Why look at the Rio de Janeiro market through official data?
Because regional market figures drive expensive hospital decisions, such as adding beds, negotiating with a payer or joining a new network, and every figure needs a known source, scope and period. Press and broker rankings often mix sources, months and definitions, and two articles about the same state can show different numbers without saying why.
Three databases answer the core questions. IBGE (Instituto Brasileiro de Geografia e Estatística) measures population, which is potential demand. ANS (Agência Nacional de Saúde Suplementar, the federal health plan regulator) measures how many people have a plan and which health plans (operadoras) are registered and have members. CNES (Cadastro Nacional de Estabelecimentos de Saúde), run by the Ministry of Health and published by DataSUS, records hospitals and beds. Together they show the size of private healthcare in the state and the hospital supply available.
The national context, with the market players, the 2025 and 2026 figures and the ANS rules, is in the guide Brazilian private healthcare. This text applies that framework to Rio de Janeiro.
Rio de Janeiro population: what IBGE shows
Rio de Janeiro state had 16,055,174 residents in the 2022 Census and an estimated population of 17,223,547 in 2025 [1]. Population density was 366.97 people per km² in 2022, over a land area of 43,750.424 km² [1].
For a hospital, population is the starting point of any market calculation. The ANS coverage rate, for example, is the ratio of members to population; the ANS website states that its state maps use member data from SIB/ANS (the member information system) and population from IBGE/DataSUS [2]. Two cautions prevent misreadings:
- Census and estimate are different numbers. The 2022 Census is a count; the 2025 estimate is a projection. Use the same population year in every calculation and state which one.
- The state is not the capital. Density, income and hospital supply vary between the city of Rio, the metro area and the rest of the state. To plan a hospital's catchment area, go down to the municipality level in IBGE and CNES.
How many people have health insurance in Rio de Janeiro?
In August 2026, Rio de Janeiro state had 5,567,508 medical health plan members, 26,927 more than in August 2025 (5,540,581), according to a compilation of ANS Sala de Situação data [7]. Against the 2025 estimated population, that is about 32.3% of residents, a calculation by this guide, above the 24.9% national rate [1][2]. Nationwide, medical plans had 53,164,516 members in the same month [8].
The coverage rate shows how much of the state's population has a plan. Compared with the national average, it shows the relative weight of private healthcare in Rio and, therefore, the share of hospital revenue that depends on payers. When using this indicator, record three items with the number:
- Reference month. SIB, the ANS member database, is updated monthly and may be revised after the first release; the figure for the same month can change between two queries.
- Segment. Medical plans and dental-only plans are counted separately. For hospitals, the relevant figure is medical plans.
- Population base. The rate depends on the population used as the denominator; ANS states the source and year of the population in each map [2].
The same care applies to time series. To know whether the state market is growing or shrinking, compare the same month across years, on the same basis and segment.
Payers in Rio de Janeiro: what ANS records show
ANS registers every health plan company and every product, and those records show who operates in the state. Nationwide, there were 887 health plan companies with members in August 2026: 667 medical and hospital plans and 220 dental-only plans [2]. In Rio de Janeiro, membership is concentrated: in 2025, nine payers held 67% of the state's 5,573,928 medical plan members, according to BTG Pactual, based on ANS data [9].
| Operator (group) | Members in Rio de Janeiro | Share |
|---|---|---|
| Amil | 795,292 | 14% |
| Bradesco | 722,501 | 13% |
| SulAmérica | 562,142 | 10% |
| Assim | 492,632 | 9% |
| Hapvida | 367,514 | 7% |
| APPAI | 349,123 | 6% |
| Unimed Ferj | 267,283 | 5% |
| Porto | 100,874 | 2% |
| Central Unimed | 94,211 | 2% |
| All other operators | 1,822,356 | 33% |
| Total | 5,573,928 | 100% |
Source: BTG Pactual, A Bíblia da Saúde 2026, based on ANS data [9]. The report labels the period as 2025, and the total matches the November 2025 figure in the same document. Payers are grouped by corporate group here, unlike the national ranking by ANS registration in the guide on Brazil's largest health plan operators.
See the figures as a table
| Payer (group) | Members in Rio de Janeiro | Share |
|---|---|---|
| Amil | 795,292 | 14% |
| Bradesco | 722,501 | 13% |
| SulAmérica | 562,142 | 10% |
| Assim | 492,632 | 9% |
| Hapvida | 367,514 | 7% |
| APPAI | 349,123 | 6% |
| Unimed Ferj | 267,283 | 5% |
| Porto | 100,874 | 2% |
| Central Unimed | 94,211 | 2% |
| All other payers | 1,822,356 | 33% |
For a hospital, four readings of ANS data help read this picture:
- Portfolio concentration. What share of the state's members sits with the largest payers. The more concentrated, the heavier each contract weighs on revenue.
- Type of company. ANS classifies health plans by type (for example, medical cooperatives, group medicine companies, specialized health insurers, self-funded employer plans and nonprofit plans). The type often signals how the payer organizes its network and claim review.
- Type of contract. The split between individual and group plans affects member premium increases and, in turn, the payer's pressure on prices.
- Geographic scope of the product. Municipal, state or national plans determine whether the payer needs a hospital in each municipality or can concentrate its network.
Payers' finances matter too. The ANS preliminary data for the first half of 2026, covering 214 companies with 84.2% of members, showed a cumulative loss ratio (sinistralidade) of 82.2% through June, versus 81.3% in 2025 [5]. It is a national, sample-based figure; the guides Payer results and Health plan loss ratio explain how to read it. For the national ranking by size, see Brazil's largest health plan operators.
The state's hospital supply is in CNES
Hospitals, beds and services in Rio de Janeiro are recorded in CNES, Brazil's official registry of health facilities. In August 2026, the state had 44,536 existing beds, 24,522 of them available to SUS, according to a directory built on CNES [10]; the remaining 20,014 beds (this guide's calculation) are the non-SUS supply competing for health plan members. In the SUS-linked network, the State Health Department recorded 185 general and 81 specialty hospitals, with 23,942 inpatient beds and 4,538 ICU beds, in December 2025 [6].
CNES is updated by reference month (competência), and figures change as facilities update their records. When mapping supply, separate:
- Ownership and legal type. Public hospitals, for-profit private hospitals and nonprofits serve different markets, and many private hospitals also serve SUS (Sistema Único de Saúde, the public system).
- SUS and non-SUS beds. CNES distinguishes beds available to SUS from the rest. For private healthcare, non-SUS beds are the supply competing for health plan members.
- Bed type. Medical, surgical, obstetric, pediatric and complementary beds (such as intensive care) have different demand and prices. The useful comparison is by type.
- Municipality. Supply concentrated in the capital and metro area may coexist with gaps in the interior, where the network replacement rule weighs more.
Crossing non-SUS beds with health plan members in the same area gives a simple measure of supply per member. It is a planning calculation, not an official indicator: record both sources and both periods.
The provider network belongs to the product
In Rio de Janeiro, as in all of Brazil, a plan's hospital network is that of the product registered with ANS, and the rules for changing that network apply to every payer. Law 9,656/1998 (Lei 9.656/1998, the health plan law), article 17, allows a hospital to be replaced only by an equivalent one, with 30 days' notice to members and ANS; an inpatient stays until discharge, paid by the payer; and reducing the hospital network requires prior ANS approval [3].
Normative Resolution (RN) 585/2023 details equivalence: the replacement must be in the same municipality and, if none exists, in a neighboring municipality or the same health region [4]. The rule has applied since 12/31/2024 and calls for a review after 24 months [4]. In a state where supply is concentrated in a few municipalities, this rule makes hospitals in the interior harder to replace.
For hospitals, the practical effect is twofold. Leaving a contract is not immediate for the payer, which leaves time to negotiate. And joining a network depends on the product, not the brand: the same group may sell plans with different networks. The guide Provider network termination details deadlines and documents, and Payer vertical integration covers the effect of payer-owned networks on independent hospitals.
Source map for the regional market
The table shows where to find each data point on the Rio de Janeiro hospital market, with scope and reading cautions.
| Question | Source | Scope and period | Reading caution |
|---|---|---|---|
| How many people live in the state? | IBGE — Cidades e Estados [1] | 2022 Census; annual estimate | Do not mix Census and estimate in one calculation |
| How many have a health plan? | ANS — Dados Gerais and Tabnet [2] | Monthly, by state and municipality | Use medical plans; record month and revision |
| What is the coverage rate? | ANS — Dados Gerais [2] | Monthly, by state | Check the population base used |
| Which payers operate, and with what weight? | ANS — company records and members by state [2]; BTG Pactual [9] | Monthly (ANS); annual (BTG) | Read concentration and type; a corporate group is not an ANS registration |
| How are payers doing financially? | ANS — financial data [5] | Quarterly; half-year previews | A preview is a sample, not the whole market |
| How many hospitals and beds exist? | CNES/DataSUS; State Health Department [6]; directories built on CNES [10] | Monthly (competência) | Separate ownership, SUS vs non-SUS beds and bed type |
| What changes the network? | Law 9,656/1998, art. 17 [3]; RN 585/2023 [4] | In force | Equivalence in the same municipality |
See the figures as a table
| Payer (group) | Members in Rio de Janeiro | Share |
|---|---|---|
| Amil | 795,292 | 14% |
| Bradesco | 722,501 | 13% |
| SulAmérica | 562,142 | 10% |
| Assim | 492,632 | 9% |
| Hapvida | 367,514 | 7% |
| APPAI | 349,123 | 6% |
| Unimed Ferj | 267,283 | 5% |
| Porto | 100,874 | 2% |
| Central Unimed | 94,211 | 2% |
| All other payers | 1,822,356 | 33% |
Which trends should hospitals watch in Rio?
The trends that most affect hospitals in the state are national ones read at the local level: plan membership, payer finances, network changes and contract rules. Four signals deserve monthly or quarterly tracking:
- Members in the state. Growth or decline of medical plan membership in Rio de Janeiro, comparing the same month across years [2].
- Loss ratio and results. Nationwide, the cumulative loss ratio in the ANS sample was 82.2% through June 2026 [5]. A rising loss ratio often comes with more pressure on prices, prior authorization and denial (claim denial).
- Network change requests. Hospital replacements and network reductions go through ANS [3][4]. Tracking the products that include the hospital helps anticipate changes.
- Private network expansion. In the city of Rio, the Ministry of Health received 31 requests to add private hospitals to CNES in 2024 and 100 in 2025. One hospital can file more than one request, so the count does not equal new hospitals [11].
- Contracting rules. ANS is discussing a new rule on payer–provider contracts (Public Consultation 170/2026) that would revoke RN 503/2022; see Hospital–payer contract.
What we see in operations
At Accrua, a picture of a regional market starts with each hospital's claims history. The public data in this guide show the size of the insured population and how concentrated it is; the history shows how each health plan behaves with that hospital: denials by reason, appeals upheld and time from receipt to payment, by plan and claim type.
In a concentrated market, a change at a single health plan carries weight. That is why we track claim volume by health plan and by product over time: a network substitution or reduction shows up first as a drop in volume, before it shows up in the month's billing.
Accrua OS runs on top of the HIS/ERP the hospital already uses and loads the contract, price table and authorization rule for every health plan it serves. For hospitals in the state that need cash on time, Receita Garantida uses the same risk reading to put the value of eligible production into the hospital's cash, with Accrua taking on the risk of eligible denials.
Where to start
- Define the hospital's catchment area by municipality and pull the population from IBGE, noting whether it is the 2022 Census or an annual estimate.
- Download ANS medical plan member counts for those municipalities and the state, with the reference month, and calculate local coverage.
- List the payers with members in the area and cross-check them against the hospital's contracts: who is in, who is missing and how much each weighs.
- Map supply in CNES: hospitals and non-SUS beds by type in the same municipalities, with the reference month.
- Review the map every quarter and whenever a payer requests a replacement or network reduction involving the hospital.