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John R Glyer D Mills Matheson & Margaret Arner Mds Ptr

Rural Health Clinic/Center in Willits, CA · enumerated 2006 · authorized official Donald Matheson, Managing Partner.

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

National Provider Identifier

1568525400

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Registry record

Entity type Organization (Type 2)
Legal business name John R Glyer D Mills Matheson & Margaret Arner Mds Ptr
Other name <Unavail>
Practice address 1245 S Main St, Willits, CA, 95490
Phone (707) 459-6861
Fax (707) 459-3057
Enumeration date Dec 19, 2006
Last updated in NPPES Dec 15, 2010

Taxonomy & classification

261QR1300X Rural Health Clinic/Center Ambulatory Health Care Facilities · License 053968 (CA) Primary

Authorized official

Name Donald Matheson
Title Managing Partner
Phone (707) 459-6861

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.

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Frequently asked questions

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is John R Glyer D Mills Matheson & Margaret Arner Mds Ptr?
John R Glyer D Mills Matheson & Margaret Arner Mds Ptr is registered in NPPES as a Rural Health Clinic/Center (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-15.