Mark William Onaitis, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Mark William Onaitis, MD has practiced thoracic surgery (cardiothoracic vascular surgery) for 29+ years, working in group practice. He graduated from Duke University School of Medicine in 1997 and has 29+ years of clinical experience. He regularly sees Medicare patients with hypertension, high cholesterol, and cancer (per CMS claims data).
Older · 2631dNPPES updated 2019-02-21 · verify on CMS
Contact & Location
Practice Location
200 W Arbor Dr, San Diego, CA 92103-9000
How Does This Doctor Compare?
Medicare Patients
105
Unique beneficiaries
Standard volumeData Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Cancer.
High blood pressure — a leading risk factor for heart disease and stroke
Elevated cholesterol or triglycerides that increase heart disease risk
Diseases involving abnormal cell growth with potential to spread to other body parts
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
Joint inflammation causing pain, swelling, and stiffness
Chronic Obstructive Pulmonary Disease — a group of lung diseases that block airflow
A condition where the body cannot properly regulate blood sugar levels
Excessive worry or fear that interferes with daily life
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$36.3k received from industry
19 transactions reported in 2024 ·Very High tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Mark William Onaitis's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1997
Duke University School of Medicine
29 years in practice
Experienced
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.
Taxonomy: 208G00000X
Education & Training
Duke University School of Medicine (Class of 1997)
Mailing address
Po Box 232410, San Diego, CA 92193-2410
Differs from practice location
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 190008
View hospital on Medicare Care CompareVirtual Thoracic Surgery (Cardiothoracic Vascular Surgery) Care With Mark William Onaitis
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Mark William Onaitis for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to San Diego required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Mark William Onaitis
NPI records show Dr. Onaitis as active with telehealth listed in San Diego, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (858) 657-7777.
Sourced from CMS NPPES · OIG LEIE · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Mark William Onaitis
Practice Location
200 W Arbor Dr, San Diego, CA 92103-9000
Mailing Address
Po Box 232410, San Diego, CA 92193-2410
This is a provider directory. Contact the office directly to schedule appointments.
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