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Payer price transparency data

Kaiser Permanente

Kaiser Permanente is a health insurer. They report 3.6K insurance plans covering 1M providers across 210K billing codes.

Source: public Transparency in Coverage filesRefreshed monthly, latest September 202619 monthly releases tracked

Monthly release

3.6K

Plans

XX% vs prior month

1M

Providers (NPIs)

XX% vs prior month

470K

Tax IDs

XX% vs prior month

210K

Billing codes

XX% vs prior month

650M

Rate rows

XX% vs prior month

September 2026 release

What's in Kaiser Permanente's data

A profile of the machine-readable files Kaiser Permanente publishes, after PayerPrice parses and normalizes them.

Billing code types

Distinct codes and rate rows by code system

CodesRows
  • CPT42K390M60%
  • HCPCS12K240M37%
  • CDT1.7K13M2.1%
  • LOCAL33K4.3M0.7%
  • RC9502.3M0.3%
  • NDC100K1.1M0.2%
  • APC5.2K1.1M0.2%
  • FY2026770130K<0.1%
  • ICD10K60K<0.1%
  • APR34031K<0.1%
  • MS-DRG80025K<0.1%
  • CSTM-ALL123K<0.1%

Billing class

Professional vs. institutional rate rows

  • Both330M51%
  • Professional220M33%
  • Institutional100M16%

Negotiation arrangement

How each rate is expressed

  • Fee Schedule280M42%
  • Negotiated200M30%
  • Percentage180M27%
  • Derived550K<0.1%
  • Per Diem440K<0.1%

Plan identifiers

HIOS IDs mark individual and small-group plans; EINs mark employer plans

  • HIOS ID1.3K37%
  • EIN2.3K63%

Providers by type

Distinct NPIs by entity type

  • Individual (Type 1)960K93%
  • Organization (Type 2)74K7.2%

Tax IDs by type

How provider groups are identified

  • NPI (Individual)330K72%
  • EIN120K26%
  • NPI (Organization)7.7K1.7%

Top states

States with the most providers in network

  • California300K
  • Colorado61K
  • Maryland52K
  • Washington49K
  • Texas43K
  • Virginia43K

Top specialties

Provider taxonomies with the most NPIs

  • Family Medicine Physician56K
  • Internal Medicine Physician55K
  • Emergency Medicine Physician53K
  • Family Nurse Practitioner48K
  • Physician Assistant44K
  • Behavior Technician35K

These are the files. Want the rates inside them?

Look up Kaiser Permanente's negotiated rates by provider, TIN, billing code and plan.

Month-over-month history

Track how network size and rate volume change with each monthly release.

MonthPlansNPIsTax IDsBilling codesRate rows
September 20263.6K1M470K210K650M
August 20264.6K880K440K210K300M
July 20265K900K440K210K440M
June 2026————
May 2026————

Data quality scorecard

4/6Acceptable

This payer scores 4/6 on data quality (Acceptable). Areas that don't meet the threshold: valid tax ids and low derived/percentage rates.

Evaluated on the September 2026 release.

  • Professional & Institutional Rates

    Data includes both professional and institutional billing class rates

  • Valid Tax IDs

    Less than 80% of Tax IDs are EIN or NPI (Organization) type

  • HIOS Plan

    Data includes at least one HIOS-identified plan

  • Low Derived/Percentage Rates

    10% or more of negotiation entries are derived or percentage type

  • Standard Code Coverage

    Sufficient CPT and HCPCS code coverage with low proportion of LOCAL entries

  • Common Taxonomies

    NPIs in the dataset cover at least 50 distinct provider taxonomies

How the score works

Each monthly release is checked against six criteria. 5–6 passing criteria rate Good, 3–4 rate Acceptable, and 0–2 rate Poor.

Behavioral, RX, and other specialty networks may not pass all criteria but can still contain complete and usable data.

Access the data

Kaiser Permanente's negotiated rates, in the tools your team already uses

PayerPrice turns raw transparency files into one clean, normalized dataset across 180+ payers, refreshed every month. Pick how you want to work with it.

UI

Web app

Search Kaiser Permanente's rates by code, provider or market and export the results. No setup required.

Start free trial
API

REST API

Pull negotiated rates, providers and benchmarks into your own products and pipelines.

Explore the API
SQL

Snowflake & Databricks

Query the full normalized dataset with SQL or PySpark, shared directly into your warehouse.

See data sharing
AI

MCP server

Ask Claude, Cursor or your own agents questions like "What does Kaiser Permanente pay for CPT 99213 near me?"

Read the MCP docs
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Frequently asked questions

About Kaiser Permanente's price transparency data.

What price transparency data does Kaiser Permanente publish?

Kaiser Permanente's September 2026 Transparency in Coverage files list 3.6K plans, 1M providers (NPIs), 470K tax IDs and 210K billing codes, for 650M negotiated rate rows in total.

Which states does Kaiser Permanente's network cover?

Kaiser Permanente's files include providers in 51 states. The states with the most in-network providers are California, Colorado, Maryland, Washington, Texas.

How often is Kaiser Permanente's data updated?

Payers must post updated machine-readable files every month. PayerPrice processes Kaiser Permanente's files monthly; the latest processed release is September 2026, and 19 monthly releases are available.

What is the Transparency in Coverage rule?

Since July 2022, the federal Transparency in Coverage rule has required most group health plans and health insurers to publish machine-readable files of their in-network negotiated rates and out-of-network allowed amounts, updated monthly. These files are the source for the data on this page.

How can I access Kaiser Permanente's negotiated rates?

Start a free PayerPrice trial to search Kaiser Permanente's rates in the web app, or book a demo to get the full dataset through the REST API, SQL in Snowflake or Databricks, or AI assistants through the PayerPrice MCP server.