Carol Madellaine Marquez, MD
Carol Madellaine Marquez is a Radiation Oncology Radiology specialist based in Stanford, CA with over 39 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Carol Madellaine Marquez, MD has been part of the Stanford medical community since 2006 in group practice. She graduated from University of California, San Francisco School of Medicine in 1987 and has 39+ years of clinical experience. She regularly sees Medicare patients with cancer, high cholesterol, and hypertension (per CMS claims data).
Older · 3975dNPPES updated 2015-07-06 · verify NPI on CMS · Verify license at Medical Board of California
How Does This Doctor Compare?
Medicare Patients
408
Unique beneficiaries
Standard volumePrescription Recipients
51
Patients prescribed
Prescriptions Written
85
Total claims
Total Medicare drug cost: $3k
Data 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 Cancer, High Cholesterol, and Hypertension.
Diseases involving abnormal cell growth with potential to spread to other body parts
Elevated cholesterol or triglycerides that increase heart disease risk
High blood pressure — a leading risk factor for heart disease and stroke
Joint inflammation causing pain, swelling, and stiffness
Weakened bones that are more prone to fractures, common in older adults
A condition where the body cannot properly regulate blood sugar levels
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
Excessive worry or fear that interferes with daily life
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1987
University of California, San Francisco School of Medicine
39 years in practice
Senior practitioner
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
Taxonomy: 2085R0001X
Education & Training
University of California, San Francisco School of Medicine (Class of 1987)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 200034
View hospital on Medicare Care CompareVirtual Radiation Oncology Care With Carol Madellaine Marquez
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Carol Madellaine Marquez for follow-up consultations, cholesterol management, blood pressure monitoring — no travel to Stanford 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 Carol Madellaine Marquez
NPI records show Dr. Marquez as active with telehealth listed in Stanford, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (650) 723-4000.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact Carol Madellaine Marquez
Practice Location
300 Pasteur Dr, Stanford, CA 94305-2200
Mailing Address
300 Pasteur Dr, Stanford, CA 94305-2200
This is a provider directory. Contact the office directly to schedule appointments.
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