Dr. Marcus Chen, MD, FACP
Chief Medical Reviewer · HealthCalculator
Background
Dr. Marcus Chen is the Chief Medical Reviewer at HealthCalculator, where he reviews every health-related calculator, article, and tool for clinical accuracy. He is board-certified in Internal Medicine and is a Fellow of the American College of Physicians (FACP), a distinction awarded to physicians who have demonstrated commitment to the medical profession through excellence in patient care, education, and research.
Dr. Chen spent 18 years on staff at the Mayo Clinic (Rochester, MN) in the Division of General Internal Medicine (2005-2023), where he specialized in preventive cardiology, weight management, and chronic disease prevention. He has authored or co-authored 42 peer-reviewed articles, with citations in the New England Journal of Medicine, JAMA Internal Medicine, and the Annals of Internal Medicine.
Dr. Chen completed his medical degree at Johns Hopkins University School of Medicine (2001), internal medicine residency at Mayo Clinic (2004), and a clinical research fellowship in cardiovascular epidemiology at the Johns Hopkins Bloomberg School of Public Health (2005).
Specialties
- Body Mass Index (BMI) and obesity risk stratification
- Cardiovascular risk assessment (ASCVD, Framingham)
- Diabetes risk and HbA1c interpretation
- Blood pressure categories and hypertension management
- Cholesterol panel interpretation (LDL, HDL, triglycerides)
- Caloric needs and weight management
Credentials & Verifications
- M.D. — Johns Hopkins University School of Medicine (2001)
- Internal Medicine Residency — Mayo Clinic (2004)
- Cardiovascular Epidemiology Fellowship — Johns Hopkins Bloomberg School of Public Health (2005)
- Board Certification — American Board of Internal Medicine (recertified 2023)
- Fellow (FACP) — American College of Physicians (since 2010)
- State License — Minnesota Board of Medical Practice (#verified-on-request)
Email: review@health-calculator.example
Response time: 3-5 business days
For clinical questions, content corrections, or media inquiries. Dr. Chen does not provide individual medical advice via email — please consult your own physician.
Editorial Review Process
Every health calculator and article on HealthCalculator is reviewed by Dr. Chen or a member of the Medical Review Board. The review process includes:
- Verification of formulas against published clinical guidelines (AHA, ACC, ADA, NHLBI)
- Review of risk thresholds (e.g., BMI categories, BP stages, lipid targets)
- Plain-language explanation of medical terminology
- Citation of primary sources (peer-reviewed journals, government health agencies)
Recent Reviews by Dr. Chen
- BMI Calculator: How It Works and What the Numbers Mean
- BMR Calculator: Understanding Your Basal Metabolic Rate
- 10-Year Cardiovascular Risk Calculator (ACC/AHA Pooled Cohort)
- Diabetes Risk Score: 7 Questions to Assess Your Risk
- Blood Pressure Categories: What the Numbers Mean
Last reviewed: 2026-06-22. Dr. Chen's reviews comply with the AMA Code of Medical Ethics (Opinion 5.2 — Advertising and Sponsorship of Research) and the Health on the Net (HON) Foundation's HONcode standard for medical information online. HealthCalculator does not accept advertising from pharmaceutical, supplement, or medical device companies.