Our Team

Medical Providers

Erik G. Palmer, D.O., Board Certified Family Medicine Physician
Erik G. Palmer, D.O.

Dr. Erik G. Palmer is a Board Certified Family Medicine Physician. He completed two residencies one in family medicine and the other in general surgery. Since 2001, he has served as the medical director of Desert Family Medical Center located in both Palm Springs and Cathedral City. His extensive experience with treating highly complex patients with multi-level and multiple comorbidities has allowed him to be an extremely capable mentor to future physicians and allied health professionals. Dr. Palmer’s belief is that each patient must be diagnosed accurately in order to move forward with an effective treatment plan.

He is a fifth generation Southern Californian committed to delivering excellence in family medicine to his community. His commitment to the future of the medical community in this desert is evidenced by his role as a Clinical Assistant Professor for Loma Linda University School of Medicine since 2006. Dr. Palmer’s objectiveness and passion for quality patient care has led him to serve on various committees at Desert Regional Medical Center which have included: Chairman of the Department of Family Medicine for twelve-years; Chairman of the Patient Safety; Chairman of Allied Health Committee; Member of Peer Review Committee; Member of Graduate Education Committee. His expertise has also had him serve as a Member of the Quality Assurance Committee for Desert Oasis Healthcare.

Dr. Palmer has had extensive experience in hospice care through serving as medical directors for Premier Care Center, Palm Springs Healthcare and Rehabilitation, and Charter Hospice. He believes that the relationship of trust and confidence between a patient and his/her doctor fosters ease in the transitions of life. He has the privilege to serve patients ranging from newborn to age 107 years old.

Education and Training:
B.A. from California State University at Northridge, Northridge, CA
D.O. from Western University of Health Sciences, Pomona, CA
Rotating Internship: St. Barnabas Hospital, Bronx, NY
Surgical Residency: St. Barnabas Hospital, Bronx, NY
Family Medicine Residency: Good Samaritan Hospital Medical Center, West Islip, NY
Board Certified: American Osteopathic Board of Family Medicine (AOBFM)
Fluent in Spanish

Mary K. St. John, MMS, PA-C

Photo and Bio Coming Soon


Kimberley Yang, Ph.D., Executive Director
Kimberley Yang, Ph.D.

Dr. Yang has served as the Executive Director of Desert Family Medical Center since 2001. She oversees the company culture of integrity, transparency and excellence in career development for the team at this organization. Her role entails the management of human resources, public relations, legal, financial, business development, and stewardship of this company. She believes that each person represents Desert Family Medical Center and she fosters a positive and communicative work environment in order for our patients to receive the highest level of medical care and patient service.

B.A. University of California, Davis
M.A. Chapman University
Ph.D. Columbia University
Fellowship, Rockefeller University
Internship, Riverside University Health Systems

Jennifer Vega, Chief Operating Officer
Jennifer Vega

Ms. Vega was born in Palm Springs and raised in Cathedral City. She is a first generation Mexican-American and a 2009 graduate of Cathedral City High School. She earned her Medical Assisting Certificate from Kaplan College and is fluent in both English and Spanish. Her professionalism with detail and sincere care for our patients is part of the backbone of the integrity of our medical offices. She is in charge of the daily operations and the implementation of policies and procedures. Her role at Desert Family Medical Center is integral to the mission and ethics that are expected and upheld at our organization. She has been a team member at our offices since 2010.


DFMC Care Team

Jonathan Avila, Senior Patient Service Associate

Mr. Avila is a native of Indio, California. He graduated from Indio High School and earned his Accounting Certificate from Milan Institute with Top Honors with a 4.0 GPA. He interned for the City of Indio as an Accounts Payable Clerk. Previous to joining our team at Desert Family Medical Center he was working in the hospitality industry. He has embraced a new career challenge in the medical field to excel and contribute with essential medical information management. His calmness and ability to learn various tasks quickly allows our information management to be handled with integrity and accuracy. Aside from his clerical duties he is very apt with patient services with his care and concern to each patient that calls or comes to one of our offices.


Nadine Guerrero, CNA, HHA, Patient Care Associate

Mrs. Guerrero is a Certified Nurse Assistant (CNA). She is a native of Palm Springs and graduated from Cathedral City High School. Her training in the medical field is extensive; hence she completed the Clinical Healthcare Technician program through California Nurses Educational Institute. Mrs. Guerrero is trained in the areas of Certified Nurse Assistant (CNA), Home Health Aide (HHA), Medical Assisting, Phlebotomy, and Patient Care Technician. Her desire to pursue a career in the medical field is based on her belief that when people are in need of medical care they need to be treated with kindness and personal attention can make a difference between a good visit versus a great visit. She feels that Desert Family Medical Center is a place that is cohesive and the team puts patients’ first and she is proud to be part of this dynamic organization. Professionally, she feels she is at a place that allows her to strive to be the best she can be in her chosen field.


Joanna Rosales, Chief Referral Coordinator

Ms. Rosales’ passion for working in the medical field stems from her desire to constantly learn more about others and ever-changing world of medicine. Born in Indio and raised in Cathedral City, she is a graduate of Cathedral City High School. She earned her Dental Assisting Certificate from Kaplan College. Her role at our organization is to serve as the lead for our Palm Springs office. Her positive and outgoing attitude puts people at ease and she is ready to help our patients with care and concern. She is fluent in English and Spanish.


Paola Soria, CCMA, Patient Care Associate

Ms. Soria was raised in the heart of Coachella. A proud Mexican-American, she immigrated from Mexico at a young age and became a naturalized citizen of the United States of America. Paola is a proud graduate of Coachella Valley High School and earned her Administrative Medical Assisting Certificate with a grade point average of 4.0 and perfect attendance. Ms. Soria passed the California Certified Medical Assistant (CCMA) 3-part examination in the Basic, Administrative, and Clinical sections on September 25th, 2017. Her certification makes her in the 1% of medical assistants that are in the league of excellence for there chosen field. She is fluent in English and Spanish. Prior to joining Desert Family Medical Center, she was in the hospitality industry. Her commitment to her new career is based on her desire to have positive interactions with patients and making sure that each patient is given the highest level of medical service she is able for their individual needs. Paola feels that a friendly attitude and her natural inclination to always go above and beyond helps her be the best medical assistant she can be for this organization.


At DFMC, striving to be the best team to care for our patients is our daily goal. Each team member is dedicated to giving each patient the best medical care and service they can deliver. Our patients are our priority.