimentary consultation to develop a personalized program to closely suit your physical, emotional and financial needs. She can be reached at 626.MY OASIS (626.696.2747). | ||
Celina Casimiro, Office Manager Although her experience in healthcare is not clinical, Celina enjoys being part of the process. She likes assisting patients with potential insurance questions or payment arrangements and she also enjoy working in a team environment and helping to deliver the best customer service to all patients. Celina enjoys spending time with her first and only pet - a Jack Russell Terrier by the name of Rikki, and if time allows, she enjoys reading mystery novels. | ||
| Rachel Hansen, RDMS, Ultrasound Technologist Rachel knows the buttons on our ultrasound machine like a concert pianist knows the keys of a piano! Rachel is married and has 3 stepchildren and a new step-grandchild! Rachel also creates custom hula hoops and studies hoop dancing (she has even done a hula hoop FIRE DANCE!) | |
Griscelda Lopez, Receptionist Griscelda is married to Pablo and they have two sons, Daniel and Diego. In her free time, Griscelda likes to be with her extended family, going to the beach or on picnics. This can be quite a large group because Griscelda has 10 sisters and 4 brothers! | ||
Claudia Delgado, Medical Assistant/Back Office Supervisor Claudia enjoys the bonds that she has been forming with patients over the years. She loves being there for the whole process - seeing the joy when a patient becomes pregnant, all the way through the pregnancy’s ups and downs, to the proud visits of new moms, showcasing their adorable newborns! Claudia enjoys outdoor recreation, especially fishing, jet skiing, and other water sports. Claudia has a pet dog, part pit bull, named Kahlua, and she loves anything to do with dolphins (the sea mammal, not the football team). | ||
| Liz Ceballos, Receptionist and Billing Assistant Liz has a young son, Luis and a daughter, Leanna. She loves her vacations because she visits her large family in El Paso Texas where she has 24 aunts and uncles (yes, 24) and too many cousins to count! | |
| Johanna Quiroz, Medical Assistant | |
| Dena Guerrero, Office Assistant Dena recently also spent a year performing as a Polynesian dancer at Tokyo Disneyland. Dena is also enrolled at Cal State Fullerton, majoring in Child Development. She is a full-time student and still works hard part-time with us! | |
| Maral Nigoghossian - Back Office Assistant | |
Christine Robinson, Receptionist Christine has a brother who works in Washington DC. She is also a dancer, and has studied jazz, ballet and tap dancing since she was young. We’re very happy to have Christine working here with us. | ||









