---
title: "MEDMASTER SERVICOS MEDICOS SOCIEDADE SIMPLES — Ownership Dossier"
canonical: https://whiteintel.dev/entity/488cbed7-9929-5ce0-ad61-9f67ac444dda
json: https://whiteintel.dev/api/public/dossier/488cbed7-9929-5ce0-ad61-9f67ac444dda
identifier: br-cnpj:29058194
jurisdiction: BR
source: WhiteIntel corporate-ownership graph
---

# MEDMASTER SERVICOS MEDICOS SOCIEDADE SIMPLES

**Type:** Company  
**Jurisdiction:** [BR](https://whiteintel.dev/jurisdictions/br)  
**Identifier:** `br-cnpj:29058194`  
**Canonical dossier:** https://whiteintel.dev/entity/488cbed7-9929-5ce0-ad61-9f67ac444dda  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/488cbed7-9929-5ce0-ad61-9f67ac444dda  

## Registry profile

- **Legal form:** `2232`  
- **Source:** RFB-CNPJ  

## Ownership & control

### Owners / controllers

- **NANCI KARAKHANIAN** (owner) — https://whiteintel.dev/entity/fc7e939c-bc22-52e2-8a7e-5c6c5e513e9a
- **ZILDA SHEILA DUTKIEWCZ** (owner) — https://whiteintel.dev/entity/93ab148b-ffd8-59a2-9346-ab2ebe2b4dcb
- **MIGUEL BIONDI JUNIOR** (owner) — https://whiteintel.dev/entity/7bd3bbcf-2dc1-5ad0-8e48-8e1d4047319a
- **GERSON NICOLLETTI** (owner) — https://whiteintel.dev/entity/05d1dcb5-33de-50a3-bba2-00a46f97b89f

### UBO chain (walk to the ultimate owner)

A **4-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Provenance

- rfb_cnpj — https://casadosdados.com.br/solucao/cnpj/29058194

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **MEDMASTER SERVICOS MEDICOS SOCIEDADE SIMPLES** — https://whiteintel.dev/entity/488cbed7-9929-5ce0-ad61-9f67ac444dda · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MEDMASTER SERVICOS MEDICOS SOCIEDADE SIMPLES**. Human view: https://whiteintel.dev/entity/488cbed7-9929-5ce0-ad61-9f67ac444dda · Structured JSON: https://whiteintel.dev/api/public/dossier/488cbed7-9929-5ce0-ad61-9f67ac444dda._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._