53 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Lemire, Thoracic Surgeon in Los Alamitos, CA?
Dr. Guy Lemire, MD is a Thoracic Surgeon, who primarily practices in Los Alamitos, CA with 1 additional practice location. He has been practicing for over 53 years and is board certified. Dr. Lemire completed his residency at McGill University. He is a member of the MemorialCare Physician Society, The Society of Thoracic Surgeons, and Royal College of Physicians and Surgeons of Canada. Dr. Lemire is fluent in English, French, and Spanish, and is currently seeing new patients. Dr. Lemire’s practice accepts Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Lemire’s office at (216) 518-8456.
Where did Dr. Lemire go to medical school and complete their residency?
Residency: McGill University
Medical School: University Laval Fac De Medicine | Universite Laval, Faculte De Medecine
Is Dr. Lemire board certified as a Thoracic Surgeon?
Yes, Dr. Guy Lemire, MD is board certified by the American Board of Thoracic Surgery
What languages does Dr. Lemire speak?
Dr. Lemire and their clinical team can communicate with patients in the following languages:
English
French
Spanish
What conditions does Dr. Lemire treat?
As a Thoracic Surgeon, Dr. Lemire 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. Lemire. 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:
- Coronary Artery Disease with Angina
- Hardening of the Arteries in the Heart without Chest Pain
- Unstable Angina
- Atherosclerosis
- Coronary Artery Disease
- Atherosclerotic Heart Disease with Angina
- Chest Pain from Heart Disease
- Angina Pectoris
- Silent Coronary Artery Disease
- Asymptomatic Atherosclerosis
- Unstable Chest Pain
- Acute Coronary Syndrome
- Atherosclerotic Heart Disease with Unstable Angina
ICD-10 Codes:
- I25119: Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris
- I2510: Atherosclerotic heart disease of native coronary artery without angina pectoris
- I25110: Atherosclerotic heart disease of native coronary artery with unstable angina pectoris
Also known as:
- Narrowed Aortic Valve
- Aortic Valve Insufficiency
- Heart Valve Disease
- Aortic Valve Stenosis
- Tight Aortic Valve
- Leaky aortic valve
- Aortic regurgitation
ICD-10 Codes:
- I350: Nonrheumatic aortic (valve) stenosis
- I351: Nonrheumatic aortic (valve) insufficiency
Also known as:
- Heart Attack
- Myocardial Infarction
- Acute MI
- Cardiac Arrest
ICD-10 Codes:
- I219: Acute myocardial infarction, unspecified
What procedures does Dr. Lemire perform?
As a Thoracic Surgeon, Dr. Lemire performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Lemire. 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:
- Coronary Artery Bypass Graft (CABG)
- Coronary Artery Bypass Surgery
- Heart bypass surgery
- CABG surgery
- Arterial bypass graft
CPT Codes:
- 33533: Coronary artery bypass, using arterial graft(s); single arterial graft
Also known as:
- Endoscopic Vein Harvest for Bypass
- Endoscopy
- Video-Assisted Vein Harvest
- Minimally Invasive Vein Removal
- Endoscopic Saphenous Vein Harvest
- Vein Harvesting for CABG
CPT Codes:
- 33508: Endoscopy, surgical, including video-assisted harvest of vein(s) for coronary artery bypass procedure (List separately in addition to code for primary procedure)
Also known as:
- Coronary Artery Bypass Graft (CABG) with 2 Vein Grafts
- Coronary Artery Bypass Graft (CABG)
- Coronary Artery Bypass Surgery
- CABG surgery
- Heart bypass with vein grafts
- Coronary revascularization
- Heart Bypass Surgery
- CABG Surgery
- Open Heart Bypass
CPT Codes:
- 33518: Coronary artery bypass, using venous graft(s) and arterial graft(s); 2 venous grafts (List separately in addition to code for primary procedure)
- 33517: Coronary artery bypass, using venous graft(s) and arterial graft(s); single vein graft (List separately in addition to code for primary procedure)
Also known as:
- Open Aortic Valve Replacement (Prosthetic Valve)
- Surgical Aortic Valve Replacement
- Open Heart Aortic Valve Surgery
- Prosthetic Aortic Valve Implantation
CPT Codes:
- 33405: Replacement, aortic valve, open, with cardiopulmonary bypass; with prosthetic valve other than homograft or stentless valve
Also known as:
- Triple Bypass Surgery (Additional Grafts)
- Coronary Artery Bypass Surgery
- CABG (Coronary Artery Bypass Graft)
- Heart Bypass Surgery
- Coronary Revascularization
CPT Codes:
- 33519: Coronary artery bypass, using venous graft(s) and arterial graft(s); 3 venous grafts (List separately in addition to code for primary procedure)
Also known as:
- Left Atrial Appendage Closure (Open Heart)
- LAA Exclusion Surgery
- Left Atrial Appendage Ligation
- Open Heart LAA Closure
CPT Codes:
- 33268: Exclusion of left atrial appendage, open, performed at the time of other sternotomy or thoracotomy procedure(s), any method (eg, excision, isolation via stapling, oversewing, ligation, plication, clip) (List separately in addition to code for primary procedure)
Also known as:
- Open Breastbone Fracture Repair
- Sternum Fracture Surgery
- Breastbone Fixation
- Open Chest Bone Repair
CPT Codes:
- 21825: Open treatment of sternum fracture with or without skeletal fixation
Does Dr. Lemire accept my insurance?
Dr. Lemire accepts most major insurance plans. Important: Please call our office at (216) 518-8456 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Lemire accept in Los Alamitos, CA?
Dr. Lemire 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 Shield of California
Centene
Conifer Health Solutions
Crown Cork and Seal Company
Elevance Health Inc. (formerly Anthem)
HealthSmart
Medicaid
Medicare
Mohawk Industries
View All Insurances
Where is Dr. Lemire's office located?
Dr. Guy Lemire's Primary Practice
5122 Katella Ave Ste 102
Los Alamitos, CA 90720
(216) 518-8456
Recognitions
Memberships & Associations
MemorialCare Physician Society
Member
The Society of Thoracic Surgeons
Member
Royal College of Physicians and Surgeons of Canada
Fellow
What is Dr. Lemire's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Lemire's National Provider Identifier (NPI) number is 1689632614.
What common questions do patients ask about Dr. Lemire?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Lemire
What is Dr. Guy Lemire's specialty?
Dr. Lemire is a Thoracic Surgeon near Los Alamitos, CA. A thoracic surgeon is a healthcare expert with specialization in the surgical, perioperative, and critical care of patients with conditions affecting the chest. Their expertise encompasses the surgical treatment of coronary artery disease, lung, esophageal, and chest wall cancers, tracheal abnormalities, and issues with the great vessels and heart valves. They also address congenital anomalies, mediastinal tumors, and diaphragm diseases. Additionally, thoracic surgeons manage airway issues and chest injuries as part of their medical specialty. Contact Dr. Lemire to book an appointment today.
Is this Dr. Guy Lemire affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Lemire is affiliated with Dignity Health - St. Mary Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They 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 Thoracic Surgeon?
Explore Thoracic Surgeon 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 Guy Lemire accepting new patients in Los Alamitos, CA?
Yes, Dr. Guy Lemire is accepting new patients at this time.
Does Dr. Guy Lemire offer online booking?
Please contact Dr. Lemire's office at (216) 518-8456 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Guy Lemire?
Please contact Dr. Lemire's office at (216) 518-8456 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Guy Lemire have?
Dr. Guy Lemire is certified by the American Board of Thoracic Surgery.
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