Dr. Marcus Tan, MD — Medical Reviewer
Dr. Marcus Tan, MD is a board-certified internal medicine physician and the Medical Reviewer for BestMedsHub. He oversees the clinical accuracy of every guide, comparison, and review published on this site — from erectile dysfunction telehealth platforms to GLP-1 weight-management programs to testosterone replacement therapy.
Background
Dr. Tan is a New York–based internist with more than twelve years of clinical and editorial experience. His professional focus is the intersection of primary care and digital health: how telehealth-delivered prescriptions, asynchronous care models, and direct-to-consumer pharmacies actually perform against the standard of in-person internal medicine.
He brings that lens to every piece of content on BestMedsHub. When a guide claims a telehealth provider is “good for ED,” Dr. Tan has reviewed whether the underlying prescribing workflow — intake form depth, physician oversight, contraindication screening, follow-up cadence — meets the same baseline he would expect in an office visit.
Medical Education and Training
- Medical School: New York University Grossman School of Medicine, Doctor of Medicine (MD)
- Residency: Mount Sinai Hospital, New York — Internal Medicine
- Board Certification: Diplomate, American Board of Internal Medicine (ABIM)
Areas of Expertise
Dr. Tan’s editorial review work concentrates on the verticals where telehealth has the largest footprint and where consumer confusion is highest:
- Men’s sexual health — erectile dysfunction (sildenafil, tadalafil, generic vs. brand), premature ejaculation, hair loss (finasteride, minoxidil), and the broader category of men’s wellness telehealth.
- Weight management — GLP-1 receptor agonists (semaglutide, tirzepatide), compounded vs. branded medications, insurance navigation, and the safety profile of online weight-loss programs.
- Testosterone replacement therapy — appropriate diagnostic workup, monitoring requirements, and the difference between legitimate TRT clinics and prescription mills.
- Telehealth quality and access — state licensing patterns, asynchronous vs. synchronous care, and how regulatory changes (FDA enforcement letters, DEA controlled-substance rules, state board actions) affect what consumers can actually get online.
Editorial Role at BestMedsHub
Dr. Tan reviews BestMedsHub content for three things, in this order:
- Clinical accuracy. Every dosage, mechanism of action, contraindication, and side-effect description on this site has been checked against current prescribing information and peer-reviewed literature.
- Appropriate scope. BestMedsHub is a comparison and education site, not a substitute for a clinician. Dr. Tan flags content that risks reading as personalized medical advice and ensures every guide directs readers toward a licensed provider for actual care decisions.
- Honest provider assessment. When BestMedsHub reviews a telehealth provider, Dr. Tan evaluates whether the underlying clinical workflow is sound — not just whether the website looks polished.
He has contributed to peer-reviewed work on telehealth efficacy and continues to track the literature on remote prescribing, GLP-1 safety, and digital-health quality measurement.
Why a Medical Reviewer Matters
The health-comparison space is full of affiliate sites that publish drug and provider content with no clinical oversight. That is a problem in any category, but it is a serious problem when the topics are prescription medications, hormone therapy, and conditions that overlap with mental health. BestMedsHub’s commitment is that no clinical claim, dosage, or safety statement is published without a board-certified physician signing off on it. That physician is Dr. Tan.
Important Disclaimer
Contact
For editorial correction requests, medical-review questions, or press inquiries related to BestMedsHub content, please use the BestMedsHub contact form. Dr. Tan does not respond to individual medical questions.