I'm Dr. Siddharth — MBBS, Trichy SRM Medical College. I co-founded a generalist marketing agency in early 2025 and watched it firsthand: specialist clinics getting handed the same templated playbook as restaurants and salons.
I left to build the inverse. Brand Doctor isn't an agency. It's a diagnostic system — the 8-Dimensional Authority Audit — built for specialist clinicians who've already tried "marketing" and want a system instead.
I work with a small founding cohort. If you've fired an agency and you're done being sold to, we should talk.

siddharth rajasekar

Dr. Siddharth Rajasekar

"Free. No pitch. I'll score your practice across 3 of the 8 dimensions live on the call and tell you whether the full audit is worth your time. If it isn't, I'll say so. If it is, you'll know exactly what's broken before any conversation about working together."

The 15-Minute Authority Check

"For specialist clinics (₹80L–₹4cr revenue) who've already had at least one agency engagement that didn't deliver. We talk through what failed, what your practice needs, and whether the founding cohort is the right next step. Limited to founding-cohort applicants."