MARK J BRENNAN, MD

NPI 1225001746, an individual provider in CLINTON TOWNSHIP, MI 48038.

NPI: 1225001746
Entity type: Individual (type 1)
Status: Active
Practice location: CLINTON TOWNSHIP, MI 48038
Enumerated: 2006-02-08
Last updated: 2019-03-04

Request

curl https://api.healthcare.dev/v1/providers/1225001746 \
  -H "Authorization: Bearer $HDEV_API_KEY"

NPPES

Taxonomy codes

2081N0008X Primary

Codes from the Health Care Provider Taxonomy code set; their names belong to the NUCC and aren't shown here.

Official record

The CMS NPI Registry is the official source for this NPI: NPI 1225001746 in the NPI Registry.

Use it

Look up 1225001746 from code or an agent

curl

curl https://api.healthcare.dev/v1/providers/1225001746 \
  -H "Authorization: Bearer $HDEV_API_KEY"

MCP prompt

Using the healthcare.dev MCP server, look up NPI 1225001746. Tell me the provider's name, whether it is an individual or an organization, whether the NPI is active, its taxonomy codes and its practice city and state.

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Source: CMS NPPES file, release 2026-11. Public (FOIA-disclosable). Registry data as CMS publishes it, not a verification of credentials, licensure or enrollment.