Dermatology - Oceanview Medical

James Weintraub, MD

devtle — Thu, 02 Jul 2026 05:34:50 +0000

Dr. James Weintraub is a board-certified dermatologist with more than four decades of experience providing comprehensive dermatologic care throughout Ventura County. He earned his Bachelor of Science in Chemical Engineering from the University of Pennsylvania before completing his Master of Medical Science at Rutgers Medical School.

Dr. Weintraub completed his dermatology residency at Case Western Reserve University and served as an Assistant Clinical Professor of Dermatology at UCLA School of Medicine. In 1981, he established dermatology practices in Simi Valley and Thousand Oaks/Westlake Village, where he has continued to care for generations of patients with a commitment to personalized, evidence-based treatment.

Throughout his career, Dr. Weintraub has remained actively involved in dermatologic research and clinical education. He has participated in numerous research studies involving psoriasis, atopic dermatitis, acne, antifungal therapies, and herpes zoster in collaboration with leading pharmaceutical organizations. His work has also been published in the British Journal of Dermatology.

Dr. Weintraub is board certified by the American Academy of Dermatology. He has also served as a keynote speaker for multiple national pharmaceutical and dermatology organizations, sharing his expertise on advancements in dermatologic care and treatment.

Today, Dr. Weintraub continues to provide compassionate dermatologic care with a focus on helping patients achieve healthy skin through prevention, education, and individualized treatment plans.

Medical School: Rutgers Medical School
Residency: Case Western Reserve University
Board Certification: Dermatology

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Logan M. Horejsi, PA-C

devtle — Mon, 30 Dec 2024 05:39:37 +0000

Logan M. Horejsi is a dedicated and compassionate Physician Assistant specializing in Dermatology, bringing a wealth of experience and training to her practice. With a strong commitment to patient care, Logan effectively collaborates with patients, physicians, and healthcare professionals to ensure the highest quality of treatment. Her clinical skills encompass diagnosing and managing complex dermatologic conditions, as well as administering a variety of procedures.

Logan holds a Master of Science in Physician Assistant Studies from Wayne State University, where she developed a robust foundation in medical knowledge and clinical practice. Prior to that, she earned a Bachelor of Arts in Biology from Kalamazoo College, and played collegiate volleyball. Throughout her career, Logan has honed her skills as a Dermatology Physician Assistant, consistently staying abreast of the latest advancements in the field. She became a fellow of the Society of Dermatology Physician Associates as well as receiving certification with Derm Bootcamp with Doctor Boswell. She is committed to continuous professional development and often participates in workshops and conferences to enhance her clinical practice.

Besides Dermatology, you can find Logan enjoying a good sunset, traveling in her spare time, cheering on her Detroit Lions and training for her first Ironman. With her unique blend of expertise, compassion, and commitment to excellence, Logan M. Horejsi continues to make a positive impact in the field of dermatology and in the lives of her patients.

Physician Assistant Studies: Wayne State University
Certification: Dermatology Bootcamp with Doctor Boswell

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Melissa Ambrosio, PA-C

Dhaval — Tue, 15 Sep 2020 10:48:22 +0000

Melissa H. Ambrosio, PA-C is a nationally certified Physician Assistant. She grew up in Philadelphia, Pennsylvania. Her undergraduate education was at St. Joseph’s University where she majored in Psychology with a Faith Justice Minor. She earned her Master of Science in Physician Assistant studies at Philadelphia College of Osteopathic Medicine. Her master’s thesis subject was the use of Ipilimumab as an Effective Treatment for Metastatic Melanoma.

Melissa has extensive dermatology and family practice experience. Prior to joining Oceanview Medical Specialists, she practiced dermatology with UCSF in Fresno. During that time, she served as a preceptor to multiple medical students.

Her professional interests include advances in treatment for metastatic melanoma, immunotherapy, global health, cell therapy, and an overall holistic approach to medical care. Melissa is a member of multiple organizations including the California Academy of Physician Assistants and the American Academy of Physician Assistants.

Physician Assistant Studies: Philadelphia College of Osteopathic Medicine
Certification: Physician Assistant National Certification

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Rikk Lynn, MD

ALISON BRADLEY — Thu, 18 May 2017 13:02:36 +0000

Dr. Rikk Lynn is a board-certified Dermatologist. He is a California native who did his undergraduate work at the University of California, Riverside and then attended medical school in Chicago. After earning his medical degree, he completed an Internal Medicine internship at Cedars Sinai in Beverly Hills and his Dermatology training at the University of Illinois Chicago. His interests include acne, psoriasis, eczema, as well as cosmetic, surgical and pediatric dermatology.

In his free time, he also enjoys surfing, golfing, biking, and snowboarding.

Residency: Dermatology, University of Illinois Chicago Hospital, 2007-2010
Medical Education: Rosalind Franklin University of Medicine and Science, the Chicago Medical School
MD, 2006
Professional Memberships: American Academy of Dermatology, CAllDerm

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