Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Claire Danielle Barthelmess, MPT

Physical Therapist in Selbyville, DE · enumerated 2006.

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

National Provider Identifier

1558323766

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Registry record

Entity type Individual (Type 1)

Name Claire Danielle Barthelmess

Credential MPT

Sex Female

Practice address 33195 Lighthouse Rd, Suite 7, Selbyville, DE, 19975

Phone (302) 436-0901

Fax (302) 436-0902

Enumeration date Apr 4, 2006

Last updated in NPPES Feb 18, 2022

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License J10001395 (DE) Primary

Other identifiers

Identifier	Type	State	Issuer
020489TBBN	Other	DE	MEDICARE PTAN
965103-01	Other	MD	CAREFIRST

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

How do I verify Claire Barthelmess's NPI record?

Cross-check NPI 1558323766 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1558323766 active?

Yes, as of the latest NPPES snapshot, NPI 1558323766 is active (record last updated 2022-02-18).

Other providers at this practice address

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Coastal Psychology and Education Associates, LLC Psychologist · Selbyville, DE NPI 1659380087 Bayside Physical Therapy, L.L.C. Physical Therapist · Selbyville, DE NPI 1912052309 Bayside Physical Therapy, LLC Physical Therapist · Selbyville, DE NPI 1528518131

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-18.