New York City · IVF & Fertility · Professional
Natan Bar Chama
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All-time mentions
1
AI responses in this market that named Natan Bar Chama.
AI coverage
1/4
AI assistants that named this professional across all published research.
All-time assistant breakdown
Every published run for this market is counted here.
| Assistant | Citations |
|---|---|
| ChatGPT | 0 |
| Claude | 0 |
| Gemini | 0 |
| Perplexity | 1 |
Measurement window
All-time results for this market
Responses analyzed
8,942
Responses naming professional
1
Lifetime mention rate
0.0%
These totals cover all analyzed responses for this city and category. The professionals ranking shows the latest dated snapshot.
Buyer questions and AI answers
Simulated buyer questions from Atlas’s test dataset, paired with AI answers that mentioned this firm or professional. Open to see the questions and what was said.
1 AI answers with recorded context · 0 reviewed in context
Atlas asks AI assistants questions written from the perspective of people seeking services in a particular city and situation. Each example connects a simulated buyer question to an answer that named this firm or professional. A name can appear as a recommendation, a related adviser, a comparison, or even an option the assistant advises against.
A mention does not verify services, eligibility or suitability. Context review explains how the name was used; it does not verify the assistant’s claims. Explore the test questions and methodology.
Simulated buyer question · IVF & Fertility · New York City · Medical Budget is not the constraint. New York City. Complex case — 40yo, DOR, one failed cycle. Who is the top of the market here for a case like this? Names, please. perplexity/sonar-pro 2026-07-13 15:07:26 How the name appeared: Uncertain Open question and AI answer
What the simulated buyer asked
Budget is not the constraint. New York City. Complex case — 40yo, DOR, one failed cycle. Who is the top of the market here for a case like this? Names, please.
… and leadership in complex IVF and DOR.[2][8]
- Dr. Tanmoy Mukherjee – Senior REI at RMA, known for detailed, data-driven approaches in difficult prognostic cases.
- Dr. Natan Bar Chama – Focuses on male factor and complex couples but practices in a center recognized globally for advanced IVF and tailored protocols.[8]
Columbia University Fertility Center
- Dr. Mark V. Sauer – Senior figure in reproductive medicine at Columbia; leads a program described as combining top experts with state-of-the-art tech and customized plans for c…
How to read this mention
The role of this name in the answer is uncertain or has not been reviewed.
Unreviewed contextual evidence; no qualification established.
Market: IVF & Fertility · New York City · Medical
Factual accuracy: unverified · Practice fit: unknown
Context review: unreviewed. This is separate from practice eligibility and ranking.
No source URLs were recorded for this answer.
Selected examples from the test dataset are shown here. Excerpts show part of an answer; full response records remain part of the audit. Each market has its own question set and sample, so these examples do not establish an overall rank.
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