Accepting patients
Who is Dr. O'neill, Cardiologist in Los Alamitos, CA?
Dr. Timothy O'neill, MD is a Cardiologist, who primarily practices in Los Alamitos, CA. He is board certified by the American Board of Internal Medicine. Dr. O'neill graduated from University of New Mexico School of Medicine and completed his residency at University of California, Irvine Affiliated Hospitals. Dr. O'neill is fluent in English and Spanish, and is currently seeing new patients. Dr. O'neill’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. O'neill’s office at (562) 430-7533.
Where did Dr. O'neill go to medical school and complete their residency?
Fellowship: University of California - Irvine M.C. | Long Beach Memorial Medical Center | UC Irvine Medical Center
Residency: University of California, Irvine Affiliated Hospitals | UC Irvine Medical Center
Medical School: University of New Mexico School of Medicine
Is Dr. O'neill board certified in Cardiologist?
Yes, Dr. Timothy O'neill, MD is board certified by the American Board of Internal Medicine
What languages does Dr. O'neill speak?
Dr. O'neill and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. O'neill treat?
As a Cardiologist, Dr. O'neill diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. O'neill. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Pre-Procedure Heart Examination
- Pre-Surgery Cardiac Checkup
- Heart Health Assessment (Before Procedure)
- Cardiovascular Clearance Exam
ICD-10 Codes:
- Z01810: Encounter for preprocedural cardiovascular examination
Also known as:
- Atrial Fibrillation
- Heart Palpitations
- Arrhythmia
- Afib
- A-fib
- Irregular heart rhythm
- Skipped Heartbeat
- Fluttering Heart
- Pounding Heart
ICD-10 Codes:
- I4891: Unspecified atrial fibrillation
- I480: Paroxysmal atrial fibrillation
- R002: Palpitations
Also known as:
- Leaky Mitral Valve
- Aortic Valve Insufficiency
- Narrowed Aortic Valve
- Heart Valve Disease
- Mitral Valve Insufficiency
- Mitral Regurgitation
- Leaky aortic valve
- Aortic regurgitation
- Aortic Valve Stenosis
- Tight Aortic Valve
ICD-10 Codes:
- I340: Nonrheumatic mitral (valve) insufficiency
- I351: Nonrheumatic aortic (valve) insufficiency
- I350: Nonrheumatic aortic (valve) stenosis
Also known as:
- Chest Pain
- Precordial pain
- Chest discomfort
- Thoracic pain
- Upper body pain
ICD-10 Codes:
- R072: Precordial pain
- R079: Chest pain, unspecified
Also known as:
- Low Potassium
- Low Sodium Levels
- Dehydration
- Fluid and Electrolyte Balance
- Potassium
- Sodium
- Hypokalemia
- Potassium Deficiency
- Hyponatremia
- Low Blood Sodium
- Sodium Deficiency
- Lack of Fluids
- Fluid Loss
- Body Water Depletion
ICD-10 Codes:
- E876: Hypokalemia
- E871: Hypo-osmolality and hyponatremia
- E860: Dehydration
Also known as:
- Hardening of the Arteries in the Heart without Chest Pain
- Atherosclerosis
- Coronary Artery Disease
- Silent Coronary Artery Disease
- Asymptomatic Atherosclerosis
ICD-10 Codes:
- I2510: Atherosclerotic heart disease of native coronary artery without angina pectoris
Also known as:
- Shortness of Breath
- Breathing Problems
- Dyspnea
- Difficulty breathing
- Breathlessness
ICD-10 Codes:
- R0609: Other forms of dyspnea
Also known as:
- Fainting
- Syncope
- Passing out
- Collapse
ICD-10 Codes:
- R55: Syncope and collapse
Also known as:
- Ischemic Stroke
- Brain Attack
- Cerebral Infarction
- Brain Ischemia
ICD-10 Codes:
- I639: Cerebral infarction, unspecified
Also known as:
- Dizziness
- Dizziness and Vertigo
- Lightheadedness
- Giddiness
- Vertigo
ICD-10 Codes:
- R42: Dizziness and giddiness
Also known as:
- Diastolic Heart Failure
- Heart Failure
- Heart Failure with Preserved Ejection Fraction
- HFpEF
- Filling Heart Failure
ICD-10 Codes:
- I5030: Unspecified diastolic (congestive) heart failure
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Pectoral pain
ICD-10 Codes:
- R0789: Other chest pain
Which procedures does Dr. O'neill perform as a Cardiologist?
As a Cardiologist, procedures performed by a Dr. Timothy O'neill may include:
- Absent Pulmonary Valve Repair
- Anomalous Coronary Artery Angiography
- Anticoagulation Management
- Aortic Stenosis Repair
- Aortic Valve Repair / Replacement
- Aortopulmonary Window Repair
- Arterial Doppler
- Balloon Septostomy
For detailed information, please contact Dr. O'neill's office.
Does Dr. O'neill accept my insurance?
Dr. O'neill accepts most major insurance plans. Important: Please call our office at (562) 430-7533 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. O'neill accept in Los Alamitos, CA?
Dr. O'neill in Los Alamitos, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Cross Blue Shield of Michigan
Conifer Health Solutions
Humana
Medicare
View All Insurances
Where is Dr. O'neill's office located?
Dr. Timothy O'neill's Primary Practice
5300 Katella Ave
Los Alamitos, CA 90720
(562) 430-7533
What is Dr. O'neill's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. O'neill's National Provider Identifier (NPI) number is 1467493155.
What common questions do patients ask about Dr. O'neill?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. O'neill
What is Dr. Timothy O'neill's specialty?
Dr. O'neill is a Cardiologist near Los Alamitos, CA. An internist specializing in cardiovascular diseases focuses on the diagnosis and management of complex heart and blood vessel conditions, including heart attacks and life-threatening arrhythmias. Contact Dr. O'neill to book an appointment today.
Is this Dr. Timothy O'neill affiliated with a ranked Castle Connolly Top Hospital?
No, O'neill is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Uci Health - Los Alamitos. Castle Connolly Top Hospitals are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Cardiologist?
Explore Cardiologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Timothy O'neill accepting new patients in Los Alamitos, CA?
Yes, Dr. Timothy O'neill is accepting new patients at this time.
Does Dr. Timothy O'neill offer online booking?
Please contact Dr. O'neill's office at (562) 430-7533 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Timothy O'neill?
Please contact Dr. O'neill's office at (562) 430-7533 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Timothy O'neill have?
Dr. Timothy O'neill is certified by the American Board of Internal Medicine.
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