Our Office Staff

The best office staff there is!

		Diane Guerrero, R.N.P. (Women's Health Nurse Practitioner) Diane is our Ob/Gyn Nurse Practitioner. She earned her R.N. degree in 1977 from Los Angeles County (LAC-USC) Nursing School and she has worked in the Ob/Gyn field since 1980. She has been with Dr. Jick since 1989, working as his office nurse. In 1998, Diane became a 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, Dr. Jick’s wife of 26 years, runs Marina’s Oasis, a medical aesthetics boutique located in our office. Marina is a Registered Nurse and a licensed aesthetician. She takes pride in making a difference in her clients’ appearance and the way they feel about themselves. 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 Celina has been working in the medical profession since 1990. She started as a clerk in a Hospital Admitting department, and gradually worked her way up to being the Manager of Admitting, at one point having more than 50 people who reported to her. She recently spent a few years pursuing her dream of running a retail business, but things did not work out and so Celina has come back to what she knows and does so well, working in the medical profession. 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 is a certified ultrasound technologist, having completed the Diagnostic Medical Sonography program at Modern Technology College. She is experienced in obstetrical, gynecological and vascular ultrasound. In 2003, Rachel earned her RDMS (Registered Diagnostic Medical Sonographer) credential from the ARDMS (American Registry of Diagnostic Medical Sonographers®). 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 works as our receptionist and front-office assistant. She loves her job because she enjoys meeting new people and says that the medical profession is very interesting. 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 is an Ob/Gyn back office veteran. She started her career in 1989, and worked with Dr. Jick for many years in the 90's, before Dr. Jick had opened up his current private practice. We welcomed Claudia back when she became available again and now she is our 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 is our receptionist and billing assistant. She answers phones, makes appointments, and helps patients complete their end-of-visit paperwork. Liz is a hard worker and is very dependable. 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 Johanna (pronounced Jo-Anna) is a certified medical assistant with kind and calming bedside manner. Johanna loves her job and enjoys helping to take care of pregnant women. She has a young daughter, Mariah, and Johanna says that she really enjoyed her pregnancy. She loves going to the park with Mariah where they have picnics together.
		Dena Guerrero, Office Assistant Dena is a great asset to our office acting as our back office “behind the scenes go-to girl.” Her duties include inputting information into our EMR system and providing any additional help needed by our office staff. Dena’s mother is Diane, our Nurse Practitioner, who provides Dena with lots of useful teachings. 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 Maral joined us in 2009. She has worked over 10 years as an ob/gyn back office assistant. Maral has experience with electronic medical records, ob and gyn ultrasound, clinical research and all aspects of women’s health. Maral enjoys helping people, is awed by the miracle of pregnancy and the start of a new life. Maral loves to cook … Armenian food, Chinese, Italian, you name it. She also bakes a great vanilla and chocolate marble cake. She spends a lot of time with her family and friends and she has 9 god-children!
		Christine Robinson, Receptionist Christine has recently joined us, having moved here from Maryland where she grew up. She is starting a new life in Pasadena with her new husband. Christine has enjoyed working in the medical profession for more than 7 years because she likes interacting with many people. She really likes the people of Pasadena and of course, loves the weather! 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.