Cardiologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Chiropractor providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dentist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dermatologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Family Physician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
OB-GYN providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Ophthalmologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Orthopedic Surgeon providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Pediatrician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Physical Therapist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Podiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Psychiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Donald Hastie, BC-FNP, is a highly experienced family physician at Genesis Surgery Center, with locations in Santa Ana and Foothill Ranch, California. With an impressive career spanning 25 years, Dr. Hastie has dedicated his life to providing exceptional medical care to his patients.
Dr. Hastie completed his undergraduate studies at Brigham Young University in Provo, Utah, in 1976. He then pursued further education at the University of Phoenix in Arizona, earning degrees in 1985 and 1989. His commitment to excellence in healthcare led him to the University of Utah in Salt Lake City, where he graduated in 1999.
Patients consistently praise Dr. Hastie for his extensive medical knowledge and compassionate approach. His blend of expertise and empathy makes him a trusted and beloved physician in his community. Whether you're seeking routine family care or specialized treatment, Dr. Hastie is committed to ensuring the well-being of his patients at Genesis Surgery Center in Santa Ana and Foothill Ranch, California.
Y.H. Salem, MD, FACS, runs a state-of-the-art medical practice specializing in vascular surgery, acid reflux surgery, and general surgery, at his offices in Huntington Beach, Foothill Ranch, and Anaheim, California.
With over 20 years of professional experience under his belt, he leads a friendly staff and employs cutting-edge technology to provide cosmetic and health benefits to patients dealing with varicose veins and spider veins stemming from a variety of causes.
At the practice’s warm, welcoming offices, they provide a host of innovative treatments for vascular disease, including ultrasound-guided procedures, injections, and laser treatments. Dr. Salem always takes considerable effort to minimize any scarring following medical procedures and maintains constant monitoring to evaluate the progress of his patients through recovery. They’re also highly skilled when it comes to providing surgical treatment for many other conditions, such as intestinal obstructions, lipomas, gallstones, and appendicitis.
One of the central tenets of Dr. Salem’s care is spending as much time as possible with each patient to develop individualized treatment plans and to allow time for addressing questions and concerns. Patient education is also essential and foundational to the practice’s overall approach to care, as Dr. Salem and the staff help each patient understand everything about their condition and treatment options.
If you’d like to schedule an appointment with Dr. Salem to learn more about the practice and what it can offer you, call or use the online booking tool today.
Steven Chen, MD, is a fellowship-trained oncologist surgeon who specializes in breast, endocrine, and melanoma surgery. Today, he is proud to work with the rest of the OasisMD team to help patients recover from the effects of cancer at OasisMD in Encinitas, San Diego, and Temecula, California.
Dr. Chen completed both his undergraduate and medical degree at the University of Michigan in Ann Arbor, Michigan. He later performed his general surgery residency and critical care fellowship at the University of Michigan before moving to Los Angeles and completing a surgical oncology fellowship at the John Wayne Cancer Institute in Santa Monica, California.
Dr. Chen then joined the City of Hope, serving as the associate director of the Surgical Oncology Training Program. During his tenure there, Dr. Chen worked to train the next generation of surgical oncologists and served as the director of surgical oncology research. Dr. Chen also served as an associate professor of surgery.
Throughout his career, Dr. Chen has also served as the chief of breast surgery and the chair of the Melanoma Tumor Board at the University of California, Davis Medical Center in Sacramento, California. His leadership ability led him to become a director of the American Society of Breast Surgeons and to assist in accrediting breast oncology training programs for the Society of Surgical Oncology.
Dr. Chen has also held leadership positions in the American College of Surgeons, the American Medical Association, and the Association for Academic Surgery. A highly accomplished author, he has contributed to over 50 peer-reviewed medical publications, and he is often invited to deliver lectures all over the world.
At OasisMD, Dr. Chen performs a variety of breast, thyroid, parathyroid, and melanoma procedures. He offers a wide range of oncology surgeries, including lumpectomy, mastectomy, and biopsy. Dr. Chen looks forward to continuing his work with cancer patients in the California area.
Trevan Fischer, MD, FACS, specializes in complex general surgical oncology and is certified by the American Board of Surgery. Dr. Fischer is an experienced surgeon who offers patients in Santa Monica, Los Angeles and Orange, California, the latest surgical techniques to help in the battle against cancer. His thorough understanding of the nature of cancer allows him to perform complex surgeries that help him diagnose and treat a number of conditions, including melanoma, other skin cancers, and soft tissue sarcomas.
Outside of his practice, Dr. Fischer continually strives to stay on top of the latest techniques in treating cancer, and he is actively involved with innovative clinical trials at The Angeles Clinic and Research Institute, a Cedars-Sinai affiliate. He also involved in continuing training the next generation of surgical oncologist as faculty member of Cedars Complex General Surgical Oncology Fellowship program. Cedars-Sinai is consistently ranked among the nation’s top hospitals, recognized for pioneering research, advanced technology, and world-class patient care—providing an unparalleled environment for cancer innovation and collaboration.
Dr. Fischer began his medical career at the University of Oklahoma in Oklahoma City, where he earned his medical degree in 2008. He completed his general surgery residency at the University of Florida in Gainesville in 2015, serving as chief resident from 2014-2015. In 2015, Dr. Fischer became a fellow at the John Wayne Cancer Institute, where he completed two years of specialized surgical oncology training.
To continue his education, Dr. Fischer is a member of the Society of Surgical Oncology, the American College of Surgeons, and the American Medical Association.
Over the course of his career, Dr. Fischer’s involvement in research and clinical trials has led to numerous articles, papers, and presentations in peer-reviewed publications and at national conferences.
Dr. Fischer is constantly exploring new ways to gain the upper hand on cancer through state-of-the-art surgical techniques and brings this experience to the Southern California area. He also accepts patients across all of Southern California, including Bakersfield, San Luis Obispo and Palm Springs.
Dr. Fischer has continued his practice in Orange County and sees patients at Providence St. Joseph.
“Dr. Fischer is an outstanding doctor. I highly recommend him for so many reasons. He is a respectful, intelligent, kind and an all around great doctor.
I admire his expertise and professionalism. ”
Dr. Trevan Fischer, MD
Surgeon
1000 W La Veta Ave
1st Floor
Orange, CA 92868
5.0(5)
Wendy Ng, MD
Plastic and Reconstructive Surgeon 50.2 mi
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