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Internists with Great Reviews in Santa Clarita, CA

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Verified Internists in Santa Clarita, CA

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236 providers

Availability last updated 10/20/2026

Dr. Sasan Massachi, MD
4.98
(133)
Dr. Sasan Massachi, MD Internist
25.1 mi
4.98 (133)
8900 Wilshire Blvd
Suite #360
Beverly Hills, CA 90211
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About Dr. Sasan Massachi, MD

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.

Practice
Sasan Massachi, MD
Latest Review
“I really liked Dr Massachi and plan to switch over to his practice as my new primary care physician ”
Dr. Sasan Massachi, MD

Dr. Sasan Massachi, MD

Internist

8900 Wilshire Blvd
Suite #360
Beverly Hills, CA 90211

4.98 (133)
Dr. Adam Karns, MD
4.77
(31)
Dr. Adam Karns, MD Internist
25.1 mi
4.77 (31)
8920 Wilshire Blvd
Suite 330
Beverly Hills, CA 90211
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About Dr. Adam Karns, MD

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.

Practice
Adam Karns, MD
Latest Review
“Wonderful internist. Like the old days when doctors listened and were truly cared about their patients. And he is very thoughtful and analytical too. Great doctor.”
Dr. Adam Karns, MD

Dr. Adam Karns, MD

Internist

8920 Wilshire Blvd
Suite 330
Beverly Hills, CA 90211

4.77 (31)
Healthcare specialist
5.0
(1)
Dr. Jeff Toll, MD Internist
25.3 mi
5.0 (1)
2080 Century Park E
Suite 1807
Los Angeles, CA 90067
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About Dr. Jeff Toll, MD

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.

Practice
Jeff Toll, MD
Latest Review
“The staff was very welcoming. Made me Feel comfortable and we’re extremely gently. Thanks”

Dr. Jeff Toll, MD

Internist

2080 Century Park E
Suite 1807
Los Angeles, CA 90067

5.0 (1)
Dr. Jessica Cho, MD
5.0
(48)
Dr. Jessica Cho, MD Internist
25.3 mi
5.0 (48)
2080 Century Park East
Ste 807
Los Angeles, CA 90067
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About Dr. Jessica Cho, MD
As a physician, my passion is to educate and empower my patients with truth and inspiration. To me, wellness is not the absence of disease, but rather a life of happiness, health and vitality. My medical wisdom is rooted in integrative treatments and a command of Western and Eastern medicines. My interdisciplinary background provides a variety of tools that help patients achieve success. Rather than focusing on symptoms, I address the whole person using a multi-faceted lens and treat them through orchestrating bio-identical hormones, IV nutrition therapy, heavy metal detoxification, and vitamin shots. I welcome the challenge of complex medical issues spanning from low energy, poor sleep, brain fog, weight issues, and hormonal and immunological imbalances.
Practice
Wellness at Century City
Latest Review
“Dr. Cho gives you very personalized feedback and recommendations that have proved to be extremely helpful to me.”
Dr. Jessica Cho, MD

Dr. Jessica Cho, MD

Internist

2080 Century Park East
Ste 807
Los Angeles, CA 90067

5.0 (48)
Catherine Fuller, MD
5.0
(54)
Catherine Fuller, MD Allergy & Immunology Physician
25.6 mi
5.0 (54)
11645 Wilshire Blvd.
Suite 1090
Los Angeles, CA 90025
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About Catherine Fuller, MD
Catherine Fuller, MD, is a respected allergy, asthma, and immunology specialist known for her in-depth approach. Time is dedicated to discovering the root cause of illness, rather than just treating symptoms. She prioritizes patient education, desensitization, and avoidance of allergy triggers. She emphasizes the judicious use of medications, avoiding overuse of antibiotics. She is well-versed with modern biologic therapies for food allergy, eczema, asthma, hives, mast cell disorders, and chronic sinusitis. She is recognized as an astute diagnostician, as a Super Doctor of Los Angeles, and among “America’s Top Physicians”. She served as President of the Los Angeles Society of Allergy and Clinical Immunology, and actively participates in maintenance of Board Certification. Book appointments online or by phone for specialized and compassionate care.
Practice
Catherine Fuller, MD
Latest Review
“She was informative and kind. I loved her”
Catherine Fuller, MD

Catherine Fuller, MD

Internist

11645 Wilshire Blvd.
Suite 1090
Los Angeles, CA 90025

5.0 (54)
Dr. Joseph Pierson, md
4.71
(7)
Dr. Joseph Pierson, md Adult Medicine Physician
25.6 mi
4.71 (7)
301 North Prairie Ave
Suite 230
Inglewood, CA 90301
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About Dr. Joseph Pierson, md

Joseph E. Pierson, MD began his professional career with undergraduate studies at UC Irvine. He attended medical school at UCLA, then went on to complete his residency at Emory University Grady Memorial Hospital with an emphasis upon Pediatrics and Internal Medicine. He is currently a member of the clinical staff at Southern California Hospital. He is also affiliated with California Hospital Medical Center, Silverlake Hospital, Gardena Memorial Hospital, and many more throughout the Los Angeles area. 

Dr. Pierson is the Medical Director and CEO of Allied Health Solutions Medical Group. In this role, he strives to provide Comprehensive Inpatient and Outpatient Care services for adults and children as well as to provide Women’s health and preventive health care within several communities.

Dr. Pierson's main objective is to develop a broader system of health care, improve the health of the general population, improve healthcare outcomes, and increase efficiency within a Medical Home Model. He strives to develop a robust system through strategic partnerships among physicians, specialists, hospitals, and community health centers.

Outside of his passion for his practice, Dr. Pierson enjoys billiards, traveling, bicycling, chess, and competitive sports.

Practice
Allied Health Solutions Medical Group
Latest Review
“Great front desk customer service and wonderful doctors ”
Dr. Joseph Pierson, md

Dr. Joseph Pierson, md

Internist

301 North Prairie Ave
Suite 230
Inglewood, CA 90301

4.71 (7)
Dr. Isabella Lai, MD
Dr. Isabella Lai, MD Internist
25.7 mi
10780 Santa Monica Boulevard
Ste 350
Los Angeles, CA 90025
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About Dr. Isabella Lai, MD
Our goal at Infinity Wellness Institute is to help you manage your symptoms and improve your quality of life. Dr. Isabella Lai, MD will bring the best of modern Western medicine and combine it with integrative medicine to help you on your healing journey. We offer Acupuncture, Cupping, Trigger Point, and Food As Medicine, in addition to a meditation journey. Our modalities are evidence based and will get you back to living your most vibrant life.
Practice
Infinity Wellness Institute Inc
Dr. Isabella Lai, MD

Dr. Isabella Lai, MD

Internist

10780 Santa Monica Boulevard
Ste 350
Los Angeles, CA 90025

Dr. Youram Nassir, MD
4.93
(76)
Dr. Youram Nassir, MD Hematology & Oncology Physician
26.1 mi
4.93 (76)
5901 W. Olympic Blvd.
Suite 505
Los Angeles, CA 90036
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About Dr. Youram Nassir, MD

Youram Nassir, MD, is a world-renowned hematologist and oncologist serving patients at Cancer Care Institute in the Mid-Wilshire district of Los Angeles, California. With 22 years in practice, Dr. Nassir applies his unrivaled understanding of cancer care to the effective treatment of brain, lung, liver, pancreas, prostate, ovarian, breast, leukemia, multiple myeloma, colon, stomach, head and neck cancer, and lymphoma. His multidisciplinary, collaborative approach and persistence have helped save countless lives over the last two decades, winning him recognition within his community and the medical field.

Many people discover their passion later in life, but Dr. Nassir has always been firmly devoted to the science of healing. From the early age of fourteen, he knew he would pursue a career in the medical field. 

His formal post-secondary education began in Canada at the University of Toronto. After completing two years of undergraduate studies, he moved to the United States to finish his degree at UCLA, one of California’s top research institutions. Dr. Nassir’s time at the University of California, Los Angeles, was integral in his future success as an esteemed physician. His passion for the healing arts fueled his studies, earning him acclaim among his peers and educators.

By the time Dr. Nassir graduated magna cum laude from UCLA in 1992, he was well-traveled, steeped in the knowledge of medical research, and eager to continue pursuing his passion for healing. Upon completing his undergraduate studies at UCLA, Dr. Nassir enrolled at the prestigious Cornell University Medical College in New York, one of the country’s most renowned medical schools. Here, he received the highly respected American Foundation for Urological Disease Research Scholarship for his outstanding performance in the program.

Dr. Nassir’s academic career at Cornell University was reaching new horizons when his father was diagnosed with terminal stage 4 prostate cancer. To be near his family during his father’s final months, Dr. Nassir made the difficult decision to transfer his medical schooling to UCLA. As he supported his father through his cancer treatment, he witnessed the vital role that oncologists play in the lives of cancer patients and their families. Through this pivotal, first-hand experience, Dr. Nassir realized his calling in the field of oncology.

After receiving his Doctor of Medicine from the UCLA School of Medicine in 1996, Dr. Nassir continued his medical training as an intern and resident for the next three years at UCLA Medical Center. In 1999, he chose to attend USC Medical Center and Norris Cancer Center as a hematology and oncology fellow, where he completed his hematology/oncology fellowship under the guidance of world-class mentors in both fields.

Dr. Nassir has been in practice for more than twenty years. He currently practices at his private practice, Cancer Care Institute, and is independently affiliated with Cedars-Sinai Medical Center. His success in his field can be attributed not only to his exceptional medical training and unshaken persistence but also to a deep and personal understanding of cancer and patient care.

Dr. Nassir understands that there is no such thing as “standard cancer,” so there shouldn’t be a standard approach to treating the disease. Instead, he takes a highly individualized, collaborative approach to patient care, offering novel therapies that are uniquely suited to your needs and circumstances. 

As cancer is a chronic disease, Dr. Nassir provides long-term care to help ensure the most positive possible outcomes. He has a unique understanding of the disease and stays with you and your family every step of the way, offering therapies, treatments, and dietary advice to help you make guided, well-informed decisions about your care. 

Today, Dr. Nassir’s reputation is widely celebrated in his community. Ratings from his patients and their families consistently spotlight his expertise and unyielding, compassionate approach. He is known as a gifted doctor and a compassionate man who strives daily to deliver hope and save lives.

In regard to his life mission and work, Dr. Nassir notes, “My hope is to continue to improve the quality of life for cancer patients, to turn incurable cancer from a death sentence into a chronic, manageable disease where people can live much longer and have satisfying lives.” Dr. Nassir is fortunate and humbled to have the opportunity to bring hope to cancer patients through individualized care and targeted cancer therapies.

Practice
Cancer Care Institute
Latest Review
“I want to express my deep appreciation for the incredible work done by the Cancer Institute. Dr Nassir, nurses, and staff demonstrate not only exceptional medical expertise but also genuine compassion and care for their patients and families. From the moment we walked in, the team treated us with dignity, patience, and understanding. They took the time to explain every step of the treatment process and made sure we felt supported during a very difficult time. Institutions like this are vital in the fight against cancer. Their dedication to research, patient care, and advancing new treatments gives hope to so many people facing this disease. Thank you to everyone at the Cancer Institute for your commitment, professionalism, and humanity.”
Dr. Youram Nassir, MD

Dr. Youram Nassir, MD

Internist

5901 W. Olympic Blvd.
Suite 505
Los Angeles, CA 90036

4.93 (76)
Healthcare specialist
5.0
(14)
Dr. Alexis Peraino, MD Specialist
26.2 mi
5.0 (14)
2475 Townsgate Road
Suite 200
Westlake Village, CA 91361
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About Dr. Alexis Peraino, MD

The concierge practice of Alexis Peraino, MD, INC. offers individualized care and personal attention to help patients achieve ultimate wellness. Serving adults in Westlake Village, California, Dr. Peraino takes time with each patient to learn about all aspects of their health. This thorough examination helps her get to know the entire person so she can offer effective preventive care.

Because Dr. Peraino sees a limited number of patients, she can really devote time and resources to their wellness, longevity, and disease prevention. She uses evidence-based medicine strategies to optimize all factors affecting a person’s health, including nutrition, physical activity, and other aspects of lifestyle.

The concierge practice also provides comprehensive internal medicine services, including diagnosing and treating acute conditions like the flu, a rash, or sore throat. She can also help you manage chronic disease and improve symptoms to avoid complications and live as healthy a life as possible. 

Call today or use this website to schedule a consultation online to benefit from Dr. Peraino’s dedicated care. With her help, patients can achieve the best health possible.

Practice
Alexis Peraino, MD, INC.
Latest Review
“She is smart, well informed, caring…in short perfect ”

Dr. Alexis Peraino, MD

Specialist

2475 Townsgate Road
Suite 200
Westlake Village, CA 91361

5.0 (14)
Christopher Dagher, MD
Christopher Dagher, MD Internist
27.6 mi
301 S. Fair Oaks Ave., Suite 208
Pasadena, CA 91105
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Christopher Dagher, MD

Christopher Dagher, MD

Internist

301 S. Fair Oaks Ave., Suite 208
Pasadena, CA 91105

Healthcare specialist
Kisuk Cho, MD Internist
27.6 mi
3130 West Olympic Boulevard Ste 230
Los Angeles, CA 90006
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Kisuk Cho, MD

Internist

3130 West Olympic Boulevard Ste 230
Los Angeles, CA 90006

Healthcare specialist
Joe Ponnezhan, MD Critical Care Medicine
27.9 mi
150 Bellefontaine Street
Pasadena, CA 91105
+1 more location
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Joe Ponnezhan, MD

Internist

150 Bellefontaine Street
Pasadena, CA 91105

Healthcare specialist
4.71
(598)
Dr. Daniel Brelian, MD Internist
28.5 mi
4.71 (598)
711 West College Street
Suite 203
Los Angeles, CA 90012
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About Dr. Daniel Brelian, MD

Dr. Daniel Brelian is a gastroenterologist at Downtown Gastro Medical Group in Los Angeles. He is board-certified in Internal Medicine and Gastroenterology, and is passionate about helping patients recover from a wide range of digestive ailments and conditions.

Dr. Brelian received his bachelor’s degree in Molecular and Cell Biology from the University of California, Berkeley and went on to earn his Doctor of Medicine at Drexel University College of Medicine in Philadelphia.

He has worked in some of the most innovative and prestigious medical centers in the nation, including Cedars-Sinai Medical Center, Georgetown University Hospital, and New York University. Before opening his private practice, he was a physician at the Pacific Alliance Medical Group.

Dr. Brelian’s work has appeared in numerous medical journals, including Gastroenterology and Gastrointestinal Endoscopy. Committed to the latest research and training, he is also a member of many professional organizations, including the American College of Gastroenterology (ACG) and the American Gastroenterological Association (AGA).

At Downtown Gastro Medical Group, Dr. Brelian helps patients recover from conditions like irritable bowel syndrome, food allergies, acid reflux disease, Crohn's disease, and more. With a commitment to the most excellent quality of patient care, his patients feel supported and empowered to live their healthiest lives.

Practice
Downtown Gastro Medical Group
Latest Review
“It's a nice place people are friendly and the Doctor is very nice and friendly ”

Dr. Daniel Brelian, MD

Internist

711 West College Street
Suite 203
Los Angeles, CA 90012

4.71 (598)
Healthcare specialist
Leah Grossman, MD Internist
28.6 mi
558 N Ventu Park Rd Ste A
Thousand Oaks, CA 91320
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Leah Grossman, MD

Internist

558 N Ventu Park Rd Ste A
Thousand Oaks, CA 91320

Dr. James Richards, MD
Dr. James Richards, MD Internist
32.3 mi
6222 W Manchester Ave
Suite A
Los Angeles, CA 90045
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About Dr. James Richards, MD
Dr. Richards earned his undergraduate degree from UC Berkeley and his medical degree from UCLA. Extending his training, he had the honor of a summer internship with Travis Windsor, M.D. who was a pioneer in electrocardiography (EKG technology). He then completed a 3 year residency in Internal medicine in the UCLA/VA program. His emphasis in preventive medicine and health promotion is in keeping with our practice philosophy.
Practice
Manchester Medical Group PC
Dr. James Richards, MD

Dr. James Richards, MD

Internist

6222 W Manchester Ave
Suite A
Los Angeles, CA 90045

Dr. Paymon Banafshe, DO
Dr. Paymon Banafshe, DO Internist
32.3 mi
6222 W Manchester Ave
Suite A
Los Angeles, CA 90045
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About Dr. Paymon Banafshe, DO
Dr. Banafshe earned his undergraduate degree from UCLA and he then completed his internship and residency in Internal Medicine at Los Angeles County/USC Medical Center. Dr. Banafshe is sought after for his warm manner, capacity to listen and ability to clearly discuss medical issues so that he and his patient can effectively participate as a team in making decisions about care.
Practice
Manchester Medical Group PC
Dr. Paymon Banafshe, DO

Dr. Paymon Banafshe, DO

Internist

6222 W Manchester Ave
Suite A
Los Angeles, CA 90045

Dr. Shelly Lapsi, MD
4.81
(101)
Dr. Shelly Lapsi, MD Ophthalmologist
36.4 mi
4.81 (101)
11436 Garvey Avenue
Suite E
El Monte, CA 91732
+1 more location
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About Dr. Shelly Lapsi, MD

Dr. Shelly Bagai Lapsi, MD, is a board-certified ophthalmologist and Medical Director for Omni Eye Care, with convenient locations in Covina and El Monte, California. With her extensive training, Dr. Lapsi is committed to providing the highest quality of ophthalmic care to her patients, utilizing the most recent medical and surgical advances. Her philosophy is to be actively engaged and dedicated to delivering this mission to her patients.

She attended the University of Washington School of Medicine, nationally recognized for its excellent training programs. Subsequently, she completed her residency at the University of Washington Department of Ophthalmology, a rigorous, top-tier program emphasizing a strong foundation in medical and surgical ophthalmology. At the University of Washington, she trained with many of the world’s most renowned ophthalmologists considered to be pioneers in the field.

Dr. Lapsi’s areas of interest include cataract surgery and glaucoma. Additionally, diabetic screening and macular degeneration care are central to her patient-centric approach. First and foremost, the goal of Omni Eye Care is to assist patients in maintaining excellent vision and eye health.  

When she is not practicing ophthalmology, Dr. Lapsi spends time with her husband and three children. She also enjoys reading, cooking, and photography, as well as traveling with her family. If you’re interested in ophthalmology services in the San Gabriel Valley, Dr. Lapsi is an exceptional eye physician and surgeon. She looks forward to meeting you and helping you achieve optimal eye health.

Practice
Omni Eye Care
Latest Review
“Transcendent.♾️”
Dr. Shelly Lapsi, MD

Dr. Shelly Lapsi, MD

Ophthalmologist

11436 Garvey Avenue
Suite E
El Monte, CA 91732

4.81 (101)
Healthcare specialist
Brittney Brown Internist
41.5 mi
16209 Paramount Blvd
Paramount, CA 90723
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Brittney Brown

Internist

16209 Paramount Blvd
Paramount, CA 90723