J Thorac Cardiovasc Surg
Dr. Guy Gerard Lemire, MD
- Medicare services, 2024
- 27
- Medicare patients, 2024
- 16
- Publications
- 14
- Industry payments
- $1,454
- Affiliated sites
- 1
- Practice address
- 1050 Linden Ave, Long Beach, CA 90813
- Practice phone
- Call (562) 531-2550
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCI Health - Lakewood
Long Beach, California
Find Dr. Lemire's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Guy Gerard Lemire is a cardiothoracic surgeon in Long Beach, California
Dr. Lemire practices at UCI Health - Lakewood in Long Beach, California.
Dr. Lemire's NPI, 1689632614, was assigned on May 1, 2006. Dr. Lemire graduated from University of Laval Faculty of Medicine in 1967. Dr. Lemire holds California license A31562.
- NPI
- 1689632614NPI Registry (opens in a new tab)
- NPI enumeration date
- May 1, 2006
- NPI status
- Active
- Practice phone
- (562) 531-2550
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 85
- Medical school graduation
- 1967
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Guy Gerard Lemire practices at UCI Health - Lakewood in Long Beach, California
Dr. Lemire's primary practice is UCI Health - Lakewood, at 1050 Linden Ave, Long Beach, CA 90813 in Los Angeles County. The practice phone is (562) 531-2550.
- UCI Health - Lakewood1050 Linden Ave, Long Beach, CA 90813 · Los Angeles CountyPhone(562) 531-2550
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Guy Gerard Lemire is affiliated with 2 sites of care
Dr. Lemire's primary practice is UCI Health - Lakewood in Long Beach, California. Dmand AI also links Dr. Lemire to 1 physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Guy Gerard Lemire's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lemire practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCI Health - Lakewood | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Guy Gerard Lemire is one of 568 cardiothoracic surgeons in California
Thoracic surgery (cardiothoracic vascular surgery) is Dr. Lemire's primary specialty in the NPI Registry, under taxonomy code 208G00000X. Dr. Lemire is board certified in cvt surgery by the ROYAL COLLEGE OF PHYSICIANS & SURGEONS(C). Dmand AI has Dr. Lemire's licenses on file in 15 states: California, South Dakota, Arkansas, South Carolina, Georgia, Maine, North Carolina, North Dakota, Oklahoma, Tennessee, Texas, Wyoming, Alabama, Indiana and Utah.
Specialties and state licenses
- Thoracic surgery (cardiothoracic vascular surgery), CaliforniaPrimary
- South Dakota license
- Arkansas license
- South Carolina license
- Georgia license
- Maine license
- North Carolina license
- North Dakota license
- Oklahoma license
- Tennessee license
- Texas license
- Wyoming license
- Alabama license
- Indiana license
- Utah license
Cardiothoracic surgeons near Dr. Lemire
Counts of cardiothoracic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Guy Gerard Lemire billed Medicare for 27 services in 2024
CMS data shows 27 Medicare services from Dr. Lemire across 2 procedure codes in 2024, for 16 Medicare patients. Medicare paid $4,199 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lemire's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 332024: 2718%
Dr. Lemire compared with the California median for cardiothoracic surgeons, 2024
- Dr. Lemire
- California median
- Medicare services
- 27vs 11476% below
- Medicare patients
- 16vs 9583% below
Medians across 453 cardiothoracic surgeons in California with Dmand AI profiles that report each measure.
Dr. Lemire's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Lemire?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lemire and other cardiothoracic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Guy Gerard Lemire treated 16 Medicare patients in 2024, average age 72
CMS counts 16 Medicare patients who saw Dr. Lemire in 2024. The largest group is 85 and over, with 0 patients. 75% of them have diabetes, and 75% have heart failure. Their average risk score is 2.29, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Lemire's median patient age at 62, with 0% women.
Dr. Lemire's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Lemire's Medicare patients, 2024
- Diabetes75%
- Heart failure75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lemire's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women0%
- Men100%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
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Dr. Guy Gerard Lemire has 14 publications on record
Dmand AI links 14 papers to Dr. Lemire. The most frequent topics are Cattle, Dogs and Postoperative Complications. Dr. Lemire has published most often in Can J Surg. Dr. Lemire's most frequent co-author is Judith L. Trudel, MD.
Topics Dr. Lemire writes about most
- Cattle
- Dogs
- Postoperative Complications
- Transplantation, Homologous
- Angiography
- Aorta, Abdominal
- Blood Pressure
- Blood Vessel Prosthesis
Dr. Lemire's most frequent co-authors
Recent publications by Dr. Lemire
J Cardiovasc Surg (Torino)
Can J Surg
See who Dr. Lemire researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Lemire works with, so you can find a warm path to the right cardiothoracic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Guy Gerard Lemire received $1,454 in industry payments from 2016 to 2023
CMS Open Payments shows 15 general payments to Dr. Lemire from 10 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 98% of the total. Edwards Lifesciences Corporation paid the most, $331.
General payments to Dr. Lemire by program year, 2016 to 2023
General payments to Dr. Lemire by kind, 2016 to 2023
- Food and beverage$1,42498%
- Education$302%
Companies that paid Dr. Lemire the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Guy Gerard Lemire has 1 award and honors on record
Dmand AI lists 1 award for Dr. Lemire.
Awards and honors for Dr. Lemire
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Guy Gerard Lemire graduated from University of Laval Faculty of Medicine
Dr. Lemire graduated from University of Laval Faculty of Medicine in 1967. Dr. Lemire is a member of ACS, Royal College of Physicians and Surgeons of Canada and STS.
- Medical school
- Board certified in cvt surgery
Source: Dmand AI Professional Profile Data
Dr. Guy Gerard Lemire accepts plans from 9 insurance carriers
Dr. Lemire is in network with 9 carriers, including United Healthcare, Elevance and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- United Healthcare
- Elevance
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- Regence Health Plans
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- +1 more carriersWith a free account
Plan types Dr. Lemire accepts, by number of carriers
- Medicare6
- PPO6
- EPO2
- HMO2
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Guy Gerard Lemire's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Guy Gerard Lemire
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Guy Gerard Lemire's NPI number?
Dr. Guy Gerard Lemire's NPI number is 1689632614. It was assigned on May 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Guy Gerard Lemire?
Dr. Guy Gerard Lemire is a cardiothoracic surgeon in Long Beach, California. The primary specialty in the NPI Registry is Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (taxonomy code 208G00000X).
Where does Dr. Guy Gerard Lemire practice?
Dr. Lemire practices at 1050 Linden Ave, Long Beach, CA 90813. Dr. Lemire's primary practice is UCI Health - Lakewood in Long Beach, California. Dmand AI also links Dr. Lemire to 1 physician office.
What is Dr. Guy Gerard Lemire's office phone number?
The practice phone on file for Dr. Lemire is (562) 531-2550.
What is Dr. Guy Gerard Lemire's medical license number?
Dr. Lemire holds California license A31562, one of the licenses on file in 15 states.
Which states has Dr. Guy Gerard Lemire been licensed in?
Dmand AI has state licenses on file for Dr. Lemire in California (1996 to 2026), South Dakota, Arkansas (2009 to 2027), South Carolina (2012 to 2027), Georgia (2008 to 2026), Maine (2007 to 2026), North Carolina (2012 to 2026), North Dakota (2012 to 2026), Oklahoma (2008 to 2026), Tennessee (2009 to 2026), Texas (2011 to 2026), Wyoming (2008 to 2026), Alabama (2011 to 2025), Indiana (2007 to 2025) and Utah (2007 to 2024).
Does Dr. Guy Gerard Lemire accept Medicare?
Yes. CMS data shows Dr. Lemire billed Medicare for 27 services in 2024.
How many Medicare patients does Dr. Guy Gerard Lemire see?
CMS counts 16 Medicare patients who saw Dr. Lemire in 2024, with an average age of 72.
Is Dr. Guy Gerard Lemire board certified?
Yes. Dr. Lemire is board certified in cvt surgery by the ROYAL COLLEGE OF PHYSICIANS & SURGEONS(C).
What services does Dr. Guy Gerard Lemire bill to Medicare?
In 2024, Dr. Lemire's most billed Medicare services were surgery: heart and blood vessels (33533) and surgery: heart and blood vessels (33518).
Show 6 more questionsShow fewer questions
Where did Dr. Guy Gerard Lemire go to medical school?
Dr. Lemire graduated from University of Laval Faculty of Medicine in 1967.
Has Dr. Guy Gerard Lemire received payments from drug or device companies?
CMS Open Payments shows $1,454 in general payments to Dr. Lemire from 10 companies from 2016 to 2023. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. Guy Gerard Lemire been practicing?
Dr. Lemire graduated from medical school in 1967, 59 years ago.
Does Dr. Guy Gerard Lemire do research?
Dmand AI links 14 publications to Dr. Lemire.
Who does Dr. Guy Gerard Lemire publish with?
Dr. Lemire's most frequent co-authors are Judith L. Trudel, MD (2 shared papers).
What insurance does Dr. Guy Gerard Lemire accept?
Dr. Lemire is in network with 9 carriers, including United Healthcare, Elevance and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
Selling to thoracic surgery (cardiothoracic vascular surgery) practices?
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