Best Cardiologists in Los Alamitos
Heallexa lists 19+ verified cardiologists in Los Alamitos, . Compare credentials, listed insurance, and patient reviews side by side — free, no signup.
19 cardiologists in Los Alamitos

Mark John Castellanet, MD
4.5Mark John Castellanet · Cardiovascular Disease Physician
3801 Katella Ave(562) 598-3200
John P Cole MD Inc.
4.5John P Cole MD Inc. · Cardiovascular Disease Physician
3801 Katella Avenue #416(562) 799-3630
Adrian Harry Shandling, MD
4.5Adrian Harry Shandling · Cardiovascular Disease Physician
3801 Katella Ave(562) 598-3200
Steven T. Forman, MD
4.5Steven T. Forman · Interventional Cardiology Physician
5300 Katella Ave(562) 430-7533
Bret A. Witter, MD
4.5Bret A. Witter · Cardiovascular Disease Physician
5300 Katella Ave(562) 430-7533
Cardiovascular Care Inc.
4.5Cardiovascular Care Inc. · Cardiovascular Disease Physician
3801 Katella Avenue(562) 598-3200
Stuart Fischer, MD
4.5Stuart Fischer · Interventional Cardiology Physician
5300 Katella Ave(562) 430-7533
Alma Care Health Group
4.5Alma Care Health Group · Cardiovascular Disease Physician
11278 Los Alamitos Blvd(562) 256-6481
Watson A Desa, MD
4.5Watson A Desa · Interventional Cardiology Physician
3851 Katella Ave Suite 305(562) 594-6080
Rex J. Winters,MD ;Inc.
4.5Rex J. Winters,MD ;Inc. · Cardiovascular Disease Physician
3751 Katella Ave(562) 598-1311
Bruce Edwin Vannatta, MD
4.5Bruce Edwin Vannatta · Interventional Cardiology Physician
3801 Katella Ave(562) 598-3200
Abolhoda MD, Inc.
4.5Abolhoda MD, Inc. · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
3801 Katella Ave(562) 598-9745
Adrian Harry Shandling, MD
4.5Adrian Harry Shandling · Cardiovascular Disease Physician
3801 Katella Ave(562) 598-3200

Mark John Castellanet, MD
4.5Mark John Castellanet · Cardiovascular Disease Physician
3801 Katella Ave(562) 598-3200
Added Access Cardiology Inc.
4.5Added Access Cardiology Inc. · Cardiovascular Disease Physician
3801 Katella Ave Suite 401(562) 708-7030
Bruce Edwin Vannatta, MD
4.5Bruce Edwin Vannatta · Interventional Cardiology Physician
3801 Katella Ave(562) 598-3200
Omid Vahdat MD Inc.
4.5Omid Vahdat MD Inc. · Interventional Cardiology Physician
3801 Katella Ave(562) 598-0604
Timothy F. O'Neill, MD
4.5Timothy F. O'Neill · Cardiovascular Disease Physician
5300 Katella Ave(562) 430-7533
Cardiologists in Los Alamitos by insurance
These providers list this insurance as accepted, but coverage should be confirmed directly with the provider before booking.
Cardiologists in nearby cities
Same specialty in cities near Los Alamitos — useful if your insurance network extends across the metro.
About finding a cardiologist in Los Alamitos
Los Alamitos has cardiologists practicing across hospital systems, group practices, and independent clinics. When choosing a cardiologist in Los Alamitos, the three factors most patients care about are: insurance acceptance, distance from home or work, and patient reviews. Heallexa shows all three on every listing so you can compare without clicking back and forth.
Many Los Alamitos cardiologists list major insurance plans including Blue Cross Blue Shield, Aetna, UnitedHealthcare, Cigna, Humana, and Medicare. Listings reflect what providers have indicated they accept — always confirm in-network status directly with the office before booking. Out-of-network visits can cost 3–5× more than in-network ones.
Common questions about cardiologists in Los Alamitos
How do I find the highest-rated cardiologist in Los Alamitos?+
Sort the list above by rating. Heallexa surfaces verified patient reviews alongside credentials so you can see whether a provider's strengths match what you actually need.
What if no Los Alamitos cardiologists accept my insurance?+
Try the surrounding metro — insurance networks often extend across multiple cities. The nearby-cities links below open the same specialty in adjacent markets. Always confirm coverage directly with the provider.
Are walk-in visits available with Los Alamitos cardiologists?+
Walk-ins are uncommon for most cardiologists. The "available today" filter shows providers with open same-day slots.
How often is this Los Alamitos list updated?+
Heallexa refreshes provider data from public NPI records and license databases on a rolling basis. Listings that fall out of the active registry are removed automatically.