Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Brook Medical Services Pllc

Chronic Care Clinical Nurse Specialist in Mercer Island, WA · enumerated 2023 · authorized official Michael Merrill, Managing Member.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1093597122

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Brook Medical Services Pllc

Practice address 9325 Se 57th St, Mercer Island, WA, 98040

Phone (858) 794-0981

Enumeration date Oct 13, 2023

Last updated in NPPES Oct 13, 2023

Taxonomy & classification

364SC2300X Chronic Care Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers Primary

Authorized official

Name Michael Merrill

Title Managing Member

Phone (425) 870-9337

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Brook Medical Services Pllc located?

The practice location on file with NPPES is in Mercer Island, WA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2023-10-13. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-13.