Investor Due Diligence Report
by Paul Offit
Professor of pediatrics at Children's Hospital of Philadelphia; author and co-director of The Vaccine Education Center. Click to read Paul Offit, a Substack with tens of thousands of subscribers.
33K
+4.1%
56.5
199.5
0.78%
(comments + likes) / subscribers
Weekly
0.7 posts/week
71/100
Consistent (~10.4d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| Better Brain by Dr. Julie | 172K | -0.3% | $10/mo | substack |
| Nedra Nuggets | 152K | -0.3% | $6.99/mo | substack |
| Sensible Medicine | 106K | N/A | $8/mo | substack |
| Dr. Jessica Knurick | 69K | +0.7% | $8/mo | substack |
Platform Dependency
Hosted on substack subdomain
Publishing Consistency
Regular publishing schedule
Key Person
Single-author publication — key-person dependency
Audience Concentration
Consistent engagement across posts
Subscriber threshold
33K subscribers — above the 2K category median for first paid tier
Has paid tier
No paid subscription tier yet
Peer monetization
100% of 62 similar-size peers in Health have paid tiers
Disclaimer: This report is generated automatically based on publicly available data and proprietary estimation models. Estimated subscriber counts are derived from engagement patterns and should be verified through direct disclosure. Revenue estimates are based on known pricing and estimated paid subscriber counts. This report is for informational purposes only and should not be the sole basis for investment decisions.
Score based on available components only.
| Component | Score | Weight |
|---|---|---|
| Engagement Rate | 100/100 | 30% |
| Publishing Consistency | 47/100 | 10% |
| 39K |
| N/A |
| $6/mo |
| substack |
Revenue Model
Pre-monetization — no paid subscription tier