Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mirian W Groenendaal, P.T.

Physical Therapist in Coos Bay, OR · enumerated 2007.

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

National Provider Identifier

1124164678

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Registry record

Entity type Individual (Type 1)

Name Mrs. Mirian W Groenendaal

Credential P.T.

Sex Female

Practice address 1957 Thompson Rd., Coos Bay, OR, 97420

Phone (541) 266-7050

Fax (541) 266-0180

Enumeration date Jan 30, 2007

Last updated in NPPES May 18, 2012

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 1813 (OR) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

Other identifiers

Identifier	Type	State	Issuer
182751	Medicaid	OR	-
410254301	Other	OR	REGENCE BCBS

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

What is the NPI number for Mirian Groenendaal?

The National Provider Identifier (NPI) for Mirian Groenendaal is 1124164678, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mirian Groenendaal practice?

The practice location on file with NPPES is in Coos Bay, OR. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-05-18.