---
title: "Retrieve a single group by ID"
method: GET
path: "/groups/{id}"
tags: ["Group"]
---

# Retrieve a single group by ID

`GET /groups/{id}`

Returns the full group record for the given internal group identifier (certifyGroupId). Use this endpoint when you already hold the group's certifyGroupId and need its complete detail; for lookups by NPI, TIN, name, or affiliation use GET /groups with the appropriate filters, or GET /groups/search for autocomplete-style name/NPI/TIN prefix search. The tenant-id header scopes the lookup to a specific tenant.

## Path parameters

- `id` string, required

## Headers

- `tenant-id` string

## Response `200`

Group data for the given certifyGroupId

- object

## Other responses

- `404` — Group not found with the given ID for tenant

---

[API](https://skmtc.net/certifyos/apis/certify-api-layer.md) · [All operations](https://skmtc.net/certifyos/apis/certify-api-layer/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/certifyos/certify-api-layer/revisions/563848e0ecc0/schema)