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Kanagaratnam Sivalingam, MD, FACP, is a skilled internist at First Valley Medical Group in Lancaster, California. He has more than 40 years of experience in treating numerous acute and chronic conditions. Dr. Sivalingam spends time with patients and listens to their concerns, giving them a voice in their treatment.

Dr. Sivalingam earned his medical degree from the University of Ceylon Medical School in Peradeniya, Sri Lanka. He completed his internal medicine training at the Hospital for Joint Diseases in New York City and his residency at Vembadi Polyclinic in Ceylon, Sri Lanka.

He maintains his advanced credentials with continuing education. Dr. Sivalingam is board certified in internal medicine and licensed in the state of California. He’s a fellow of the American College of Physicians and a member of the American Medical Association, American Society of Echocardiography, American Academy of Anti-Aging Medicine, and numerous other professional organizations.

At First Valley Medical Group, Dr. Sivalingam provides premium care for patients with a variety of chronic diseases using a compassionate bedside manner. He uses the most innovative technology and procedures to provide expert treatments.

Dr. Sivalingam evaluates each patient as a whole person and offers conservative treatments whenever possible. He and his team warmly welcome patients to First Valley Medical Group and look forward to serving them.

Dr. Barry Buffman has been practicing since 1980 in internal medicine with a specialty in urology. He graduated from the Rush Medical College in Chicago, IL and practices with a focus on a multitude of urological issues, such as sexual dysfunction, bladder, and prostate conditions. In addition, Dr. Buffman is involved with medical research for various urological conditions. In his spare time Dr. Buffman has a passion for teleplay/screenplay, musical composition, guitar, and piano.

Kanagaratnam Sivalingam, MD, FACP, is a skilled internist at First Valley Medical Group in Lancaster, California. He has more than 40 years of experience in treating numerous acute and chronic conditions. Dr. Sivalingam spends time with patients and listens to their concerns, giving them a voice in their treatment.

Dr. Sivalingam earned his medical degree from the University of Ceylon Medical School in Peradeniya, Sri Lanka. He completed his internal medicine training at the Hospital for Joint Diseases in New York City and his residency at Vembadi Polyclinic in Ceylon, Sri Lanka.

He maintains his advanced credentials with continuing education. Dr. Sivalingam is board certified in internal medicine and licensed in the state of California. He’s a fellow of the American College of Physicians and a member of the American Medical Association, American Society of Echocardiography, American Academy of Anti-Aging Medicine, and numerous other professional organizations.

At First Valley Medical Group, Dr. Sivalingam provides premium care for patients with a variety of chronic diseases using a compassionate bedside manner. He uses the most innovative technology and procedures to provide expert treatments.

Dr. Sivalingam evaluates each patient as a whole person and offers conservative treatments whenever possible. He and his team warmly welcome patients to First Valley Medical Group and look forward to serving them.

Dr. Barry Buffman has been practicing since 1980 in internal medicine with a specialty in urology. He graduated from the Rush Medical College in Chicago, IL and practices with a focus on a multitude of urological issues, such as sexual dysfunction, bladder, and prostate conditions. In addition, Dr. Buffman is involved with medical research for various urological conditions. In his spare time Dr. Buffman has a passion for teleplay/screenplay, musical composition, guitar, and piano.

Cydney Denning, PA-C is a board certified physician assistant who received a Bachelor’s degree in Biological Sciences at Missouri University of Science & Technology in Rolla, Missouri and a Master’s degree in Physician Assistant Studies at Saint Louis University in Saint Louis, Missouri. Cydney’s medical background includes working in both the orthopedic and dermatologic fields. Cydney’s clinical focus includes preventative care, lifestyle intervention, acute and chronic disease management, as well as diagnosing and treating various other conditions. She performs a variety of different in-office procedures including intra-articular joint injections, Pap smears and more. Cydney displays a great deal of empathy and compassion for her patient’s while providing quality, evidenced based care to those in her community. She is currently accepting new and established patients.

Brett Wertman, MD, FACC, is a triple board-certified cardiologist who is widely respected for his treatment and care for patients at Coastal Cardiology of Orange County in Ladera Ranch and Irvine, California.

Dr. Wertman, who twice has been named a Physician of Excellence by the Orange County Medical Association, also leads the Cardiac Rehabilitation Program at Hoag Hospital Irvine in Irvine. 

An Orange County native, Dr. Wertman graduated summa cum laude and with Phi Beta Kappa Society honors in earning his Bachelor of Arts degrees in biochemistry and molecular, cellular, and developmental biology from the University of Colorado Boulder in Boulder, Colorado.

Dr. Wertman then completed his medical degree from the University of Washington in Seattle, Washington, and went on to finish his internship and residency training in internal medicine at Ronald Reagan UCLA Medical Center in Los Angeles, California.

He completed his fellowship training in cardiology and interventional cardiology at Cedars-Sinai Medical Center, also in Los Angeles.

Dr. Wertman has authored numerous publications in leading peer-reviewed journals and participated in live case transmissions to national meetings, demonstrating new techniques in the treatment of coronary artery disease and valvular heart disease. 

Dr. Wertman is highly trained in the percutaneous treatment of valvular heart disease, including aortic valve replacement using the Edwards Sapien heart valve system, as well as mitral valve repair using the Abbott MitraClip™ system. He also has significant experience in other novel interventional therapies.

He looks forward to welcoming new patients and offering superior care to those returning to Coastal Cardiology of Orange County.

In Dr. Wertman’s spare time, he enjoys relaxing with his family, traveling, and exercising.

Huy Nguyen, MD, FACC, a cardiologist at Coastal Cardiology of Orange County, has deep roots in Irvine, California, one of the communities the practice proudly serves, along with Ladera Ranch, California.

Dr. Nguyen grew up in Irvine and received his Bachelor of Arts in biology from the University of California, Irvine. 

He then earned a master's in applied physiology and earned his medical degree from Chicago Medical School, one of the graduate schools of the Rosalind Franklin University of Medicine and Science in North Chicago, Illinois. 

Back in Orange County, he completed his internship and residency in internal medicine, as well as his fellowship training in general cardiology, all at UC Irvine Medical Center in Orange, California.

He then moved to New York to complete his interventional cardiology fellowship at Mount Sinai Hospital in New York City, where he was awarded Outstanding Interventional Cardiology Fellow of the Year.

Throughout the course of his training, Dr. Nguyen has given numerous lectures and presentations, and has authored publications in peer-reviewed journals on various topics in both general and interventional cardiology.  

He was involved with and participated in live case demonstrations at Mount Sinai Hospital, focusing on complex coronary interventions.

Dr. Nguyen believes in a patient-centric approach to cardiovascular care and focuses on the collaborative efforts with his patients in optimizing their outcomes.

In his spare time, Dr. Nguyen enjoys spending time with his family, watching movies, playing basketball, and surfing.

Teferi Mitiku, MD, FACC, is a board-certified cardiologist in Clinical Cardiac Electrophysiology and Cardiovascular Disease. He specializes in cardiac electrophysiology (EP) and provides the entire spectrum of arrhythmia treatments, including medical therapy, catheter ablation, and device-based therapy. Dr. Mitiku strives to provide compassionate care for his patients at Coastal Cardiology of Orange County in Irvine and Ladera Ranch, California.

Dr. Mitiku earned his Bachelor of Science in molecular cell and development biology from the University of California, Los Angeles (UCLA), graduating magna cum laude. He went on to attend the David Geffen School of Medicine at UCLA, receiving his Doctor of Medicine. 

He then completed his internship and residency in internal medicine at Stanford University Hospital in Stanford, California, before completing cardiovascular medicine and electrophysiology fellowships at Yale New Haven Hospital in New Haven, Connecticut.

He previously served as the Director of Electrophysiology and an Assistant Professor of Medicine in the Division of Cardiology at the University of California, Irvine (UCI) School of Medicine and Wayne State University School of Medicine.

During his academic appointments, Dr. Mitiku enjoys teaching medical students, residents, and cardiology fellows. He was awarded Outstanding Teacher of The Year for three consecutive years and was granted entry into the Gold Humanism Honor Society.

Dr. Mitiku is affiliated with UCI Medical Center in Orange, California, and serves as the director of electrophysiology at Hoag Irvine Hospital in Irvine, California. At Hoag, He was awarded the top quality performer within the Cardiology peer group for 2019 and 2020. He is also a member of the American Heart Association, American College of Cardiology, and the American Medical Association.

He looks forward to welcoming new patients and providing excellent care for those continuing at Coastal Cardiology of Orange County.

LAGUNA BEACH AESTHETICS

Adrienne O’Connell, DO, is a native to the San Francisco Bay area and an expert aesthetic and wellness specialist at Laguna Beach Aesthetics, an aesthetics and wellness clinic in the heart of Laguna Beach, California.   

Dr. O’Connell also has advanced training certificates in Aesthetic procedures including PRP for the “Vampire Facelift” and hair rejuvenation. She gained advanced skill in Botox, Dermal Fillers, chemical peels, sclerotherapy, skin rejuvenation and resurfacing with CO2 lasers and light therapy, microneedling and PRP – platelet rich plasma.  

At Laguna Beach Aesthetics, Cosmetic Dermatology and Laser Center, you will meet with Dr. O’Connell herself for a consultation and all procedures are performed by her.  Each visit and procedure are tailored to you specifically by Dr. O’Connell.

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Hisham Abukamleh, MD, is a primary care practice in Apple Valley, California. There, board-certified internal medicine physician Hisham Abukamleh, MD, sees adult men and women of all ages in a welcoming setting.

Dr. Abukamleh provides caring, compassionate, and kind medical care. He treats a wide range of internal medicine concerns, including diabetes, lung diseases, and heart disease. He also treats high blood pressure (hypertension), skin conditions, and more.

Dr. Abukamleh provides physicals, chronic disease management, wellness checkups, sick visits, weight management, and comprehensive wellness care. Part of the exceptional weight loss services available with Dr. Abukamleh include weight loss injections and phentermine, both of which reduce appetite to make weight loss simple and long-lasting.

Dr. Abukamleh was raised in the High Desert and speaks both English and Arabic. He obtained his medical degree from the American University of the Caribbean School of Medicine in Sint Maarten and completed his internship and residency at Kern Medical Hospital in Bakersfield, California. He treats a variety of chronic conditions with a focus on preventive care.

By taking a patient-centered, evidence-based, and clinical approach, Dr. Abukamleh improves patients’ well-being at every life stage. He welcomes existing and new patients and looks forward to maximizing their quality of life.

Schedule a primary care appointment with Hisham Abukamleh, MD, by calling the office or booking a visit online today.

Dr Khosla is a Board Certified Physician, he is also Board Certified by the American Board of Regenerative Medicine. He is fellowship trained in interventional pain management, functional & regenerative medicine. He provides an array of pain treatments such as platelet-rich plasma (PRP) regenerative therapies along with prolotherapy, epidurals, peripheral nerve blocks, joint injections, spinal cord stimulators, vertiflex interspinous spacer implants, percutaneous laser disc discectomy (LASE), and more. He serves both Northern and Southern California locations. 

Janne Huynh Dewing, MD, is a board-certified physician with over 20 years of experience providing high quality, personalized patient care. Specializing in internal medicine at her Laguna Beach, California, private practice, Dr. Janne has experience preventing, diagnosing, and treating a wide range of acute and chronic conditions. She helps patients address their medical risks and concerns, and take steps towards improving their overall health. 

Dr. Janne completed her undergraduate studies at Cornell University in Ithaca, New York. She then went on to the University of California, Los Angeles (UCLA) School of Medicine, earning her Doctor of Medicine. After completing her education, Dr. Janne began her medical training at New York-Presbyterian Hospital in New York, where she completed both her internship and residency. 

Dr. Janne has held positions in both patient care and education. After her residency, she held the position of assistant professor of clinical medicine at the Albert Einstein College of Medicine in the Bronx, New York, where she was responsible for teaching evidence-based medicine to more than 70 medical students, interns, and physicians. She also served as an attending physician at Jack D. Weiler Hospital, also in the Bronx. 

As an internist, Dr. Janne helps adults address the full spectrum of their health care needs. She provides personalized health care solutions, including physician grade supplements through Metagenics® and Xymogen®, and specializes in several innovative treatment methods, including hormone replacement therapy and personalized weight loss programs. She also provides several gentle and effective aesthetic solutions like chemical peels, Botox®, and TempSure® Envi.

Dr. Janne’s office has a convenient location on the South Coast Medical Center campus. To schedule your visit, call or use the online booking tool.

Richard Lam, MD, is a highly respected physician specializing in Internal Medicine and Geriatrics at Richard C Lam MD & Associates. He sees patients from two Temecula and Sun City, California, offices and provides telemedicine services.

Dr. Lam is an esteemed physician in the Diamond Valley, serving the community since 1998, and has established a thriving private practice. Throughout years of service, he has become deeply connected to the local community, building long-lasting relationships with patients and earning their trust through exceptional medical care.

He has a solid educational background and a deep commitment to patient-centered care. He completed his undergraduate studies at the University of California, Irvine, where he pursued a dual major in Biology and Chemistry and a minor in Art History. His passion for the sciences and humanities allowed him to develop a well-rounded perspective in his approach to patient care. 

Dr. Lam attended Temple University in Philadelphia for his Medical degree, graduating magna cum laude. 

He pursued residency training at UCLA-Wadsworth Veteran's Hospital, gaining Internal Medicine and Geriatrics expertise and developing a comprehensive understanding of complex medical conditions and the specific needs of older adults.

Dr. Lam understands collaboration and shared decision-making are crucial to achieving the best outcomes. By building strong patient partnerships, he ensures that unique needs, concerns, and values are considered in treatment plans. 

With an integrative approach to medicine, Dr. Lam combines evidence-based practices with a holistic understanding of patients' well-being. He is particularly interested in managing heart disease, Alzheimer's, arthritis, and diabetic care. 

Dr. Lam stays current with the latest advancements, allowing him to provide his patients with the most effective and innovative treatments. His practice offers same-day visits, demonstrating a commitment to providing timely and accessible care. Dr. Lam understands the importance of addressing urgent medical needs promptly.

His commitment to his patients extends beyond the walls of his practice. He actively engages in community outreach programs, health education initiatives, and local events to promote awareness and preventative care within the Diamond Valley area.

Dr. Lam leads a fulfilling personal life. He is happily married and a proud father of four children. In his free time, he enjoys various hobbies, including fishing, woodwork, drawing and painting, physical fitness, and traveling with his family. These activities bring him joy and contribute to his well-rounded approach to life and preventive care.

Whether addressing acute illnesses, managing chronic conditions, or providing preventive care, Dr. Lam remains committed to serving the healthcare needs with excellence and compassion.