Welcome to the Dermatology Institute, a unique, comprehensive and bilingual dermatologic practice in San Diego led by Board Certified Dermatologists, Dr. Peter Rullan and daughter Dr. Jennifer Rullan. This partnership delivers time-proven procedures with cutting-edge techniques for the diagnosis and treatment of skin, hair and nail conditions. In 2016 we were honored to have board certified Physician Assistant, Jennifer Piper Trimai, join our practice to help in surgical repairs and common dermatology practice. This laser, medical, cosmetic and surgical practice works in a very supportive and complementary manner. We are dedicated to the health and beauty of your skin, so you can look and feel your best.

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Dr. Peter Rullan

Dr. Peter Rullan has been in private practice in Chula Vista since 1983. He is married and has four children. He was born in San Juan, Puerto Rico. His father’s family is French-Spanish from Majorca, and his mother’s is Ukrainian-Polish from New York. He is one of 20 physicians in his family over the last four generations.

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Dr. Jennifer Rullan

Dr. Jennifer Rullan, daughter of Dr. Peter Rullan, is a Board Certified Dermatologist. She was born in Anaheim, California and raised in San Diego where she attended Bonita Vista High School. She earned her B.S. in Psychobiology from the University of California, Los Angeles (UCLA), and her M.D. from the Ponce School of Medicine (fully-accredited by the ACGME).

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Jennifer Piper Trimai, PA

Board certified Physician Assistant, Born in Michigan, came to California in 2015 to practice dermatology. She earned Bachelors of Biology at Oakland University in Michigan and her Master’s degree in Physician Assistant studies at Chatham University in Pittsburgh, PA. She has worked 4 years in family practice and urgent care where she acquired a broad experience in general medicine.

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Dr. Jacqueline Mckesey

Jackie McKesey, MD MS is a is a received her Medical Degree from Georgetown University, where she also earned her Master’s Degree in Physiology and Biophysics. At Georgetown, she received numerous academic awards and earned the prestigious title of Valedictorian. Dr. McKesey grew up in Washington, DC, and also has family roots in Belize and Los Angeles. Her love of medicine and physiology was born as an undergraduate at UCLA (Go Bruins!).

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Elizabeth Schaut, MPAS, PA-C

Elizabeth Schaut, MPAS, PA-C, was born and raised in southeastern Wisconsin where she graduated at the top of her high school class as valedictorian. She earned her Bachelor of Science in Psychology and Master of Physician Assistant Studies degrees from the University of Wisconsin-Madison. She began her career in the highly desirable field of dermatology immediately upon graduating in 2014. She is board certified by the National Commission on Certification of Physician Assistants and is also a Diplomate Fellow of the Society of Dermatology Physician Assistants by completing their premier training program in the field of dermatology. Elizabeth moved from Wisconsin to San Diego in 2017 after falling in love with the city while visiting for a dermatology conference. She enjoys providing exceptional, compassionate care to her local community as well as volunteering abroad. She has provided medical care to underprivileged neighborhoods in Belize through the organization Mission H.E.L.P, participated in complimentary skin cancer screenings throughout the community, and has overseen teams of medical students in the medical tent of several IRONMAN competitions. To stay connected to her Wisconsin roots, she is chair of the women's group of the UW-Madison San Diego chapter. Elizabeth specializes in all aspects of general dermatology, including skin cancer screenings and management, eczema, psoriasis, rosacea, vitiligo, nail disorders, hair loss, warts, actinic keratoses, hidradenitis suppurativa, keloids, and more. She is especially passionate about treating acne. Elizabeth truly appreciates a team-based approach to medicine. Prior to earning her degree as a physician assistant, she worked for three years as a certified nursing assistant and medical assistant, so she recognizes the importance and value of all members of a care team. In her free time, she enjoys traveling, hiking, and spending time with her family, fiancé, and shih poo, Nivea.

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Mission Statement

~ Show honor in all we do & help restore skin to reflect inner beauty ~


Vision of uncompromising excellence in dermatology by commitment to:
  • ~ HONOR one another (both patients & coworkers) ~
  • ~ Earn the trust & give respect to all our patients, colleagues, & our community ~
  • ~ The highest quality of healthcare ~

What Our Patients Say

Dr. Rullan is seriously such a kind, caring derm. His whole staff is amazing! I’m an out of state patient & I will be flying down to Chula Vista a few more times for more treatments. Thank you Dermatology Institute- you guys seriously rock!!

Leslie S.

Very professional, caring physicians, patient and great work!

Angelica S.

Dr. Rullan has been my Dermatologist for 30+ years. He is the best. Always up on the latest procedures in his field. Not only that he is caring and professional and takes time to listen to your concerns. Whether it's a cosmetic procedure or a cancerous lesion, you have found your Dr.

Diane L.

Our Services

Chula Vista Office

Phone: (619) 426-9600
Fax: (619) 426-4112

256 Landis Ave, Suite 300
Chula Vista, CA 91910

Coronado Office

Phone: (619) 426-9600
Fax: (619) 426-4112

1117 10th Street
Coronado, CA 92118

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