---
title: "Run a Death Master File check for a practitioner"
method: POST
path: "/credentialing-workflows/dmf-check"
tags: ["CredentialingWorkflow"]
---

# Run a Death Master File check for a practitioner

`POST /credentialing-workflows/dmf-check`

Calls the downstream Death Master File (DMF) deceased-provider check service with the supplied SSN and date of birth. Use this endpoint to verify that the DMF integration is reachable and functioning; it is intended primarily as a diagnostic or administrative tool rather than a routine production call. Both `ssn` (9-digit string) and `dateOfBirth` (format `yyyy-MM-dd`) are required. Returns the raw DMF check result on 200. Returns 502 when the downstream DMF service is unavailable or returns an error.

## Headers

- `tenant-id` string, required

## Request body

- DmfRequest — Request for deceased (DMF) check
  - `ssn` string, required — Social Security Number (9 digits)
  - `dateOfBirth` string, required — Date of birth (yyyy-MM-dd)

## Response `200`

DMF check result

- DmfResponse — Response from deceased (DMF) check
  - `isDeceased` boolean
  - `firstName` string
  - `middleName` string
  - `lastName` string
  - `nameSuffix` string
  - `dateOfBirth` string
  - `dateOfDeath` string
  - `verifiedOrProofCode` string
  - `createdAt` string
  - `updatedAt` string

## Other responses

- `400` — Invalid request (e.g. SSN/dateOfBirth validation)
- `401` — Unauthorized - Authentication required
- `403` — Forbidden - User does not have required permissions
- `502` — DAL DMF (Deceased) check failed or unavailable

---

[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)