Find a Top Internist Near Me in Diamond Bar, CA – Book an Appointment Instantly

Experienced board-certified cardiologist Payam R. Yashar, MD has proudly served patients from all over Southern California for over fifteen years, and is now extending his counsel as far as Europe and Asia.

Dr. Yashar is based at Cedars-Sinai Medical Center in the Beverly Hills neighborhood of Los Angeles, California, the very hospital where he was born. He and his team offer specialized and highly responsive concierge-style care that you can receive in-office or in the comfort of your own home, as the practice offers house calls and telehealth services. As one of the most called-upon cardiologists at Cedars-Sinai, Dr. Yashar brings a wealth of experience to his patients when it comes to diagnosing, managing and treating a myriad of heart conditions. In addition to providing expert treatment, Dr. Yashar is especially adroit in addressing preventative care. 

Upon earning his medical degree from the prestigious Albert Einstein College of Medicine in New York in 1997, Dr. Yashar completed his internship and residency at Cedars-Sinai. He then trained in fellowship in Cardiovascular Diseases at the University of Southern California.  Thereafter, he pursued further specialized training in Cardiac Electrophysiology at the University of California, Los Angeles and the West Los Angeles Veterans' Medical Center.

Dr. Yashar is passionate about providing expert-level care to his patients. He offers diagnoses and treatment for conditions like chest pain, atrial fibrillation, heart failure and arrhythmia using the latest technology available. He also performs heart catheterization, pacemaker and defibrillator implantation, as well as ablations for cardiac arrhythmia.  All of his invasive procedures are performed at Cedars-Sinai, and diagnostic testing is undertaken either in office or with the utilization of remote testing whenever possible. 

Today, Dr. Yashar is affiliated with the Cedars-Sinai Smidt Heart Institute, and the Preventive and Consultative Heart Center.  He is a volunteer clinical instructor at the University of California, Los Angeles School of Medicine.  In addition, he has the distinct honor of being voted one of Los Angeles Magazine's Top 100 Cardiologists. Aside from his outstanding professional care, Dr. Yashar is a truly compassionate human being who genuinely regards the well-being of his patients as his utmost priority.  

Pedram J. Enayati, MD, is Co-Director of Gastroenterology Associates of Beverly Hills. He is an expert in the care of gastroenterology patients, and is up to date on the latest treatments and cutting edge technology. As he and his Co-Director, Dr. Omid Shaye, have quickly become the “go-to” doctors for all GI disorders in Beverly Hills, California, Dr. Enayati brings a wealth of experience and knowledge to GABH.

Dr. Enayati has done extensive research on GI disorders, liver diseases, as well as liver/kidney transplantation. He is the author of numerous journal articles and abstracts and has presented on a variety of topics both nationally and internationally. Dr. Enayati is also the recipient of numerous awards, including Solomon Research Honors; Rubenstein Research Honors; and Excellence in Research award was given by the Western Medical Research Committee. He is a member of the American Society of Gastroenterology and Endoscopy; American

Gastroenterology Association; American College of Physicians; American Society of Internal Medicine; California Medical Association; and American Medical Students Association. Dr. Enayati has certifications from The American Board of Internal Medicine and American Board of Gastroenterology.

Dr. Enayati earned his undergraduate at the University of California, Los Angeles where he was Phi Beta Kappa, majoring in neuroscience, and then went on to earn his medical degree at the university’s medical school. He completed his internship and residency in internal medicine at Cedars Sinai Medical Center. He also did a Gastroenterology Fellowship in the Department of Digestive Diseases at UCLA’s David Geffen School of Medicine. Dr. Enayati lives in Los Angeles and is married and has a young daughter. He enjoys biking and hiking.

Dr. Sasan Massachi is a board-certified internal medicine specialist located in Beverly Hills, CA. His office facilities are equipped with a range of services for men and women including annual physicals, vaccinations, ultrasounds, digital x-rays, bone density scans, and EKG stress tests. Additionally, he offers patients the convenience of an in-house laboratory, ensuring expedited test results for his patients. Preventative care is paramount to Dr. Massachi's practice, as he specializes in the most innovative techniques available through modern medicine today. Additionally, Dr. Massachi assists patients with identifying healthy practices and behaviors to incorporate into their daily lives that can stave off common illnesses. 

Dr. Massachi received his undergraduate degree at the University of California, Los Angeles, and attended medical school at the University of California, San Diego. Upon graduating, Dr. Massachi completed his internship and residency at Cedars-Sinai Medical Center in Los Angeles. He is credentialed with a California State Medical License and certified with the American Board of Internal Medicine. After graduating in 2010 from his residency program, Dr. Massachi joined the prestigious physicians group at Century City Primary Care, and recently opened a new state of the art office in Beverly Hills. 

Additionally, Dr. Massachi remains affiliated with Cedars-Sinai Medical Center, performing a variety of procedures and overseeing inpatient care. Dr. Massachi's unique personal approach extends absolute courtesy, empathy, discretion, and respect to each of his patients, ensuring you receive foremost care and treatment in a comfortable and stress-free environment. 

To schedule an appointment please call 310-553-3013 or visit www.sasanmassachi.com/ and click on the ‘Request Appointment’ button.

Dr. Adam Karns is a physician serving patients in the Los Angeles, CA area. Dr. Karns feels strongly that each and every patient deserves the highest standard of medical care. Through his solo medical practice, he strives to provide exactly that to each patient every day. Dr. Karns offers services including hypertension treatment, diabetes treatment, ear infection treatment, heart disease treatment, mental health treatment, common cold treatment, obesity management, and much more through physical exams.

Dr. Karns attended University of California Los Angeles, where he earned his Bachelors of Arts in History. he then went on to earn his Masters Degree in Physiological Studies and Doctorate of Medicine from Chicago Medical School. With more than 18 years of experience as a board certified Internal Medicine physician, Dr. Karns has the knowledge and experience to provide patients with the very best in care. Call anytime to arrange an appointment with Dr. Karns.

The Ghaly Center is the place for men and women living in Torrance, California, to experience healthcare solutions that let them live better — and longer. Under the leadership of Fouad Ghaly, MD, the center provides top-notch services in regenerative medicine.

Dr. Ghaly is one of the most influential physicians working in regenerative medicine therapies. He has participated in numerous regenerative medicine conferences all over the world. He has also collaborated with a distinguished, international group of leading physicians, researchers, and scientists on various projects. These projects include presentations on regenerative medicine, platelet-rich plasma therapy, bioidentical hormone replacement therapy, tissue-specific stem cell research and enhanced external counterpulsation.

Dr. Ghaly created the Ghaly Center for Regenerative Medicine in 1995 to focus his attention on this relatively new field. He incorporates innovative scientific research, alternative therapies, state-of-the-art technology, and conventional medicine to create customized treatment plans. He’s passionate about educating and guiding each patient.

Dan Naim, MD, is a pulmonary, critical care, and sleep medicine specialist at The Beverly Hills Lung and Sleep Institute in Beverly Hills, California.

Dr. Naim graduated from Drexel University College of Medicine in Philadelphia in 2004.  He then completed his residency at the UCLA-VA combined Internal Medicine residency program. He subsequently completed a fellowship in Sleep Medicine at the same institution. He continued his medical training by completing a fellowship in Pulmonary and Critical Care Medicine at Cedars-Sinai Medical Center in Los Angeles. 

He is quadruple board-certified through the American Board of Internal Medicine in the fields of Internal Medicine, Sleep Medicine, Pulmonary Medicine, and Critical Care Medicine.  He is a member of the American Academy of Sleep Medicine and the American College of Chest Physicians. He expertly manages a wide range of conditions related to pulmonary disease and sleep disorders in addition to taking care of critically ill patients in the hospital.  His clinical areas of interest include obstructive lung disease, lung cancer diagnosis, chronic cough, interstitial lung disease, obstructive sleep apnea, and narcolepsy.  During his consultations, Dr. Naim fully explains patients’ conditions and helps them choose an appropriate treatment plan. 

To better serve his patients, Dr. Naim is trilingual in English, Spanish, and Farsi.

Dr. Sherwin Hariri is a board-certified adult and pediatric allergist and immunologist serving patients in Beverly Hills and the greater Los Angeles, CA area. He specializes in both adult and pediatric patients with asthma, allergic rhinitis, allergic conjunctivitis, sinusitis, history of food allergies, drug allergies, mast cell activation syndorme (MCAS), immune deficiencies, eczema and other allergic skin rashes.

Dr. Hariri is also an allergy and immunology attending Physician at Cedars-Sinai, where he sees patients with complicated allergic diseases. At Beverly Hills Allergy, we strive to help you breathe better so you can live better.

Dr. Hariri attended Saint Louis University School of Medicine, after which he completed an internship at the Harbor-UCLA Medical Center. He then went on to complete a residency in Internal Medicine at the world-renowned Cedars-Sinai Medical Center in Los Angeles, California.

After his residency, he went on to teach residents at Cedars-Sinai Medical Center (where he still teaches residents) and the West-LA VA Medical Center (a UCLA-affiliated hospital) as an academic hospitalist. He then decided to specialize in a condition that has always been his passion: Allergies. Dr. Hariri completed his fellowship in allergy and immunology at the prestigious UCLA West-LA VA program with pediatric rotations at the world-class Children's Hospital in Los Angeles (CHLA).

A diplomate of the American Board of Allergy and Immunology, Dr. Hariri is an expert in treating both adult and pediatric allergic and immunologic diseases. He is a clinical instructor at UCLA, and he volunteer attends at the West-LA VA Allergy & immunology clinic, where he teaches fellows (Doctors training to be allergy & immunology specialists) and internal medicine residents (physicians-in-training). 

Dr. Hariri is a Fellow of the American Academy of allergy, asthma and immunology and the American College Of Allergy, Asthma, Immunology. Dr. Hariri holds privileges at Cedars-Sinai Medical Center. He is often consulted by other physicians to see their patients who are hospitalized with severe and complicated allergic and immunologic conditions.

Dr. Hariri performs comprehensive skin testing for aeroallergens (such as grasses, trees, weeds, molds, dust mites, and pet dander) and all kinds of foods. He offers immunotherapy to those who are looking for a potential cure for their allergic symptoms. The doctor also performs a very comprehensive patch test for delayed hypersensitivity to all kinds of chemicals, preservatives, fragrances, metals and dyes causing different types of skin rashes in his patients. Oral food and drug challenges are also performed in his office, as well as spirometry to test lung function in asthma patients.

Dr. Jeff Toll is passionate about developing strong patient-physician relationships and is committed to helping his patients improve their overall health and well-being. At his Los Angeles-based private practice, he focuses on delivering integrated preventive care. His holistic approach focuses on providing highly personalized care that caters to each patient’s whole health — mind, body, and soul.

Dr. Toll completed his bachelor’s degree at the University of Southern California. He went on to earn his medical doctorate at Thomas Jefferson University in Philadelphia and completed his Internal Medicine Residency at Cedars-Sinai in Los Angeles.   

Dr. Toll understands his patients are busy and has structured his Los Angeles-based practice to accommodate their schedules and needs. In addition to his concierge program,  Dr Toll is now in network with medicare.  He also provides executive physicals, specialized preventative testing, as well as being available on a limited basis for house calls and telemedicine services. Patients benefit from functional medicine aimed at improving and balancing their hormones and body function, including IV therapies and customized weight loss programs.

Outside of his practice, Dr. Toll is Volunteer Faculty at Cedars-Sinai Internal Medicine Residency, teaching interns, residents, and UCLA medical students. He also has done medical research and has published in the areas of medical genetics, cancer, and addiction.

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.

"Calm, confident, and professional. Everything you’re looking for in a health care professional." -Shannon D.

Valley Village Health Clinic is an excellent choice for medical care in the Valley Village area and beyond. The clinic is staffed by highly skilled medical professionals who provide top-quality care in a comforting and calm environment. Dr. Kristine Vardanyan is an excellent leader, and the clinic is an essential resource for many in the community.

To achieve outstanding health, it's important to find a great primary care practitioner like Dr. Vardanyan, who has a wealth of education and experience, including an undergraduate degree from the University of Massachusetts Dartmouth. After earning her medical degree from Yerevan State Medical University in Armenia and completing her residency in internal medicine at Berkshire Medical Center in Pittsfield, Massachusetts, Dr. Vardanyan is now in private practice. She is dedicated to helping her patients live active, healthy, and fulfilling lives.

At Valley Village Health Clinic, routine primary care services are focused on preventive healthcare to ensure that patients maintain good health. Men's and women's health services are also available as a part of the family medicine practice, and the clinic emphasizes wellness with treatments such as IV therapy.

Book your first visit online or over the phone (707) 873-7835 for compassionate care from an experienced physician in Valley Village, Van Nuys, North Hollywood, Sherman Oaks, Burbank, and beyond (via telehealth).