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Internists with Great Reviews in Fontana, CA

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Verified Internists in Fontana, CA

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495 providers

Availability last updated 06/21/2026

Dr. Brett Wertman, MD
4.89
(377)
Dr. Brett Wertman, MD Cardiovascular Disease Physician
38.6 mi
4.89 (377)
333 Corporate Drive
Suite 102
Ladera Ranch, CA 92694
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About Dr. Brett Wertman, MD

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.

Practice
Coastal Cardiology of Orange County
Latest Review
“Dr. Wertman is excellent. He is incredibly knowledgeable and very kind and considerate. I appreciate that he took the time to explain what he saw and answered all my questions. Crystal and Nicole were awesome. They are professional amd highly competent, and just as important, they made me feel right at ease, explaining everything we would be doing during the tests and why we're doing it. Dr. Wertman, Nicole and Crystal are highly skilled, personable and friendly. Thank you!”
Dr. Brett Wertman, MD

Dr. Brett Wertman, MD

Internist

333 Corporate Drive
Suite 102
Ladera Ranch, CA 92694

4.89 (377)
Sooraj Shah
4.95
(275)
Sooraj Shah Cardiovascular Disease Physician
39.7 mi
4.95 (275)
9940 Talbert Ave
101
Fountain Valley , CA 92708
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Latest Review
“Dr. Shah is always so patient and kind. He is very thorough and takes the time to explain things. Very satisfied with Dr. Shah and his staff.”
Sooraj Shah

Sooraj Shah

Internist

9940 Talbert Ave
101
Fountain Valley , CA 92708

4.95 (275)
Christopher Dagher, MD
Christopher Dagher, MD Internist
39.8 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
Vimal Ponnezhan, MD Critical Care Medicine
39.9 mi
150 Bellefontaine Street
Pasadena, CA 91105
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Vimal Ponnezhan, MD

Internist

150 Bellefontaine Street
Pasadena, CA 91105

Christopher Dagher, MD
Christopher Dagher, MD Internist
40.3 mi
Telehealth Appts
Pasadena, CA 91105
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Christopher Dagher, MD

Christopher Dagher, MD

Internist

Telehealth Appts
Pasadena, CA 91105

Dr. Rahul Gaglani, MD
5.0
(3)
Dr. Rahul Gaglani, MD Cardiovascular Disease Physician
40.5 mi
5.0 (3)
25395 Hancock Ave
Suite 230
Murrieta, CA 92562
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About Dr. Rahul Gaglani, MD

Rahul Gaglani, MD, is a board-certified interventional and general cardiologist serving patients at Core Cardiology in Murrieta and Temecula, California. He specializes in percutaneous interventions of the coronary arteries (radial approach) and structural heart disease intervention (atrial septal defects, patent foramen ovale, aortic stenosis, and hypertrophic cardiomyopathy). 

Dr. Gaglani graduated from the Rutgers School of Environmental and Biological Sciences in New Brunswick, New Jersey, with a Bachelor of Science in biochemistry with a concentration in economics. He then earned his Doctor of Medicine from Ross University School of Medicine. Upon graduating, he completed his internal medicine residency at Saint Vincent Catholic Medical Center and his fellowships in general and interventional cardiology at NewYork-Presbyterian Brooklyn Methodist Hospital, both in New York City. Prior to establishing his private practice, he worked at various medical centers in New York and California. 

He established his private practice in 2017, where he provides a wide range of treatments for cardiovascular disease, arrhythmias, heart failure, peripheral artery disease, and venous disease. He also offers coronary artery intervention and structural heart intervention, as well as heart disease prevention services.

Dr. Gaglani is board certified in interventional/general cardiology, echocardiography, cardiac nuclear medicine, and vascular imaging. His expertise in vascular disease also allows him to treat peripheral arterial/venous disease, including non-healing ulcers and wounds of the lower extremities, as well as stenosis of the carotid vessels, radial approach angiography, structural heart disease, high-risk PCI, and vein ablations.

To schedule an appointment at the office of Rahul Gaglani, MD, call the office or book a consultation online.

Practice
Core Cardiology
Latest Review
“Doctor Gaglani is very knowledgeable and through. He took the time to explain my health situation in a way that I could easily comprehend. He came across as a warm and caring person. ”
Dr. Rahul Gaglani, MD

Dr. Rahul Gaglani, MD

Internist

25395 Hancock Ave
Suite 230
Murrieta, CA 92562

5.0 (3)
Elie Ghasb, MD
5.0
(2)
Elie Ghasb, MD Internist
40.5 mi
5.0 (2)
25395 Hancock Ave Ste 240
Murrieta, CA 92562
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About Elie Ghasb, MD
Meet Elie Ghasb, M.D. Dr. Elie Ghasb is a dedicated Internal Medicine physician committed to providing compassionate, patient-centered care to our community. He graduated from the University of California, Riverside School of Medicine, and completed his training at Riverside University Health System, where he honed his clinical expertise and passion for improving community health. Dr. Ghasb brings a holistic approach to medicine, emphasizing healthy habits, active listening, and personalized treatment plans. His care philosophy centers around treating each patient as a whole person, not just addressing symptoms. Dr. Ghasb's research contributions, volunteer work at free clinics, and mentorship of medical students underscore his dedication to advancing healthcare and fostering trust with his patients. As a physician deeply rooted in the community, he is committed to building lasting relationships with his patients and their families.
Practice
Ghasb Internal Medicine, Primary & Preventative Care
Latest Review
“Best primary doctor ever I recommend him for the families 👍”
Elie Ghasb, MD

Elie Ghasb, MD

Internist

25395 Hancock Ave Ste 240
Murrieta, CA 92562

5.0 (2)
Sooraj Shah
4.95
(275)
Sooraj Shah Cardiovascular Disease Physician
41.7 mi
4.95 (275)
1640 Newport Blvd Suite 445
Costa Mesa, CA 92627
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Latest Review
“Dr. Shah is always so patient and kind. He is very thorough and takes the time to explain things. Very satisfied with Dr. Shah and his staff.”
Sooraj Shah

Sooraj Shah

Internist

1640 Newport Blvd Suite 445
Costa Mesa, CA 92627

4.95 (275)
Healthcare specialist
Dr. Sima Mirhashemi, DO Internist
42.3 mi
1501 Superior Avenue, Suite 304
Newport Beach, CA 92663
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Dr. Sima Mirhashemi, DO

Internist

1501 Superior Avenue, Suite 304
Newport Beach, CA 92663

Healthcare specialist
4.9
(110)
Dr. Joseph Mardanzai, MD Internist
42.8 mi
4.9 (110)
27184 Ortega Hwy
Suite 104
San Juan Capistrano, CA 92675
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About Dr. Joseph Mardanzai, MD

About Prestige Medicine

Prestige Med offers the latest in aesthetics and anti-aging, for San Ramon, San Jose, and San Juan Capistrano, CA. We provide safe and effective treatments using the latest technology, with limited downtime.

Dr. Mardanzai's background consists of over 20 years as a procedurist in various settings. Most notably, he has worked in wound care specialty as the previous Medical Director of the San Ramon Regional Multispecialty Advanced Wound Center, before pursuing a fellowship in facial aesthetics. He is dual board-certified with ABIM and the American Aesthetic Association.

Our mission is to rejuvenate every patient, and help them reach their most youthful and vibrant self. Your care will be provided by our expert physician and our master nurse injector. Our services range from minimally invasive to more vigorous procedures, and are designed to help you feel and look your best.

Call us to make an appointment!

 

Practice
Prestige Med
Latest Review
“Excellent”

Dr. Joseph Mardanzai, MD

Internist

27184 Ortega Hwy
Suite 104
San Juan Capistrano, CA 92675

4.9 (110)
Healthcare specialist
Brittney Brown, DO Internist
42.9 mi
16209 Paramount Blvd
Paramount, CA 90723
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Brittney Brown, DO

Internist

16209 Paramount Blvd
Paramount, CA 90723

Dr. Adrienne Oconnell, do
5.0
(14)
Dr. Adrienne Oconnell, do Internist
43.3 mi
5.0 (14)
610 N Coast Hwy
Suite 208
Laguna Beach, CA 92651
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About Dr. Adrienne Oconnell, do

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.


Book Your Appointment

Practice
Laguna Beach Aesthetics
Latest Review
“Great care and personal attention.”
Dr. Adrienne Oconnell, do

Dr. Adrienne Oconnell, do

Internist

610 N Coast Hwy
Suite 208
Laguna Beach, CA 92651

5.0 (14)
Dr. Richard Lam, MD
Dr. Richard Lam, MD Internist
43.7 mi
41900 Winchester Road
Suite 100
Temecula, CA 92590
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About Dr. Richard Lam, MD

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.

Practice
Richard C Lam MD & Associates
Dr. Richard Lam, MD

Dr. Richard Lam, MD

Internist

41900 Winchester Road
Suite 100
Temecula, CA 92590

Healthcare specialist
4.97
(48)
Harut Hovsepyan, MD, MPH Addiction Medicine Physician
44.1 mi
4.97 (48)
1809 Verdugo Blvd
Suite 260
Glendale, CA 91208
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Latest Review
“Dr. Hovsepyan and his staff are extremely knowledgeable and professional . They are kind and attentive and made me feel at ease throughout my visits. I highly recommend them! ”

Harut Hovsepyan, MD, MPH

Internist

1809 Verdugo Blvd
Suite 260
Glendale, CA 91208

4.97 (48)
Healthcare specialist
James Pearson, md Adult Medicine Physician
44.2 mi
1600 Pacific Coast Hwy
Seal Beach, CA 90740
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James Pearson, md

Internist

1600 Pacific Coast Hwy
Seal Beach, CA 90740

Healthcare specialist
Dr. Janne Dewing, MD Internist
44.4 mi
31862 Coast Hwy
Suite #200
Laguna Beach, CA 92651
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About Dr. Janne Dewing, MD

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.

Practice
Dr. Janne

Dr. Janne Dewing, MD

Internist

31862 Coast Hwy
Suite #200
Laguna Beach, CA 92651

Healthcare specialist
4.71
(598)
Dr. Daniel Brelian, MD Internist
45.0 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
Ki Cho, MD Internist
48.6 mi
3130 West Olympic Boulevard Ste 230
Los Angeles, CA 90006
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Ki Cho, MD

Internist

3130 West Olympic Boulevard Ste 230
Los Angeles, CA 90006