John Martens, MD is a oncologist in Des Moines. Operator refreshes the health score, market rank, and review feed every night.
Operator computes a Health score every night at 2 am HST. It is the one number that tells you if this shop is winning, losing, or steady. Here is how John Martens, MD broke down on Apr 21, 2026.
Operator ranks every oncologist in Des Moines every night at 2 am HST using reviews, response rate, and local market share.
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