John Mandrola

@johnmandrola · Stop and Think · Substack profile · Science

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John Mandrola has 116,112 followers on Substack as of Oct 31, 2026. On the latest board read, Nov 6, 2026, they were #85 on Substack's Science Bestsellers board. 52 publications recommend them, and they recommend 7.

Followers read 7 days ago · Boards read 2 h ago

Last read Oct 31, 2026 (UTC). Followers are not email subscribers. Substack lists only the newest 50 recommendations for each publication, so a recommender count of 50 or more is a floor. History starts Oct 31, 2026; Substack publishes nothing earlier.

Followers: 116,112; read Oct 31
Last 7 days: first number on Nov 7
Last 30 days: first number on Nov 30
Subscribers: 114K+; rounded by Substack
Paid subscribers: Thousands; bestseller badge 1,000+
Recommended by: 52; none new in 30 days
Recommends: 7
Bestsellers rank: #85; Science

Followers by day

Tracking since Oct 31, 2026. This is the first reading. Substack doesn't publish past follower counts, so history starts the day I first read a writer and grows by one reading every 3 days (daily if it's on your watchlist). The 7-day change appears on Nov 7, the 30-day change on Nov 30. Recommendation dates below go further back: they're Substack's own.

One reading a day, the last of the day. Marked: leaderboard steps (into the top 25, top 10, or #1). Followers are people who follow John Mandrola on Substack; they aren't email subscribers.

Show as a table

Daily readings
Date	Followers	Change	Subscribers	Paid band
Oct 31, 2026	116,112		114K+	Thousands

Leaderboard positions

Board	Rank now	Best on record	Reads on it
Science Bestsellers	#85	#84	4 of 4
Science Rising	#40	#40	3 of 4

Rank on each read

Rank on each read of each board. Each cell is the leaderboard rank; empty means not in the top 100.
Writer	Oct 3107:00	Oct 3113:00	Oct 3119:47	Nov 621:50	Move
Science Bestsellers	84	84	84	85	▼1
Science Rising		98	98	40	▲58

I read every board once a day.

Recommendations

52 publications recommend John Mandrola. John Mandrola recommends 7, and 2 of those recommend back. Lists read Oct 31.

The 9 largest publications on each side, by followers. Bigger dot, more followers. Orange: started in the last 30 days. Gray dots: publications I don't track, so no follower count.

When the recommendations started

Live recommendations by the month each began, using Substack's own start date. Removed ones aren't listed by Substack, so they don't appear. Substack shows only the 50 newest recommenders, so before Jul 2024 (outlined) I see only those from the 6,392 publications whose full lists I read.

Show as a table

Recommendations started per month
Month	Started
2022-11	2
2024-07	2
2024-08	2
2024-09	1
2024-10	2
2024-11	1
2024-12	4
2025-01	1
2025-02	2
2025-03	1
2025-04	2
2025-05	3
2025-06	3
2025-07	1
2025-08	1
2025-10	1
2025-11	5
2025-12	2
2026-01	2
2026-02	1
2026-04	1
2026-05	2
2026-06	3
2026-07	3
2026-08	2
2026-09	2

Recommended by

Adam Cifu, MD109k followers · started Nov 2022 · mutual
The Skeptical Cardiologist20k followers · started Nov 2022 · mutual
Brendan's Substackstarted Sep 12, 2026
Worth the medicine?started Sep 12, 2026
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Stanley Tillinghaststarted Aug 8, 2026
The Science Of Letting Gostarted Jul 18, 2026
Il Substack di Fabiostarted Jul 11, 2026
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El Substack de Carlosstarted Jun 24, 2026
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jaffi's Substackstarted May 23, 2026
Magic Loves the Hungrystarted May 1, 2026
DavidGilks's Substackstarted Apr 24, 2026
Judy's Substackstarted Feb 1, 2026
El Substack de Maríastarted Jan 23, 2026
The Record Standsstarted Jan 3, 2026
Steve’s Substackstarted Dec 22, 2025
Ian's Substackstarted Dec 19, 2025
David's Substackstarted Nov 21, 2025
Scott's Substackstarted Nov 17, 2025
Randall's Substackstarted Nov 17, 2025
jschianodicola's Substackstarted Nov 16, 2025

All 52

Robbie's Substackstarted Nov 2025
Gavin's Substackstarted Oct 2025
Medical News Insiderstarted Aug 2025
Contemporary Contemplationsstarted Jul 2025
Professor’s Substackstarted Jun 2025
Physician-Led Health Coachingstarted Jun 2025
HealthDaystarted Jun 2025
James’s Substackstarted May 2025
Kelly’s Substackstarted May 2025
TheSurgicalRegstarted May 2025
Lynda’s Substackstarted Apr 2025
Sacrificial Lambdastarted Apr 2025
Rev’s Substackstarted Mar 2025
Cardiology Made Easystarted Feb 2025
William’s Substackstarted Feb 2025
Richard’s Substackstarted Jan 2025
Karen’s Substackstarted Dec 2024
LOUIS’s Substackstarted Dec 2024
Manolo’s Substackstarted Dec 2024
j’s Substackstarted Dec 2024
Akbar’s Substackstarted Nov 2024
Reforming Medicine — Rod Story, M.D.started Oct 2024
Claude’s Substackstarted Oct 2024
Alan’s Substackstarted Sep 2024
Sharon’s Substackstarted Aug 2024
Catherine’s Substackstarted Aug 2024
gord’s Substackstarted Jul 2024
Thor’s Substackstarted Jul 2024

Recommends

Vinay Prasad MD MPH158k followers · started Nov 2023
Adam Cifu, MD109k followers · started Nov 2022 · mutual
The Skeptical Cardiologist20k followers · started Nov 2022 · mutual
Dr. Anish Koka's Newsletterstarted Dec 2023
Andrew J Foystarted Nov 2023
Numerical Heartstarted Nov 2023
Liminal MDstarted Nov 2022

Substack lists the 50 newest recommenders of each publication. I add every recommendation found in the full lists of the 6,392 publications I read, so writers with many recommenders may still be missing a few small ones. "Started" is Substack's date.